Hi Andreas! Great to see all the awesome content about using LoRaWAN and The Things Network. We’ve released a new version of our network server, and we'd like to work with you to refresh some old content so it aligns with The Things Stack (the old network server is being sunset). What's the best way to reach you?
Andreas...The number of things that could go wrong in setting up a Lora node is staggering! Even setting up parameters on the website looks complicated. Thank you for sharing your knowledge. Great content well presented!
It is amazing to see how this video and #115 has given me (three years later) two fundamental aspects to get my 1-channel gateway and my node to work on TTN. Subtle but remarked details that I have not found in any how-to I have followed up! Thanks Andreas!!!! :)
Great video, I was scratching my head for a few hours trying to figure out how I could run the Dragino LoRa shield. Then I stumbled upon this video... Explanation was very good, I managed to make it work. Thank you!
Since I'm putting up my LoRa shield, this is a nice recap. So sad to find out that I already forgot so many details from the first time I saw this video. Fortunately we have UA-cam and all your videos available... ;-)
great video Andreas, I think you cleared up the difference between the various modules, especially the rfm95 and the rfm69 verywell. Having said that, for most people LoRa is just about connecting something over a distance and then it doesnt need to be 'LoRa' enabled, as long as one has similar ttransceivers at both ends. The shield you use is indeed very neat and handy as an (almost) straight out of the box solution. I have been deliberating using it, but the hardwiring of the cs to pin 10 was a bit of a minus to me, but I would definitely recommend that one if one is looking for an easy entry into Lora
Thanks for the feedback! I think, currently, for most people, a "private" network is sufficient, especially if they do not have a gateway round the corner...
Tx a lot Andreas. For the record, my Dragino is v1.4 and is connected to a Multitech Conduit AP that works as a Network Server (then I take out the data consuming a ws with Node Red)
I had to update my version of Arduino IDE to the latest version 1.8.x from arduino.cc - before I had compiler errors! now it sends messages to a gateway in Zurich ETHZ - 10 km from my home. Great! Thanks for such great instructions!
Andreas Spiess I like your view on life ;) I bought a few sonoff products, including the wall switch only to find that my wall switch doesn't have a negative wire... only the live switch wire! Only solution I can think of is putting a negative wire down trunk from the attic. :(
Andreas Spiess I don't think the Irish took their construction industry very seriously to start off with, the return wire just went back to the box with all the lights of the house on one fuse :)
@@AndreasSpiess I only encountered one issue, after sending 2-3 messages, ttn stops receiving/accepting messages, even though the gateway logs show messages coming from the Arduino
good video Andreas, it's a bit difficult to understand 100% since I do not know much English but there we are, thanks for taking the time to make these videos. Greetings from Peru (y)
I am using dragino Lora shield for my node, but its Antenna is not good. Could you tell me what kind of Antenna you have used in this video! Thank you. Regards from Germany
Thanks for the feedback. This is more a module. And they seem to use different chips inside. If the modules "speak" LoRa, you find the usual suspects from Semtech (SX12...).
hi Andreas I am new to LoraWan. I would like to know why I upload the lmic-abp file to the 433MHz lora shield with entering the network section key, app section key and devaddress. When I open the serial monitor of Arduino , it stucks and loop in packet queued and EV_TXComplete ( includes waiting for RX windows) while the ttn shows not connected of my device.
Hi Andreas! Thanks for all the content about LoRaWAN This and others videos help me a lot, even in TTN v3. I trying to make a node with the same shield (Dragino Lora Shield v1.4) because I need to send some raw data (a lot of bytes that represent an "string message"). I'm using and arduino mega with the lastest version con MCCI LMIC Library and for my location I'm using AU915 frecuency plan. At the time I can send a custom uplink message, but I have 2 questions: 1) I don't understand, Why this device can only be activated by ABP? 2) How can I send a downlink to this? Greetings from Chile
1. You have to choose OTAA in your code. The newest version of MCCI should support it 2. Your program has to support downlink. From the console, you can send a message. The newest version of MCCI should support it. Maybe you google.
Andreas, thank you for all your videos. They are great, very educational and clear, congratulations. BTW, is it hard to use the data generated from the sensor nodes, in a webserver? i.e. put it into a sql DB?
Thank you Andreas! Thank you very much. Excellent tutorial! Before you climb up to that hill, you probably have noticed that you have a 915 MHz Dragino LoRa Shield ua-cam.com/video/duwUwXt-hs8/v-deo.htmlm38s It works at 868 MHz, too, but probably isn't optimal for a range test.
OK, I remember that you told about such a device :-) If you have an RFM9X module (with an sx1272 or sx1276 chip) there, it would be interesting to know, how a simple wire antenna would do there on the hill. If I here place a 868 MHz transmitter into my freezer and wait few minutes my factory made Dragino LoRa Shield (with its RFM95W module and SMA connected antenna and in the room temperature) stops to hear the transmissions. But my plain RFM95W module with an ordinary 8.2 cm wire antenna still catches all the transmissions. learn.adafruit.com/adafruit-rfm69hcw-and-rfm96-rfm95-rfm98-lora-packet-padio-breakouts/overview?view=all#wire-antenna
Strange. Are you sure you use a 868 MHz antenna. The 2.4 GHz antennas look very similar and I also got a 2.4 GHz antenna with ma GPS module (which is on 1.5GHz)...If so, the difference would be explainable.
It amazes me how much is out there these days with regard to wireless connectivity. What I have yet to find, though, is anything that talks about how far you can go over various kinds of wires. Like RS232 (at real RS232 levels), TTL levels, SPI, I2C, and all sorts of other stuff. I have coax, twisted pair, and so on to mess with. How far away can you put a sensor from a microcontroller? How far can two microcontrollers be from each other and still talk to each other, using what method? Assuming that I did go wireless at some point, how to choose which of the many ways to use?
Hi Andreas, great video with all the relevant explanations and a lot of tricks and useful information alongside the core content. It seems TTN server has changed however and details look different. I can't see the DEVADDR and a number of differences on the server backend. Is there a plan to update the content?
I just love your channel and i always come back if i have to remember to one or the other fact Question: is the lmic library from your video still the one you recommend? Its is now 4 years old!
@@AndreasSpiess Andreas thanks for all your videos they are all very interesting and informative. For some weeks I've been experimenting with two LoRaWan nodes, (Nano+RFM95 the other a Heltec ESP32 module with LoRa). Both are working as expected, apart from terrible range. I'm getting about 1.5km. Terrible I hear you say, after your world record. I noticed in a comment in Matthijs Kooijman library he thinks the modules are not responding to the TX power settings set in the library. I was wondering if you've experienced any range and power issue brought about by the library? I have 5dBi gain antenna attached to each module and have tested against commercial outdoor Gateways. Each time just 1.5km range. All this suggests my LoRaWan nodes are at fault. Unfortunately, I don't have access to a spectrum analyser to measure the output power.
Very good resourceful video. Can lora nodes be used with Raspberry pi instead of Arduino? Does software support already exist for it or code needs to be written newly? Most of the video in the internet use arduino or some other microcontroller as lora node but not the raspberry pi thats why i got this doubt.
Hello Andreas Thanks for one more wonderful explanation of LoRa. I just upgraded to Arduino IDE ver. 1.8.10 and had the error "Multiple libraries were found for lmic.h". No more compilation and upload to the Uno was possible. The solution is here: www.bountysource.com/issues/81344485-unable-to-compile-lmic-lib-with-arduino-avr-boards-1-8-1 Everything works fine now with my Raspi zero w / Dragino shield (gateway) and Arduino Uno / Dragino 1.4 shield (node)
Have you ever experimented with AX. 25 packet radio or APRS? I've been experimenting with those recently. APRS is networked all over the world. Typically used for gps tracking and weather station telemetry but there are protocols to send other messages and even email as well! Have to have an amateur radio license though. But it's not hard to get one :) I believe the APRS frequency for Europe is 144.8 MHz, is 144.390 in the US
Andreas Spiess, Oh nice! I thought i saw a uv5r in one of your videos... I should have known :) My callsign is KM4MLS, only had my license for a little over a year but it's so much fun for me. I like experimenting.
Very informative video to know about lora . But I have one doubt. In one paper about lorawan, it has been mentioned that SX1276 chips works in the frequency range of 137-1020Mhz whereas the SX1278 chips works in the frequency range of 137-525Mhz. Which hardware component inside the chips selects the respective frequency of the chips? Please reply.
You have to add hardware on the outside which defines the frequency range. Look at the modules. They only have a small frequency range even if the chips have a big one.
Very good explanation - since a long time I look for a solution to get data from the client to ttn-console. There no traffic is shown and I am wondering about the blinking wireless lamp at the LG01 ...
Hi Andreas, I notice that your Arduino code is missing quite a bit of code. I have installed the MCCI_LoRaWAN_LMIC_library and used the ttn-abp.ino example scetch initially on my Uno. What found was after days of trying it just would not work. Then the penny dropped and I actually read the errors from the compiler and realised the Uno didn't have enough memory to store the code. I switched to an Arduino Mega and problem solved.
Hi. I have a measurement sensor of six electrical variables. How can I link to sensor varialbles on the HelloWorld.ino archive? Thanks for your answer. Greetings from Medellín Colombia.
Dear Andreas,,so the limitations of the fair Access Policy is applicable for between Lora node and Gateway only . NOT between node to node communication . kindly let me know my understanding is right or wrong. Thank you looking forward to your reply
You have to distinguish between LoRa as a physical layer (connection between two devices over the air and LoraWan. LoRa as physical connection only has the legal limitations of 1% air time (in Europe). I never talked about LoRa itself. I always talked about LoRaWan, which is an extension of LoRa as a physical connectoon. It does not forsee any communications between nodes, only between node and gateways. And there, the fair usage policy applies (in addition to the legal requirements). However, for the moment, these limits are not enforced ;-)
i want to know the maximum distance your own module would be able to send data to your gateway. and how to build a gateway with a very large range like the ones the country use to cover up areas.
Thank you for all that you do sir!! I just built a Raspberry Pi-4 based Gateway using the Rakwireless Rak2243 HAT. I have registered my Gateway with TNN and following this blog wanted to create an Application, however I can't find the Access Keys that you show in your video. Maybe things have changed in 6 months?
Thank you!! Yes I found your newer post. I am still struggling a bit with the differences between the LoRaWAN v2 and the newer Stack. No legacy box, no ABP, etc, but I am confident I'll be successful soon, thanks to your amazing videos!
Great videos sir, One question, in this video how does lora sensor knows that to which gateway it has to spit data to? Because we have not provide EUI of gateway to LoRa sensor. Love from 🇮🇳 India
Hi Andreas, thanks for that cool video and the detailed description. Unfortunately, I cannot even compile the examples from the LMIC library. I'm getting "undefined reference to `table_get_u4'" and a couple of other undefined references. Where can I start looking how to proceed? Thanks again!
Hi Andreas, I don't want to connect to TTN. I need my master node control or send wake signal to atleast 200 slave node (local network) every slave node is battery powered. Which device will be best for my solution and faster prototyping. Thanks
Thank you very much for the video. It has helped me a lot. I have a question regarding this.I am working on this LoRa project. Is it possible for the dragino Lora shield to directly send the data to the TTN gateway without the need for a physical gateway?
As Andreas Spiess Mentioned, you need a gateway to connect to TTN ...BUT... it does not have to be your own gateway. If your node is able to reach a TTN gateway from someone else you can transmit your log as well.
At 9:44 you create a fake Device EUI and at 10:23 it changes to another number. Is that important? What happened? Is that number irrelevant with the ABP method?
i bought 2 lora modules one is working on 915mhz band and the other one is working on 868mhz band, they both can communicate with each other however you said that they should be on the same frequency band, how'd you explain that?
Maybe you look at the program driving the two boards. Then you will discover that they use exactly the same frequency. The boards have filters that fit the 915 or 868MHz range, but the frequency is defined by the program.
@@AndreasSpiess Thanks for the assistance Andreas, i wouldn't had do it without your channel, this year i'm going to graduate and my project is all built in LoRa, i've even included your channel's name on my book as a source.
Hi Andreas, Great tutorial and very informative however I just have a question about the libraries. I followed your tutorial and when it comes to the compiling the code on arudino an error message appears about the libraries. I have added in all the libraries in the library section but just wondering if you may have any idea. The error code exactly is "hal/hal".
Thanks sir about these wonderful work, but i would ask you, When we want a design that fulfills our requirements regarding preventing collisions for the transmitted data when sending, if it is possible to explain the design steps with explanations such as the existing video?, with mentioning the codec used to implement it, thank you very much, sir.
Andreas... TTN shows my gateway is "connected"... responding ever 30 seconds in sync with what I am seeing on Raspian Linux command line feed. I was able to successfully (after multiple tries) to upload Thomas Telkamp's "sketch" to the Arduino node after modifying the pins and session keys (Note: your version kept throwing errors for me). Question now is how do I tell if the node is transmitting and being received by the gatesway maybe 30 inches away? There is nothing happening on the TTN console at this point, so I am guessing no data is being sent from the node.
Sorry for not coming back. I missed your post between many others. The only thing is to test one after another. Forst, the node, then, the gateway protocol, and finally the TTN backend. It is important, that your node and your gateway is on the same frequency and the same SF, if you use a single channel gateway. Otherwise, it will not connect even in close proximity.
Hey, I'm just trying to run a private ThingsStack network in my local network. I was able to setup the gateway to my server but upon registering a device it asks me for MAC Layer and PHY Layer. How do I get these? What am I supposed to use. Couldn't find anything on the web.
Thanks for this great lesson, now my Dragino finally works! I have a question about the Device EUI, on 9:51 it shows 12 34 ... and on 10:23 it has changed to 00 17 ... In my case it is still 12 34 .... Is this an important setting and how did it change in your instruction? Hope to hear from you, thanks!
Nice. But one question: if i am not wrong you are not building a gateway here but rather a node. You use TTN gateway. So why do you say "make sure your node is nearest your gateway, in my case is only few cm away"?
got it. Hence in the picture you have showed the other component (not the Arduino component) within the red square is a Gateway? If so, it is not clear if there is an antenna like the one a Gateway should have.
Instead of the IC880 based LoRa gateway, Can I use " The things Gateway " which is easily available. Does the LoRa end node work with this gateway or do I need to make any change in the transmitting section ( I mean in the LMIC Library). If I am using 'things gateway, after activating the gateway, can I just use it. Please reply.
Hello I am trying to change data rate to DR_SF12 with the code ( LMIC_setAdrMode(0); LMIC_setDrTxpow(DR_SF12, 14);) but I could not see the change on things network somehow It is sf7bw125 all the time. Did you try it ? if you could, how did you do it ?
Love your UA-cam videos Andreas. I've been trying to setup a LoRa gateway (single channel) and the same Arduino and Dragino boards as in this video .... but can't get messages across! I've checked the SF (set to 7) on both, and both *look* like they're working (no error messages, TTN shows 'connected', etc) but the device shows as 'never seen' and no data shows! Any ideas?
Maybe you go with your transmitter to a place with a known Gateway and try it out. Then you at least can see if the transmitter or the gateway is the problem. You find all operating gateways on the TTN page.
At 11:48 minutes you talk about sf12 and sf7 can I change it in the arduino script to get much longer distance or it is automatically changed from one value to another related to gateway distance?
Hello Andreas, I have a huge problem about how to select the class of LoRaWan and how to set time interval between first message and second message. I've already use time interval for 60 but my message from node to the gateway always 8 minute apart for message to message. Also I would like to know if there is any possible for me to use BW=250KHz for my device, I lived in Thailand and using AS923
Hey Andreas! With your help I've got the first gateway up and running in my State in the US. I currently using your Cheap Lora Gateway and I'm struggling to get the Node Connected. Do you know if any of your steps would change in the Github code if you were located in the US? When I go to the matthijskooijman/arduino-lmic library and use their TTN-ABP code with the pins you assigned and my own created NWKSKEY, APPSKEY and DEVADDR nothing happens on the TTN site. When I use the Serial Monitor I get : Starting Packet queued 131148: EV_TXCOMPLETE (includes waiting for RX windows) I'm pretty lost and any assistance would help. Thanks!
I suggest you go to the forum of the TTN network. There are some specialists which can help you, also some from the US. If I remember right the IP address was different in different geographies, but I am not sure if this is the reason for your problem.
Hi very good video and tutorial ! I tried your example but I only get one package to TTN after Arduino reset I can´t understand why ? I don´t use the dragino shield and made my own circuit board I only connected the SPI pins through level shifter. I left the reset and DiO pins floating from my RFM95W board is that the problem ? Thanks for your answer.
It works with ABP as well, you need to create an end device manually and expand the "Show advanced activation, LoRaWAN class and cluster settings" section. There you can switch to ABP
hi andreas, i created a lora node using arduino and sx1276. i uploaded the sketch successfully but i simply get nothing in the ttn console. why do you think that is?
This can have multiple reasons and unfortunately, I cannot do remote debugging. I would try to follow your message and check if it arrives on your gateway and if your gateway is visible on TTN. Then I would check all keys.
Hello Andreas, Thanks for the video. I successfully connected to a TTN gateway but strangely the initial "hi" translated somehow in a lot of other alternatives than the expected 6869 (379C, D3CE, BD46, 9938 ...it seems to try all possible hex combinations) although I do not have any decoder or converter function setup. Any idea about the reason for that erratic behaviour ?
Andreas, I set up the sketch for the Lora node just as you suggest in the video, word for word. I find that the transceiver initiates but cannot find the gateway. TTN indicates that gateway is connected. I get the message: Executing Exit 1. Is there anything you can suggest?
Hi there, I have tried to rebuild the project by myself. Sadly I get this outpput: Starting... FAILURE ...\Dokumente\Arduino\libraries\IBM_LMIC_framework\src\lmic adio.c:689 Any ideaswhat could be wrong?
Thanks andreas, another great video.Question: canyou guide me to a video on which you have shown compiling and uploading sketch to the arduino? Or you can just say the software i need on my vomputer, and commands commands here? If you do so i greatly appreciate you.
wait so with this you can't connect two LoRa's to eachother without internet?? i'm in need to transfer a single line over a decent distance via radiosignals but it will be in an area without internet.
Hello Andreas, I just noticed a problem on my Dragino LoRa Shields. U2 pins 1,4,7,10 and 13 are not connected to ground. Also pins 4 and 10 of U1 are also no connected to ground. These are V1.4 boards. Do you have the same issue on your boards?
Well if you get unexpected results from your device then you can check the 5 to 3.3 V converters because some pins are not connected on V1.4. Dragino is aware and are going to send me replacements.
sir, excellent explanation @high level! was not actually in a detailed. do you have a video to explain in complete detailed version including the software/script loading etc. thanks in advance!
@@AndreasSpiess Thank you for your reply. So I am confused if these LoRa module (433 MHz) are just useless or still I can utilize it on chip stack or elsewhere?
hello!! please my gateway work and my node also but no communication!!! i cant receive pck RSSI in the gateway! what is the preblem!! can you help me please?
Remote diagnosis is usually not possible. Maybe you try to isolate the problem first. If you know somebody with a running node or gateway maybe you try using these. Then you know if the problem is the gateway or the node. You find all TTN gateways around you on the TTN homepage.
In 14 Minutes you made the LoRa mystery unfold. Thank you and I look forward to catching up on this series. You are a natural teacher.
Thank you for your compliment!
Stellar work Mr Spiess. Can't wait until next episode.
Hi Andreas! Great to see all the awesome content about using LoRaWAN and The Things Network.
We’ve released a new version of our network server, and we'd like to work with you to refresh some old content so it aligns with The Things Stack (the old network server is being sunset). What's the best way to reach you?
Andreas...The number of things that could go wrong in setting up a Lora node is staggering! Even setting up parameters on the website looks complicated. Thank you for sharing your knowledge. Great content well presented!
Actually, for me, the pins were the most difficult thing. Now, everything should work with the video
Agree the pins make me crazy, always failed arduino-lmic-master/src/lmic/radio.c:689 ;(
It is amazing to see how this video and #115 has given me (three years later) two fundamental aspects to get my 1-channel gateway and my node to work on TTN. Subtle but remarked details that I have not found in any how-to I have followed up! Thanks Andreas!!!! :)
Glad it was useful after this time!
Great video, I was scratching my head for a few hours trying to figure out how I could run the Dragino LoRa shield. Then I stumbled upon this video... Explanation was very good, I managed to make it work. Thank you!
Glad I could help!
Since I'm putting up my LoRa shield, this is a nice recap. So sad to find out that I already forgot so many details from the first time I saw this video. Fortunately we have UA-cam and all your videos available... ;-)
You probably will see a lot of problems with V3 and deep-sleeping your node. I am working on a video and right now do not have a proper solution :-(
great video Andreas, I think you cleared up the difference between the various modules, especially the rfm95 and the rfm69 verywell.
Having said that, for most people LoRa is just about connecting something over a distance and then it doesnt need to be 'LoRa' enabled, as long as one has similar ttransceivers at both ends.
The shield you use is indeed very neat and handy as an (almost) straight out of the box solution. I have been deliberating using it, but the hardwiring of the cs to pin 10 was a bit of a minus to me, but I would definitely recommend that one if one is looking for an easy entry into Lora
Thanks for the feedback! I think, currently, for most people, a "private" network is sufficient, especially if they do not have a gateway round the corner...
Thank you for the hard work. It saved me so much time, and finally I can play around with LoRa
Thanks for your feedback!
Tx a lot Andreas. For the record, my Dragino is v1.4 and is connected to a Multitech Conduit AP that works as a Network Server (then I take out the data consuming a ws with Node Red)
Thank you for sharing your project!
I had to update my version of Arduino IDE to the latest version 1.8.x from arduino.cc - before I had compiler errors!
now it sends messages to a gateway in Zurich ETHZ - 10 km from my home. Great! Thanks for such great instructions!
Thanks for the feedback!
Fantastic work Andreas, can't wait to see what your outcome is with LoRa and what your end goal is.
Thanks! The end goal is to die. But before, I have lots of fun trying new stuff ;-)
Andreas Spiess I like your view on life ;) I bought a few sonoff products, including the wall switch only to find that my wall switch doesn't have a negative wire... only the live switch wire! Only solution I can think of is putting a negative wire down trunk from the attic. :(
Strange laws in your country...
Andreas Spiess I don't think the Irish took their construction industry very seriously to start off with, the return wire just went back to the box with all the lights of the house on one fuse :)
They survived more severe situations there...
This is awesome Andreas, very cool and useful. Look forward to the outdoors testing.
:-)
Over 4 years later and everything still works great even with the new V3 TTN!
Fortunately there was not a lot of innovation ;-)
@@AndreasSpiess I only encountered one issue, after sending 2-3 messages, ttn stops receiving/accepting messages, even though the gateway logs show messages coming from the Arduino
The session counter does no more work the same as in V2. Maybe you watch my V3 videos...
@@AndreasSpiess Ok I'll check it out. I'll give the Arduino shield another try after I watch it.
thanks again for another great Lora video, your video saves me hours of time! (maybe days) :)
This is exactly the purpose. Glad that it works...
good video Andreas, it's a bit difficult to understand 100% since I do not know much English but there we are, thanks for taking the time to make these videos.
Greetings from Peru (y)
I do not know Spanish at all! And I hope I speak slow enough for you to understand.
Another excellent episode. :-)
I am using dragino Lora shield for my node, but its Antenna is not good. Could you tell me what kind of Antenna you have used in this video!
Thank you.
Regards from Germany
Great job as always!! Thanks for all your good works.
You are welcome. I am also motivated by such comments.
I'm doing some experiments with this ttl module: E30-TTL-1W. This brand also have some LoRa versions of this chip.
Thanks for the feedback. This is more a module. And they seem to use different chips inside. If the modules "speak" LoRa, you find the usual suspects from Semtech (SX12...).
educational. keep them coming. was planning to do exactly the same, after the same reasoning, but the module never arrived... damn.
You should move to a *civilized" area ;-). Or you get the modules from Adafruit. Maybe there, the delivery is better.
Excellent research and great explanation again Andreas!
BTW, I think your English is better than mine now :-)
Thanks. I try my best!
hi Andreas I am new to LoraWan. I would like to know why I upload the lmic-abp file to the 433MHz lora shield with entering the network section key, app section key and devaddress. When I open the serial monitor of Arduino , it stucks and loop in packet queued and EV_TXComplete ( includes waiting for RX windows) while the ttn shows not connected of my device.
Note that my gateway is lg-01 p which is function at 433mhz. I registered a 868Mhz frequency plan at ttn and it shows that is connected
I cannot do remote diagnostics (too difficult). But I am sure you will find the problem yourself.
#define GREENLED 3
#define REDLED 8
#define SFSWITCH 4
#define RUNPIN 5
How to connect these pins?
What are you using these pins for?
The LEDs show the different states. You have to connect a LED with a series resistor.
Hi Andreas! Thanks for all the content about LoRaWAN This and others videos help me a lot, even in TTN v3.
I trying to make a node with the same shield (Dragino Lora Shield v1.4) because I need to send some raw data (a lot of bytes that represent an "string message"). I'm using and arduino mega with the lastest version con MCCI LMIC Library and for my location I'm using AU915 frecuency plan. At the time I can send a custom uplink message, but I have 2 questions:
1) I don't understand, Why this device can only be activated by ABP?
2) How can I send a downlink to this?
Greetings from Chile
1. You have to choose OTAA in your code. The newest version of MCCI should support it
2. Your program has to support downlink. From the console, you can send a message. The newest version of MCCI should support it. Maybe you google.
Thanks again for a great video!..Personally I think I'll have to view a more of you videos before trying to jump into that area ;-)
+Walter Steinchen That's why I do it! You can lean back and decide later;-) One for all...
Andreas, thank you for all your videos. They are great, very educational and clear, congratulations. BTW, is it hard to use the data generated from the sensor nodes, in a webserver? i.e. put it into a sql DB?
You can watch my video about node-red. There, I show one possibility. I am not a web programmer.
Thanks Andreas (y)
Thank you for this very informative video, Andreas!
You are welcome!
Thanks for another great video Andreas :) The range test will be very interesting :)
I am also curious...
Thank you Andreas! Thank you very much. Excellent tutorial! Before you climb up to that hill, you probably have noticed that you have a 915 MHz Dragino LoRa Shield ua-cam.com/video/duwUwXt-hs8/v-deo.htmlm38s It works at 868 MHz, too, but probably isn't optimal for a range test.
No, no. It was delivered as that, but I changed the module. (And I got the money back). No worries. I maybe should have changed the mark, too.
OK, I remember that you told about such a device :-) If you have an RFM9X module (with an sx1272 or sx1276 chip) there, it would be interesting to know, how a simple wire antenna would do there on the hill. If I here place a 868 MHz transmitter into my freezer and wait few minutes my factory made Dragino LoRa Shield (with its RFM95W module and SMA connected antenna and in the room temperature) stops to hear the transmissions. But my plain RFM95W module with an ordinary 8.2 cm wire antenna still catches all the transmissions. learn.adafruit.com/adafruit-rfm69hcw-and-rfm96-rfm95-rfm98-lora-packet-padio-breakouts/overview?view=all#wire-antenna
Strange. Are you sure you use a 868 MHz antenna. The 2.4 GHz antennas look very similar and I also got a 2.4 GHz antenna with ma GPS module (which is on 1.5GHz)...If so, the difference would be explainable.
Things are coming together! Thanks for the video.
You are welcome!
It amazes me how much is out there these days with regard to wireless connectivity. What I have yet to find, though, is anything that talks about how far you can go over various kinds of wires. Like RS232 (at real RS232 levels), TTL levels, SPI, I2C, and all sorts of other stuff. I have coax, twisted pair, and so on to mess with. How far away can you put a sensor from a microcontroller? How far can two microcontrollers be from each other and still talk to each other, using what method? Assuming that I did go wireless at some point, how to choose which of the many ways to use?
That is not easy. I once made two videos about wireless basics. Maybe these help?
Hi Andreas, great video with all the relevant explanations and a lot of tricks and useful information alongside the core content. It seems TTN server has changed however and details look different. I can't see the DEVADDR and a number of differences on the server backend. Is there a plan to update the content?
Maybe you watch my TTN V3 update video?
Besten Dank für das Video! Super erklärt und sehr Hilfreich, ...endlich eine erfolgreiche Verbindung zum TTN :-). Grüsse aus der Schweiz.
Super dass es geklappt hat!
Thanks for a very clear and informative video. Best Wishes. Arthur
You are welcome!
I just love your channel and i always come back if i have to remember to one or the other fact
Question: is the lmic library from your video still the one you recommend? Its is now 4 years old!
I would go to the TTN forum to find the newest version. Maybe I have to do an update...
@@AndreasSpiess Andreas thanks for all your videos they are all very interesting and informative. For some weeks I've been experimenting with two LoRaWan nodes, (Nano+RFM95 the other a Heltec ESP32 module with LoRa). Both are working as expected, apart from terrible range. I'm getting about 1.5km. Terrible I hear you say, after your world record. I noticed in a comment in Matthijs Kooijman library he thinks the modules are not responding to the TX power settings set in the library. I was wondering if you've experienced any range and power issue brought about by the library? I have 5dBi gain antenna attached to each module and have tested against commercial outdoor Gateways. Each time just 1.5km range. All this suggests my LoRaWan nodes are at fault. Unfortunately, I don't have access to a spectrum analyser to measure the output power.
Very good resourceful video.
Can lora nodes be used with Raspberry pi instead of Arduino? Does software support already exist for it or code needs to be written newly?
Most of the video in the internet use arduino or some other microcontroller as lora node but not the raspberry pi thats why i got this doubt.
I would not use a Pi for a node because it consumes too much energy. LoRa generally is for low power applications.
Love your videos - these are a HUGE resource for me
Glad you like them!
Dear andreas why you used frequency 915Mhz?..for Europe we must provide dragino at frequency 868Mhz right?
868 MHz for Europe is right. 915 is for the US.
Hey Andreas, richtig gutes Video!!! Alles drin, was wichtig ist. So hat es bei mir geklappt. Vielen Dank dafür!
Gern geschehen!
Seems like I can't order the iC880A-SPI concentrator board in North America 915Hz... any replacement options?
There are many commercial LoRa gateways available. Look at Mikrotik, for example.
Hello Andreas
Thanks for one more wonderful explanation of LoRa. I just upgraded to Arduino IDE ver. 1.8.10 and had the error "Multiple libraries were found for lmic.h". No more compilation and upload to the Uno was possible. The solution is here: www.bountysource.com/issues/81344485-unable-to-compile-lmic-lib-with-arduino-avr-boards-1-8-1
Everything works fine now with my Raspi zero w / Dragino shield (gateway) and Arduino Uno / Dragino 1.4 shield (node)
Thank you for the link.!
Thank you Paul , i really was stuck on that issue
Have you ever experimented with AX. 25 packet radio or APRS? I've been experimenting with those recently. APRS is networked all over the world. Typically used for gps tracking and weather station telemetry but there are protocols to send other messages and even email as well! Have to have an amateur radio license though. But it's not hard to get one :) I believe the APRS frequency for Europe is 144.8 MHz, is 144.390 in the US
No, I did not (even if I have a license since 40 years).
Andreas Spiess, Oh nice! I thought i saw a uv5r in one of your videos... I should have known :) My callsign is KM4MLS, only had my license for a little over a year but it's so much fun for me. I like experimenting.
:-)
amprnet was great too, but for IoT I believe we have better options now.
73's - PU2KMB
Denys Sene, definitely; I didn't mean to imply using it for IoT. Packet collisions are bad enough with just the aprs trackers' traffic.
Very informative video to know about lora . But I have one doubt. In one paper about lorawan, it has been mentioned that SX1276 chips works in the frequency range of 137-1020Mhz whereas the SX1278 chips works in the frequency range of 137-525Mhz. Which hardware component inside the chips selects the respective frequency of the chips? Please reply.
You have to add hardware on the outside which defines the frequency range. Look at the modules. They only have a small frequency range even if the chips have a big one.
Very good explanation - since a long time I look for a solution to get data from the client to ttn-console. There no traffic is shown and I am wondering about the blinking wireless lamp at the LG01 ...
If no resullt are coming you have to debug teh whole route, one after the other...
Hi Andreas, I notice that your Arduino code is missing quite a bit of code. I have installed the MCCI_LoRaWAN_LMIC_library and used the ttn-abp.ino example scetch initially on my Uno. What found was after days of trying it just would not work. Then the penny dropped and I actually read the errors from the compiler and realised the Uno didn't have enough memory to store the code. I switched to an Arduino Mega and problem solved.
Thanks for sharing your experience!
Hi. I have a measurement sensor of six electrical variables. How can I link to sensor varialbles on the HelloWorld.ino archive? Thanks for your answer. Greetings from Medellín Colombia.
You have to put them somehow into a string. Either use the Arduinojson library or google the commands to do that.
Dear Andreas,,so the limitations of the fair Access Policy is applicable for between Lora node and Gateway only . NOT between node to node communication . kindly let me know my understanding is right or wrong. Thank you looking forward to your reply
You have to distinguish between LoRa as a physical layer (connection between two devices over the air and LoraWan. LoRa as physical connection only has the legal limitations of 1% air time (in Europe). I never talked about LoRa itself. I always talked about LoRaWan, which is an extension of LoRa as a physical connectoon. It does not forsee any communications between nodes, only between node and gateways. And there, the fair usage policy applies (in addition to the legal requirements). However, for the moment, these limits are not enforced ;-)
Vielen Dank! Dank dir habe ich meinen ersten Frust überwunden. Daumen hoch.
Bitte, gern geschehen!
i want to know the maximum distance your own module would be able to send data to your gateway. and how to build a gateway with a very large range like the ones the country use to cover up areas.
I made several videos about the coverage of LoRa.
Thank you for all that you do sir!! I just built a Raspberry Pi-4 based Gateway using the Rakwireless Rak2243 HAT. I have registered my Gateway with TNN and following this blog wanted to create an Application, however I can't find the Access Keys that you show in your video. Maybe things have changed in 6 months?
Maybe you watch my newest video about the matter?
@@AndreasSpiess Do you have a newer link than #117 sir?
Thank you!! Yes I found your newer post. I am still struggling a bit with the differences between the LoRaWAN v2 and the newer Stack. No legacy box, no ABP, etc, but I am confident I'll be successful soon, thanks to your amazing videos!
Great videos sir,
One question, in this video how does lora sensor knows that to which gateway it has to spit data to?
Because we have not provide EUI of gateway to LoRa sensor.
Love from 🇮🇳 India
It does not need to know. All gateways receive the message.
very detailed. thanks for posting.
:-)
Hi Andreas, thanks for that cool video and the detailed description. Unfortunately, I cannot even compile the examples from the LMIC library. I'm getting "undefined reference to `table_get_u4'" and a couple of other undefined references. Where can I start looking how to proceed? Thanks again!
I used Platformio instead of the Arduino IDE and there it worked perfect! Danke Dir!
Maybe you go to the TTN Forum to get the newest instructions. This video is quite old.
interesTing and useful
and prevents me to buy the wrong stuff!
Thanks. It is wrong since a few episodes, and now, two guys "discovered" it. Next episode, it should be corrected.
so you missed my previous hint :-)
Now and them i admire you Swiss people, that there is no "ß" in your alphabet.
But we have the french part which occupies quite some keys on our keyboards
Thanks a lot Mr. Spiess for your brilliant Videos !!
I have a Similar system from Dragino. Any ideas to upgrade this project ?
I would no more build nodes like that. I would use a board with a built-in Lora chip.
@@AndreasSpiess thank you fir replying. My system also has two lora shield nodes and two Arduino Uno with single channel lora gateway.
Hi Andreas, I don't want to connect to TTN. I need my master node control or send wake signal to atleast 200 slave node (local network) every slave node is battery powered. Which device will be best for my solution and faster prototyping. Thanks
Then you probably need direct LoRa connections. Not a simple task.
Thanks so much for this great video. Helped me a lot.
You are welcome!
Thank you very much for the video. It has helped me a lot. I have a question regarding this.I am working on this LoRa project. Is it possible for the dragino Lora shield to directly send the data to the TTN gateway without the need for a physical gateway?
You mean does it work without the raspberry pi gateway?
You always need a gateway to connect to TTN
As Andreas Spiess Mentioned, you need a gateway to connect to TTN ...BUT... it does not have to be your own gateway. If your node is able to reach a TTN gateway from someone else you can transmit your log as well.
At 9:44 you create a fake Device EUI and at 10:23 it changes to another number. Is that important? What happened? Is that number irrelevant with the ABP method?
Bonjour Andreas,
je voudrais savoir comment déclencher le TX manuellement par bouton ou un contacteur de porte,
Merci
i bought 2 lora modules one is working on 915mhz band and the other one is working on 868mhz band, they both can communicate with each other however you said that they should be on the same frequency band, how'd you explain that?
Maybe you look at the program driving the two boards. Then you will discover that they use exactly the same frequency. The boards have filters that fit the 915 or 868MHz range, but the frequency is defined by the program.
@@AndreasSpiess Thanks for the assistance Andreas, i wouldn't had do it without your channel, this year i'm going to graduate and my project is all built in LoRa, i've even included your channel's name on my book as a source.
Hi Andreas,
Great tutorial and very informative however I just have a question about the libraries. I followed your tutorial and when it comes to the compiling the code on arudino an error message appears about the libraries. I have added in all the libraries in the library section but just wondering if you may have any idea. The error code exactly is "hal/hal".
This video is quite old. Maybe you search for the newest libraries. I cannot keep all my video description updated :-(
Thanks sir about these wonderful work, but i would ask you, When we want a design that fulfills our requirements regarding preventing collisions for the transmitted data when sending, if it is possible to explain the design steps with explanations such as the existing video?, with mentioning the codec used to implement it, thank you very much, sir.
This protocol is not made for that. You would have to program your own.
Andreas... TTN shows my gateway is "connected"... responding ever 30 seconds in sync with what I am seeing on Raspian Linux command line feed. I was able to successfully (after multiple tries) to upload Thomas Telkamp's "sketch" to the Arduino node after modifying the pins and session keys (Note: your version kept throwing errors for me). Question now is how do I tell if the node is transmitting and being received by the gatesway maybe 30 inches away? There is nothing happening on the TTN console at this point, so I am guessing no data is being sent from the node.
Sorry for not coming back. I missed your post between many others. The only thing is to test one after another. Forst, the node, then, the gateway protocol, and finally the TTN backend. It is important, that your node and your gateway is on the same frequency and the same SF, if you use a single channel gateway. Otherwise, it will not connect even in close proximity.
Hey, I'm just trying to run a private ThingsStack network in my local network. I was able to setup the gateway to my server but upon registering a device it asks me for MAC Layer and PHY Layer. How do I get these? What am I supposed to use. Couldn't find anything on the web.
I never tried that. So I do not know.
What if you need more than the Things Network Policy Fair Access Policy? Is it as simple as using more device keys / application keys for one device?
I do not know for the moment.
Hi dear sir! Due to the shortage of chips, I have to buy the old shield v1.2 not the latest v1.4, Will there be a big gap between the two versions?
I do not know, I do not own a new shield
Thanks for this great lesson, now my Dragino finally works! I have a question about the Device EUI, on 9:51 it shows 12 34 ... and on 10:23 it has changed to 00 17 ... In my case it is still 12 34 .... Is this an important setting and how did it change in your instruction? Hope to hear from you, thanks!
I think I explained the two different activation methods. You only chose one.
Thanks Andreas! Keep up the good work and I can't wait to see your video about the TTGO Lora32 OLED V2 ;-)
Will take a while ;-)
After all these years could this Arduiono LoRa project still be compatible with the newer TTNv3 protocol ?
Maybe you watch my V3 migration video?
I would like to know if LoRa can be implemented onto a vehicle? will the moving vehicle at certain speed disrupts the signal...?
Not the speed, but probably the lack of line of sight between the sender and the receiver
Nice. But one question: if i am not wrong you are not building a gateway here but rather a node. You use TTN gateway. So why do you say "make sure your node is nearest your gateway, in my case is only few cm away"?
What I meant is that you need a gateway, either one which is already in your neighborhood, or one you built yourself.
got it. Hence in the picture you have showed the other component (not the Arduino component) within the red square is a Gateway? If so, it is not clear if there is an antenna like the one a Gateway should have.
There are more videos about Lora, also about the different gateways available on this channel
Instead of the IC880 based LoRa gateway, Can I use " The things Gateway " which is easily available. Does the LoRa end node work with this gateway or do I need to make any change in the transmitting section ( I mean in the LMIC Library). If I am using 'things gateway, after activating the gateway, can I just use it. Please reply.
It should work without changes.
Hello I am trying to change data rate to DR_SF12 with the code ( LMIC_setAdrMode(0);
LMIC_setDrTxpow(DR_SF12, 14);) but I could not see the change on things network somehow It is sf7bw125 all the time. Did you try it ? if you could, how did you do it ?
I tried it once a few years ago and it worked. But not with the newest libraries.
Love your UA-cam videos Andreas. I've been trying to setup a LoRa gateway (single channel) and the same Arduino and Dragino boards as in this video .... but can't get messages across! I've checked the SF (set to 7) on both, and both *look* like they're working (no error messages, TTN shows 'connected', etc) but the device shows as 'never seen' and no data shows! Any ideas?
Maybe you go with your transmitter to a place with a known Gateway and try it out. Then you at least can see if the transmitter or the gateway is the problem. You find all operating gateways on the TTN page.
I also got the same, Have you got solved this?
"From a hill near my home" As I am from the lowlands I am sure your 'hill' is a fair size higher than our highest mountain
It is 633 meters above sea level. Really just a hill. But for LoRa, relative height is more important...
At 11:48 minutes you talk about sf12 and sf7 can I change it in the arduino script to get much longer distance or it is automatically changed from one value to another related to gateway distance?
You have to change it in the node software
Hello Andreas, I have a huge problem about how to select the class of LoRaWan and how to set time interval between first message and second message. I've already use time interval for 60 but my message from node to the gateway always 8 minute apart for message to message. Also I would like to know if there is any possible for me to use BW=250KHz for my device, I lived in Thailand and using AS923
There is a built-in delay to respect the law. If you want to change it you have to dig into the library code.
Hey Andreas! With your help I've got the first gateway up and running in my State in the US. I currently using your Cheap Lora Gateway and I'm struggling to get the Node Connected. Do you know if any of your steps would change in the Github code if you were located in the US?
When I go to the matthijskooijman/arduino-lmic library and use their TTN-ABP code with the pins you assigned and my own created NWKSKEY, APPSKEY and DEVADDR nothing happens on the TTN site.
When I use the Serial Monitor I get : Starting
Packet queued
131148: EV_TXCOMPLETE (includes waiting for RX windows)
I'm pretty lost and any assistance would help.
Thanks!
I suggest you go to the forum of the TTN network. There are some specialists which can help you, also some from the US. If I remember right the IP address was different in different geographies, but I am not sure if this is the reason for your problem.
Hi very good video and tutorial ! I tried your example but I only get one package to TTN after Arduino reset I can´t understand why ? I don´t use the dragino shield and made my own circuit board I only connected the SPI pins through level shifter. I left the reset and DiO pins floating from my RFM95W board is that the problem ? Thanks for your answer.
There is a counter on TTN which has to be switched off.
Hello. Currently the TTN only allows the OTAA method. What changes should I make to the code to make it work? Thanks
You have to check if your library also offers OTAA and change it accordingly. Otherwise you have to rewrite your sketch.
It works with ABP as well, you need to create an end device manually and expand the "Show advanced activation, LoRaWAN class and cluster settings" section. There you can switch to ABP
hi andreas, i created a lora node using arduino and sx1276. i uploaded the sketch successfully but i simply get nothing in the ttn console. why do you think that is?
This can have multiple reasons and unfortunately, I cannot do remote debugging. I would try to follow your message and check if it arrives on your gateway and if your gateway is visible on TTN. Then I would check all keys.
Hello Andreas, Thanks for the video. I successfully connected to a TTN gateway but strangely the initial "hi" translated somehow in a lot of other alternatives than the expected 6869 (379C, D3CE, BD46, 9938 ...it seems to try all possible hex combinations) although I do not have any decoder or converter function setup. Any idea about the reason for that erratic behaviour ?
No. I always got the payload I was sending.
OK thanks! just found the error
Hello It is giving me an error when I am compiling it saying that "exit status 1" Error compiling for Arduino Uno board. Can you help me?
Maybe you have to search for the newest software versions. This is an old video.
why there is a need to connect DIO0 AND DIO1 pins of RFM95 to Dragino shield? Doesn't it work only with MISO AND MOSI?
The sketch needs these pins. It does not work without them
Nice.
:-)
At 13:55 you show how to change it in the script, do I need to change sf only in yellow line or also in the previous?
If I remember right, only there. ( you can search with the text editor if you find it somewhere else)
Andreas, I set up the sketch for the Lora node just as you suggest in the video, word for word. I find that the transceiver initiates but cannot find the gateway. TTN indicates that gateway is connected. I get the message: Executing Exit 1. Is there anything you can suggest?
I would go to the TTN forum. There are experts on the matter which usually help.
Nice video. Is it normal for the lora shield to not light when connected to the arduino uno?
I do not remember
@@AndreasSpiess Turns out our lora shield was fake.
Great videos, I have one question, How many bits (or bytes) per day can someone send with LoRawan?
There is a link to the fair access policy in the comment. There, you find some examples.
thanks!
Hi there,
I have tried to rebuild the project by myself.
Sadly I get this outpput:
Starting...
FAILURE
...\Dokumente\Arduino\libraries\IBM_LMIC_framework\src\lmic
adio.c:689
Any ideaswhat could be wrong?
This is a very old project. I made a video about TTN V3. But aAFAIK this version does no more run on the Arduino UNO
@@AndreasSpiess Meanwhile I got it working. The newer shield has a LA66 chip which need a slightly different programming.
Will this work with a mkr wan 1310 arduino?
Great video. How does one get data from the Lora online App into a local database?
Maybe you watch my other videos about LoRa?
Dear Andreas. Many many thanks. Now I'm in love with your accent :). Really nice explanations and jod job. Congrats
Thank you for your nice words!
Thanks andreas, another great video.Question: canyou guide me to a video on which you have shown compiling and uploading sketch to the arduino?
Or you can just say the software i need on my vomputer, and commands commands here? If you do so i greatly appreciate you.
You find these videos using google. I do no more use them, so I do not know ;-)
Maybe this helps? www.sensorsiot.org/installing-the-arduino-ide-including-esp8266-support/
wait so with this you can't connect two LoRa's to eachother without internet?? i'm in need to transfer a single line over a decent distance via radiosignals but it will be in an area without internet.
Maybe you watch my video about point to point connections
Hello Andreas, I just noticed a problem on my Dragino LoRa Shields. U2 pins 1,4,7,10 and 13 are not connected to ground. Also pins 4 and 10 of U1 are also no connected to ground. These are V1.4 boards. Do you have the same issue on your boards?
I do not know and cannot easily open the case I built it in. But here github.com/dragino/Lora you find the info about the different boards.
Well if you get unexpected results from your device then you can check the 5 to 3.3 V converters because some pins are not connected on V1.4. Dragino is aware and are going to send me replacements.
+Rolland Jones If I remember right, I had a 1.3 version. I use it now for quite a while as a test node. Without issues.
sir, excellent explanation @high level! was not actually in a detailed. do you have a video to explain in complete detailed version including the software/script loading etc. thanks in advance!
There is a LoRa playlist. Maybe you find what you are searching for.
@@AndreasSpiess , thanks a lot sir!
Hi, I have the same Lora module, but it works on 433Mhz. Would you please let me know how can I edit the code for 433Mhz?
LoRaWAN usually only works on 868 or 915MHz.
@@AndreasSpiess Thank you for your reply. So I am confused if these LoRa module (433 MHz) are just useless or still I can utilize it on chip stack or elsewhere?
@@junaid_qadir You can use them in a 1:1 scenario. Or you can build a satellite ground station as I showed in a video ;-)
@@AndreasSpiess Thank you so much, I appreciate it. You are very kind instructor as always.
Has anyone found a 915 Mhz concentrator for the US market that works with Pi?
hello!! please my gateway work and my node also but no communication!!! i cant receive pck RSSI in the gateway! what is the preblem!! can you help me please?
Remote diagnosis is usually not possible. Maybe you try to isolate the problem first. If you know somebody with a running node or gateway maybe you try using these. Then you know if the problem is the gateway or the node. You find all TTN gateways around you on the TTN homepage.
So what we are looking at here is a very slow, wireless, message limited version of the internet?
I do not think so. As I said in my first LoRa video: It is an extension for a very particular purpose.