Using the 4G Network to Save my Friends Treasures!
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- Опубліковано 30 тра 2024
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Parts list (affiliate links):
nRF9160: www.mouser.de/new/nordic-semi...
Arduino Nano: s.click.aliexpress.com/e/_Dl5...
12V Power Supply: s.click.aliexpress.com/e/_Dd6...
5V Voltage Regulator: s.click.aliexpress.com/e/_DeF...
Capacitors: s.click.aliexpress.com/e/_DmP...
Radar Human Presence Sensor: s.click.aliexpress.com/e/_Dma...
Resistors: s.click.aliexpress.com/e/_Dln...
IRLZ34N MOSFET: s.click.aliexpress.com/e/_DET...
BC547 NPN BJT: s.click.aliexpress.com/e/_DDv...
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In this project we will be using the 4G LTE Network and a Radar Human Presence sensor to create a new and modern alarm system. Due to the 4G Network and LTE-M you can send alarm notifications super fast to your phone, while it costs you pretty much nothing. Combine that with a precise radar and loud siren and you got yourself an awesome alarm system that will protect your treasures ;-) Let's get started!
Thanks to Nordic Semiconductor for sponsoring this video.
0:00 The Problem with Thieves!
1:17 Intro
1:54 Game Plan!
2:31 Siren
3:15 Radar Human Presence Sensor
5:53 LTE 4G Board
8:58 Using the Radar with the 4G Board
9:50 Final Prototype & Testing
11:19 Verdict - Наука та технологія
A potential pitfall for the radar sensors is that they are happy to also detect 1.5m behind the wall! I use it for my smart mirror and it also detects the neighbours in their house which just happens to be behind the wall its on.
We actually tried that out and in our case the radar did not pick us up outside of the garage.
I have a stupid radar activated light in one room in my rented flat. It's hopeless, it often switches itself off while I'm still in the room and can occasionally switch on for no obvious reason.
@@BrianG61UK Sounds like a PIR not a radar imo
@@will16320 It sees through walls and there is no visible PIR sensor, just cloudy white glass lamp shade fixed to ceiling. I think children running on the other side of the wall sometimes sets it off.
@@BrianG61UK Cloudy plastic is a dead giveaway there will be a PIR underneath.. google "danlers flush ceiling occupancy switch" as an e.g. and you should be seeing exactly what is in your spot lights
The main issue i see with this is the power dependence.. If a thief cuts your power, this thing turns off. It might be worth it setting up a small UPS inside the case as well for power in the case the power is cut.
this realy wouldn't be hard to do, just a little lithium battery and a charging circuit.
most thieves are too dumb to cut power. they're just looking for some crack money 😅
You can always have feature creep. This meets his needs for 99% of burglaries. You can protect against infinite scenarios. What if the burglar has a cellular jammer? Do we need backup 433mhz radio? What if they have a radar jammer? This can go on forever
@@asldfkjgl What if they hack the Mosquitto account or manage to freeze the SIM card account? What if the cloud service is not available? It might be down for maintenance or the network may be unreachable.
@@xdevs23 what if the burglar disables the bluetooth radar module? This module has bluetooth enabled and by using the right app, one can happily adjust all settings.
Cool idea maybe, if it was me I would try to incorporate backup battery integration, incase someone cut the wire or you have a power cut etc. Also those switches seem easy to get to? Apart from that great device and I enjoyed watching this.
True
@@greatscottlab Any chance to determine how much will consume to run on a battery backup?
Came here to say this. the obvious color of the box, and big labels on the on/off switch seems a little easy to disarm.
@@vjnobody It still sends the alert anyway though, so it's not like turning it off helps the thief at all.
replace the 12v supply with a car battery and smart tender
7:36 Just a warning, the way you blurred the map location you can easily figure out your exact location, by automatically comparing google maps to the blurred content. You should always use black boxes, or maybe colored pixel noise instead. I can tell it's google maps by the color scheme, and I can tell it's not just noise because the blurred UI elements are where I would expect them to be. But it could easily be done with some Javascript and some image processing.
If someone is really that determined, then they can still get enough location information from the backround(s) in some of his videos.
Not quiet possible
@@mmawad100 But is it *loud* possible?
I would just go full ruben sim and put a black box over the content.
@@mmawad100 How can people from 4-chan track down people through images?
Just a couple of small corrections:
1. The 2G/3G/4G coverage map is incorrect as some countries like Norway have shut down 3G completely (2G still exists as a fallback)
2. The program you showed is Visual Studio Code, which is significantly different from Visual Studio, the latter being much older
Thanks for the feedback
Wouldn't say much older, both are actively in development code is more lightweight while visual Studio is a fullblown IDE
@@Ramog1000 It's older as it has a much longer history.
@@lua-nya Kindly, thanks for your worthless comment!
Kudos!
@@Ramog1000 also code is based on electron, so technically you could say its a browser
1:05 a radar for human presence detection is honestly one of the coolest gadgets you could have
Haha yes. It is pretty cool stuff ;-)
They're super cool and pretty cheap!
But, can they detect a cat in a box?
And why would that be? You don't need such a sensor if there's no people.
@@theabyss5647 Are you certain?
Nice system, but is mounting it next to the door in fluorescent green with clearly marked switches facing the door a good idea?
There is room for improvement ;-)
Rig the switch so that trying to turn it off with the alarm sounding discharges a 4500 PSI air cylinder into some air horns.
@@NiHaoMike64 🤣🤣 yes!
Battery Backup?
Nice big labels telling intruders how to turn it off. Neat!
We will improve that.....
Also no battery backup in case of an power outage and also no sensor on the unit itself/tamper. Thats quite insecure :V
@@greatscottlab If it were me I'd keep the metal toggle switches as a decoy and have a nice big cap solderd to the body so anyone who doesn't know how to properly shut if off will get a good zap when the try the toggle switch.
I think a NFC reader behind the front cover would be a neat stealth way of arming and disarming the unit. Also I presume that LTE board can receive data just as well as it can send data, It would be nice to be able to remotely arm the unit in case you forget when you leave or remotely disarm the unit for a friend if you happen to be out when they come by to borrow a tool.
@@curtisjmurphy Booby traps in general aren't legal. Trying to harm potential criminals is not worth the legal risk.
They'll never figure it out in time
Just want to say that your videos, on top of being great (like you... I can tell by the name), also make me happy when I'm sad by your amazing projects and energetic tone trought each and every video.
Keep up the good work, it's very inspiring, and I'm sure I'm not the only one who thinks that!
Awesome update to a previous project! Loved it!
The Nordic Board looks interesting. I wanted to get into Bluetooth LE for a while now and Nordic also offers Bluetooth microcontrollers. Great to hear that you had a good experience with the LTE board. Maybe I will give them a try in the future :-).
Yep. No complaints. Only thing is that you have to get used to the programming✌️
You can have all that way cheaper.
If you just need BLE then I'd say that any of the ESP32 series microcontrollers will work great for you
@@peepopalaber With what? I'm looking for a 4G version of the SIM800L if you know of anything.
the nRF board might support Arduino framework programming already or soon to come!
As somebody who work myself for an international IoT/M2M telecom operator, we have a lot of customers having this kind of setup (although still with 2G.... so props for using LTE-M). I'd recommend to make some check on the device so that it's always connected to the cloud or that it can atleast ping it. Due to technical maintenance on the cells we send a "CancelLocation" event to disconnect the SIM and perform works and some devices think they still have a PDP session ongoing and keep trying to send MQTT payload and are stuck behind this loop where the operator already closed the PDP session but the device still sees it being open and uploads data without checking if it's acknowledged. Make sure to once in a while send some TCP type of packets and if they don't succeed then fully reboot the device or send the AT command AT+CFUN to reboot the whole module. It's best to fully reboot reboot the module rather than check if the PDP session is still open and try to reopen it. Also You might try to check the NB-IOT technology it's even more light weight incase you want to use it in an area where there's no electricity and you send data only when the module wakes up (coverage is even better than LTE-M) These are my two cents good luck and great video! :)
Great advice, thanks!
@@Mzkysti you're welcome :)
Nordic products are very capable but programming them can be challenging, especially if you do it using nRF Connect SDK which is built on top of Zephyr. Once an arduino port for this board comes out, like it has for other nordic boards, life will get a lot easier and you will see these being used a lot more in hobby projects and products alike.
I can agree that Zephyr (and therefore also NCS) can feel a little overwhelming at first, but from my own experience I can say, that once you get past the setup and get an understanding of how the DeviceTree and Driver configs/overlays work, the rest really becomes pretty simple and really efficient to work with (especially with the ton of samples they provide).
It's fun to see things such as the radar sensor from previous videos being put to good use.
Only thing its missing is a battery backup for when the power goes out, Altronix makes some great ac/dc power boards with battery backup that we use all the time in the alarm industry. Some of them even have a relay that can open or close if the battery goes low or dies
"8 years ago" _sees 2015_
My brain: Excuse me sir, 2015 was like 2 years ago
labeling switches is very handy for the thief :)
I really liked this video. The development board you chose looks like a really nice piece of hardware that could be used in a ton of different projects.
Cool little project. That radar sensor looks handy - wonder how it compares to the passive infrared human presence sensors? You could optimise the design slightly by using one of the integrated GSM/GPS ESP32 boards (eg by Lilygo).
the fact that you can power everything with 12v means you can get one of those 12v ups power supplys (commonly sold in LED shops). it is a regular 12v supply with additional leads for lead-acid battery. by this you can avoid being vulnerable to the theif taking down your power breaker because the system will resume from the lead-acid battery. you can use regular motorbike batteries that are smaller in size (about 7-9Ah)
I'd love to setup one of these for a rural parcel drop box. but it's wayyyy over my head
it would be really handy to set this up to get notifications if there is a package, or if the entire box moves.
Awesome project!!!
I want to give few hints regarding radar sensors:
1. you can buy those sensor based on different frequencies. Ensure that the choosen frequency is allowed in you region for your application. Having a wrong radar running might disturb other electronics near by... and at least in Germany you can get serious trouble if someone calls the autorities because you block a certain frequency band.
2. Be aware that radar might be disturbed by any metal. Facing this e.g. to the garage gate might cause some problems.
3. Be aware that the sensor might look through walls 🙂
I did the same thing with a Particle IoT board. It's smaller, has built in backup-battery management and Particle workbench is very similar to Arduino. It's great for development because they come with OTA programming by default.
I also have RP2040 Connect Boards and Adafruit's equivalent doing various reporting.
Prior to concluding the video, I have a query regarding the 4G cellular service you referenced. According to you, transmitting the data would only entail a few bits and incur minimal charges. However, I am unaware of the specifics regarding the cellular boards you demonstrated and would like to inquire whether you are required to pay any setup or monthly service fees, similar to a regular cell phone plan.
Hey, love your projects. Thanks for showing them.
Interesting, thanks for the demo. I shall probably be giving this a go in the near future as I need to hire a garage a little bit away from my apartment. Got so many tools and not enough space in the van or my apartment and the shed is too small as well.
Great video! As many have pointed out the flaws of the switch. I see an easy solution of running some wire in the shed to a secret spot that may be hard to see and mounting the switch there!
Awesome diy and tutorial!
Long gone are the days when burglaries were rare and people didn't have to lock their front doors. Unfortunately we can't rely on not getting robbed, just by hiding all the valuables. What we CAN do, is alerting us and people around, while the burglars are still doing their thing. For such device, this is a great one!
Thanks :-)
Long gone are the days when everyone was armed and robbers didn't live long enough to victimize a bunch of people.
Connect the garage door handle to mains.
How to disarm without starting the alarm?
@@DirtyPlumbus exactly
What Arduino micro controller do you usually use? I use the nano every for most of my Arduino based projects because they can use a 12V power supply and you don’t need the use of a buck boost converter.
I would put ON/OFF switch away from the entrance so that it's not visible. Other than that - great build as always!)
Sorry - he's got an alarm with a cellular connection. The whole idea of an on/off switch is ridiculous. The alarm should always be powered but armed and disarmed from the phone via a code. Yep, more complicated but what modern alarm doesn't have code based security. I don't want to get too much into feature creep but that is a very low cost add on (a 4G receiver/transmitter rather than just a transmitter). And a small lithium ion battery backup. Easy and right down Great Scott's alley. I see an alarm 2 point zero coming.
nRF microcontrollers are one of the best ever in the world of Ultra low power consumption electronic products. I have worked with that already 😁. Please make more projects or do some courses on nRF modules.
Looks great! A suggestion would be to have the arm/disarm switching done with a keyed switch instead of a toggle switch to lessen the chances of someone disarming the system without permission.
Wow I didn't know wigig radars were so cheap! I'm definitely gonna have to try this one out. Also that nordic board looks sick and the software actually usable, I should try that one out too. Thanks for the great video and the insight on these technologies!
You should mount the alarm box in a safe all by itself. Run the wiring for the accessories (sensors, speakers, lights, cameras, microphones, etc.) Out of the bottom or out of the back of the safe. Secure the safe to the floor or the wall, if you can. A burglar could waste so much time on trying to take or to breach that safe. As they waste their time, notifications are being sent, photos, audio recordings, or video could be taken, and sent. Alarms could be making loud noises while strobe lights flash and disorent the intruder. So even if they smashed the speaker or the lights, they still wouldn't be able to stop the notifications or the audio/video recordings from being sent.
Another option would be to mount the alarm box in some other location, still use a dummy safe that is either too heavy to move or bolted to the floor or wall, and mount all of the alarm accessories in the areas needed to protect your valuables.
Hi, I have a question. What if I wanted to have a wireless energy source and using the planets in the sun at the actual energy source that you think the plan is as resistors and anything else that you need like you showed on on the wireless video what? How can I how can someone use the planets or whatever they made out of or whatever material Matias are, and using those to get a wireless dad, a wireless chargers or electricity if that made any sense if the question if that’s possible thank you.
Would it be possible to code in a soft switch? It occurs to me that if it's possible for the device to receive texts as well as send them, it wouldn't be hard to encode as soft switch. In such a set-up one could simply text "Arm" to arm the device and "Disarm" to disarm the device or any other number of key phases to work in place of the commonly used ones.
Hi, Scott
I need help. When I connect 60v DC to power mosfet/IGBT (+to drain -to source) it blows up transistor, the transistor not connected anywhere else. how is this possible? (used IRFP260, STGWT40HP65 and other models)
Did you compare the performance with a solid lid vs 3d printed? the non solid and non smooth 3d print is according to their datasheet not optimal for a radome - but I havent done any scientrific testing other than heatshrinking a sensor for testing which was not great.
Nice job, ive been thinking about building something like this 👍👍
There needs to be a decoy label on those switches.
I actually was gonna build a similar system in a very similar box for my scooter. With a gyroscope to detect movement, GPS, a few buzzers and a GSM module to send alert SMS. But I never got the GSM module to function, I think it was DOA.
I started studying electronics engineering in 2015 and now making a security system for my workshop. You got my back.
How long until the µC stops working and needs a restart? With all of my long term (years) µC projects, they stop after maybe 3...6 months and need a restart. Irrigation, weather station, ...
Just like the irrigation, you want the alarm system to function all the time without having to worry about this and without needing to check on the system all the time. Is there a solution to this problem?
Great project and nicely done. I would have made one different decision. I can't tell from your video if you turned down the volume when the alarm was on, but it doesn't sound very loud or piercing. If not, I would have scrapped an old smoke alarm for its siren - they are loud, annoying, and would definitely cause intruders to not stick around. Additionally, that flashing alarm is awfully expensive if some of us out here wanted to recreate your project.
Coolest project i have seen this week!
Awesome! ;-)
nice project i was looking for something like this, thank for sharing this Scott!
You are welcome :-)
My main question about these cellular boards is how much you'd pay for say a year of service with the minimal amount of data (say 1MB). If that cost were less than $10 there are a number of interesting things you could do with a board like this (e.g. put one in your car to track it very cheaply).
8:33 Its Visual Studio Code software. Actually I haven been your follower since 2016. Back then i was electronics enthusiasts. Now switched to software and I use VS code for my day to day jobs. It’s nice to see that you too use the same for electronics project
next video idea : a security system based around 10 big speakers making the intruder deaf
great video. can i suggest that you make a system for remote door bell (Infra Red, 2 way audio, auto cycling of video data to cloud, notification upon detection of person in video), part 2, enable a remote lock/unlock system (for postman to securely put packages in a box, and remotely lock the box there after)
I can put it on my to do list :-)
That would be really handy here in Brazil!! great project! I'll make one one day xP
Go for it :-)
Taking pictures would be a awsome feature. A silent mode would be nice too.
My only concern is it looks like you installed it right next to the door with the buttons facing anyone entering. A thief could just hit the off button quick before any detection. Might make more sense to mount it on the backwall facing the door, and trigger a way to disarm it from a text before entering.
Such elegant and clean video.
Couple of unknown aspects/suggestions: how do you "disarm" it ? Flipping a switch like you show is way too vulnerable for an alarm system (suggestion 1: at the very least, it should have a keypad to punch in a code). Suggestion 2: remote arming/disarming via the phone. Cheers
Nice project!
I wonder if this siren/led would really distract thiefs especially in a sparsely populated area. Maybe adding some really bright lights in and outside of the garade could draw more attention.
Did you also think of adding a camera which makes snapshots in case of a burglary?
Correct me if I'm wrong but the market seems to be sorely missing a solution for low cost, low bandwidth data communication over modern cell networks. For example the SIM800L is a fantastic low cost easy to use SIM module that works on 2G, but with 2G being phased out, what fills the gap? The board in this project is ridiculously big, other LTE boards seem to be prohibitively expensive - what's the barrier to making something like a SIM800L for 4 or 5G?
How can I use the LoraWAN? My company deployed it in my state. But it's more used for local communitys
As he stated, this is a development board, and those tend to be rather big because they expose pretty much all in/outputs the chip(s) has/have to offer plus debugging facilities. Boards meant for "productive" environments are way smaller but only have some of the in/outputs. For example, a GPS tracker with 4G that I have is inside a housing that's just 75x40x35mm big, and that includes a battery pack.
I wont expect these kind of modems to get cheaper, even a multiband antenna is like €5 each
Probably after 2g complete shutdown some companies will make something similar for 4g, than will become more cheaper.
The box needs to be concealed and a keyboard pin code or something is needed to make it secure, also the siren needs to be wireless connected and some distance from the control box. Or, you could make a dummy box to distract the thief, with the real one concealed. I would also suggest a high brightness strobe alarm beacon so would be intruders are temporarily blinded to prevent them easily taking anything.
Throw in a backup battery that should be essential in an alarm system, you already have the PCB for it and some X-Ion batteries. This way, you could cut the power supply cables of the garage and enter freely inside.
For your next revision, you may want to try the AVR-IoT Cellular Mini board by Microchip. It's Tiny compared to the dev board you used here, and compatible with Feather format microcontrollers. So you can program it in Arduino or Circuit/MicroPython.
Oh.. and it's eSIM compatible as well!
Here in Germany they can't shut down GSM that easily. A lot of stuff depends on GSM and it would be really expensive to replace everything.
GSM is used in a lot of alarm systems or fire alarm base stations for larger buildings. Also a lot of older people still use older phones that won't work anymore then.
I found out that on a certain point in the next village you still have 3G reception till today although it should be shut down. I don't know why that is the case, but it is a bit weird.
Fantastic work, dude! Nicely done!!! 😃
But it would be really interesting if they made this technology available without the need for the whole board. After all, you still used an Arduino... And it should make it much cheaper. 😬
Anyway, stay safe there with your family! 🖖😊
Great work 👍
Thanks :-)
Has all the bells and whistles - nice. Just needs a backup battery!
Hey Scott, what type of filament did you use to print the housing of the electronics?
Why would you put switches on the side of it though, perhaps use key switches or hidden buttons to keep the thief from just switching it off? You could reach through a side window to turn it off with a pole or something similar
There’s a limit to how secure something can be, maybe they could use a rail gun to take the entire module out from 2 miles away and have a second man ready to get in.
I had a similar system using a PIR sensor. It triggered an led floodlight along with the buzzer from a washing machine. However it kept scaring the locality dogs and cats and kept me awake and sleepless all night with the false alarms
I guess cats and dogs usually dont get into that garage.
Isn't 3d printer filament rather flammable, unless you buy the expensive heat-resistant filament?
I had it in mind to build some enclosures for mains voltage components myself, but the flammability of the more commonly used filaments put me off a bit.
my only change would be instead of a switch on the side, clearly labeled on/off and arm, maybe have that be something you do with the phone that receives the alarm notification. otherwise, really nice project.
Is using a lidar sensor a better way then the sensor you've used‽
i would remove the switchs on the side, add a pin pad, a battery, paint the box a color that matches the wall, make the sensor the brain and the sciren wireless, so i can hide the the "central", and a heart beat to monitor if everything is okay every seconds otherwise notify aswell
but good video :) any plans for the green house ?
Love to see this! I saw the original video back in the day and build my own version for my room in the time. Might build this version for when I get my own place :)
Really cool project!
Exept the fact that you can turn the device of that easily xD
in the uk a siren is used on most railway crossings and sound the same most of the time
Clever stuff, Scott. Thanks for sharing.
This is such a simple and useful device. Now your friend garage is save very nice . 👍
Thanks :-) I hope so.
Thieves just need to flip the switch to turn the system off. Nice design.
There is room for improvement there.
@@greatscottlab can you use the MQTT broker to allow him to turn the device on and off with his phone?
@@greatscottlab
Yea this was my first thought too. I would stash all the electronics elsewhere and have just the radar in the same place. Would also move the alarm away from that location as well. A thief is very likely to be carrying a heavy tool. If they didn't run straight away they would likely run to the obvious alarm box and smash it - or even run to it intending to smash it at which point they would see the helpfully labelled 'off' switch directly above it ;)
@@greatscottlab There is a garage of improvement there
@greatscott what about taking a picture of thief before breaking the unit.
I have been looking into doing something similar over the cellular network for years but have never found a way around the cellular $$$ part that didn't cost $100+ a year and a signup for new service. If you have a better way, I'd love to hear it.
actually you could had used just a pir sensor facing the entrance. just by opening the door the change in detected ir is enough to trigger, it's damn cheap and it doesn't pick you if you are outside.
great project tho.
I would suggest moving outside to arm switch to a keyed switch whit tamper protection, outside, so you don't get blasted by the siren every time you open the door
Great project. Thanks. Will check out that 4G board. Cheers!
Imagine this modded into a chastity belt
You should add a backup battery, as in case mains are cutoff
Cool project.
i like alarm system with obvious off button :D
Hey GreatScott, cool content as always! I wanted some info regarding multiplexing the CC lines on USB-C PD Devices i.e. Connecting 2 USB PD Devices (different power requirements) to 1 USB PD Source. Is it possible?
Great job, really enjoyed the video 👍🏼
Great project, you might have thrown a battery backup in there though incase of a power outage.
True
Well an awesome project, but there is one point thats really disturbing and thats the on / off switch on the side of the case. What if, in theory, a thief would make it into that garage without triggering the alarm, switches the whole system off and get the whole stuff out of there. As you are using an Arduino tho i think the best way to deactivate the system is a numpad with a special code or a fingerprintsensor or an RFID Card.
Someone will be coming to steal that Dev board.... 150GBP wow !
You can get the important IC from Nordic smaller and cheaper ;-)
I think its a great idea. It would be also pretty easy to add a keypad for code entry. And also maybe integrate smart lightning etc to this same 'box' as well.
then you could just buy a lares 4.0, a Bentel, a Qolsysor a Visonic. Those are all great alarm unit with good home automation features such as Konnex, HTTP Gateway and relay expansion
One question, that voltage regulator (12V to 5V) is not going to heat alot without an heatsink?
Add bigger ON and OFF buttons on the alarm system. Then you won't have to get out of bed in the middle of the night when the thief is after the motor cycle. Just kidding, I am using sarcasm.
You should add a key switch with a remote control
Notice that the mosquitto test instance is not guaranteed to be available in any way - it's a test instance only. Also, Android phones love to shutdown or delay background services for battery saving. I wouldn't want to rely on an alarm set up like this. (Sorry for the negativity, but I've been working in IoT long enough)
Yay!!. My first motorbike in 1987 was an MZ Simson 50cc :) Loved it.
lol, I actually took my headphones off when you were powering up that siren because it sounds EXACTLY like the fire alarm in my building.
Haha sorry about that ;-)
For status messages you could also add a LoRaWAN (the things network) module.
Agreed!
I'd love to see a follow-up to this adding secondary or tertiary band communications routing in the arduino controller!
Is the mention cellular sim network is free ?
Or should pay for monthly basis
It is free. You only have to pay when you need more data.
hey
i have a problem with a project that iam doing rn
when i plug my 50.4v dc there is spark and spark destroyed my project and all componant in it
could you do a vid on that matter please :)