Very good video, with lots of info & well delivered. I wonder how this channel flew under my radar (pun intended) for so long. Subscribed! 👍🏻 Now, I have a couple of things I'd like to point out if I may. 8:07 The circular thingy serves as a capacitor for the oscillator (high-frequency NPN transistor), not an antenna. The antenna is at the other side, & it's a common transmit/receive antenna. 10:44 Although the LED pins are correct (anode = longer), the internal electrodes are wrong (anode = smaller, not bigger). I'm pointing this out because I believe one should look at the internal electrodes to figure out polarity, instead of the external ones, since the latter can be cut. & if people learn it wrong from this video, they may run into problems in the future. 20:02 I'd pull the button Pin to LOW, instead of HIGH, for two reasons. - If you pull it HIGH, you're constantly sinking 0.5mA, regardless of the button's state. Yes, that current is negligible in this circuit, but I believe it's important to adopt "good habits" anyway. In the case of microcontrollers, taking their limited power capabilities into consideration is one of them. - It feels more intuitive to "send a signal" to the Pin when the button is pressed, instead of "disrupting a signal". I believe it's easier for less experienced tinkerers to understand too. From what I've read (I haven't tried them myself, yet), those sensors don't interfere with other GHz devices (routers etc). Apparently they don't interfere with each other either! So using BT shields should work well too.
Hello !! I'm about to prepare myself in making an alarm for my workshop and garage, your video has been more than useful to my future project. Nice explainations and many details. Good Job, keep on instructing us !! Long life to your channel
Very interesting and informative video. The RCWL-0516 is now on my list future projects. I also particularly appreciate the care and preparation put into the production, and the use of high quality video. Too often videos like this are made with low resolution video so that the code examples and diagrams are unreadable.
So useful I bought some! Thank you. A good, concise video. I attached the output signal to an optocoupler relay module and the relay switches, so that's good! I've also found that if you keep moving around, the sensor is always active so the relay stays on E.G. running a light bulb, alarm etc. turns off once movement stops. would be good for a self contained alarm/light/ device on its own without needing an Arduino (or Picaxe in my case) so saving a few quid!!!! thank you again, You"ve got a new subscriber :-)
As always, you explained things that is easy to understand with actual example and links to the codes, docs etc.. Keep up the good works. Thank you! New subs here!
Vos vidéos sont très intéressantes et vos explications très claires, avec un réel souci de pédagogie. En vous suivant, je m'améliore. Je vous remercie très sincèrement pour ce partage.
I think it's more appropriate to call this a motion sensor, or motion detection module. It has no capability to detect 'proximity'. Any stationary object in the sensors proximity will not be detectable nor can it determine the distance to an object's proximity.
Hi all! Thank you Bill for that video. I have a problem with my chickens. They always come to my patio and make it dirty. My project is to create a forbidden zone. So, I experimenting with a system to chase them away. I plan to use the product shown in this video to pilot two perpendicular air jets. These streams should be oriented on each side like a barrier and start simultaneously when a bird approches. To synchronize the actions, I wonder if that way of proceeding is a relevant choice in terms of sensitivity and speed. If someone has an idea or an experience, I'm interested. I look forward to reading you. Thank you very much. Philippe
Another side benefit of this circuit with remote is the microwaves knock out car key remotes , so if your car key is cloned no one can use it anyway cause the only way to open car is with key manually while the detector is running when you come back turn off microwave and you can open car again
Excellent! Waiting for my sensors to arrive. Practical discussion of using PIR or ultrasound vs this radar sensor (range, false positives, penetration of glass windows, etc) will be addressed in my own experiments. It would be nice if the sensor did not stay on for two seconds so it could be rotated and data collected in many directions in real time. Thanks for your great projects, well explained, as always.
There are other microwave sensors out there that just output the raw data but they seem to be more difficult to operated. As these are so cheap, you could use two or more pointing to different directions?
Ive used this to detect if my cats are outside my door. Its hooked up to a transistor that turn on leds that light up a cat shaped 3dprinted figurine. Been working fine outside for a couple of years now.
Hi, First I have to say that I really enjoy your instructional videos. You are one smart cookie. Keep em coming :) Secondly, I purchased the RCWL-0156 sensor and wired it up, both on its own, and then to an UNO, as per your instructions. ( I have a fair bit of experience with Arduino, and everything related to it, so I am confident that I connected everything properly) . I used a 220 ohm resistor for the out pin to the led. My issue is that although the RCWL functions properly. (IE: The led lights up when the sensor senses movement), it only has a range of 2cm. It doesn't pick up anything further than that. I received 5 units in my order, and tested all of them, and they all have the same range (2cm). Has anybody else experienced the same issue. Any ideas as to what could be wrong. PS: I tested with 2 different power supplies, first the UNO, and then I hooked up my Korad KA3005D set first to 12 volts, then to 24 volts and 0.003 amps. The sensing range was the same for all tests. Could it be a bad batch of sensors ? Cheers, T
Great stuff!..I bought some doppler modules, and was looking for a way to control their output for lighting a room.I need an arduino lol.. thanks for explaining in a great relaxed concise manner. Fantastic video :-)
Me 30 minutes ago: What the heck is a RCWL-0516? Me after watching the video: I'm sure I could work with a RCWL-0516 and I now understand the Doppler effect. Awesome! :)
I'm glad for this vid. I'm useing the 0516 with a GSM (A6) with a uno to make a alarm, I got the code for the 0516 right but to send a sms is a bit more difficult but getting there. I hope when I get to figure every thing out to make a video of what I did and also with the code but got to get the code for the sms right. But nice video
hi. nice explanation, but if the person isn't whistling like the train what is the sensor actually sensing and how is the Doppler effect being observed by it? are we all giving off radio waves?
Allo and thank you very much for the great knowledge you share with us , my question about this microwave sensor is : Range ; is there a way to have a set range ,meaning ignore from X range and more but when movement is inside the set range then an action is taken ?
Tiny nit to pick; The dopper effect was not *discovered* by Doppler, Doppler was the best known source for a detailed description of the ffect. A bit like how Tesla is credited for inventing wireless power transmission even though induction and radio had been wel documented long before Tesla's grandparents where born.
Why the comment about the safe use of microwaves when using this board? I don't understand. Aren't microwaves all over the place already? Nobody mentions safety when working with IR emitting devices. IR radiation is of both higher energy and absorbance by the body. BTW...Great video!
i have a question what is the maximum distance of this sensor as i am thinking about making a cycle sensor for my bike to show me when vehicles are behind me and approaching me
I do not think you will be able to do that because as you are moving, the sensor will detect movement all the time. But if you were able to, tell us. :)
Thanks for an informative video - question I have is - how directional is the radar on the RCWL0516? Can one make it only detect in a narrow range as I am thinking of using it on a model railway layout and to trigger only when a train passes by ? - thanks
When you explain the Doppler effect, you show the base frequency as 1000Hz and then 2000hz when object is approaching. Think about that for a moment, that can only be true when the frequency is doubled, or when the emitter is moving the same speed as the wave. Either Mach1 for sound or Warp1 for radio waves. But, how do you make sure the emitter isn't arriving at the observer Before the wave? Typically, Doppler doesn't operate on such extreme multiples or fractions of the base frequency that you presented.
I just discovered this sensor last week, its very neat! I'm surprised its taken me this long to realize it exists as it seems to be a fantastic replacement to a conventional PIR sensor, and equal or better costwise as well. In fact now I'm wondering why anyone would use PIR when this is available. Can you (or anyone) breakdown any pros/cons between the two? So far it seems like a no brainer to go with this instead.
One corn i observed was this sensor is sensitive for motions beyond the walls or even doors so its not good if you are placing this on a wall to monitor motion within a particular room.
I looked at 3 different videos with the same wire diagram and the LED just keeps blinking on/off. I tried different boards and they are all doing the same thing (basic setup). What might be the issue?
Those 433 transmitters and receivers are hell to work with. Avoid if you don't like pain. The NRF24L01 works a lot better but you need the adapters or forget it.
As always a great video I want to make one for my front door, so I see that it works through plastic but does it work through glass as well. Thanks, Bob from the UK
since this rcwl-0516 can detect object from above, beneath, left and right, and how can one/the arduino knows where the object is moving from ??? thanks for your time and your input and this tutorial;
Hi can you please point me in the right direction for the pcb terminal block. As the holes are very close together I don't want to buy the wrong ones. Thank you
Thanks, broad coverage. Excuse my ignorance, but how would it be possible to power a AC 230V light bulb without the Arduino, viz as standalone solution for LED as you described from 10:00, indeed AC relays require 5V DC and with RCWL-0516 the ouput is 3.3V.
I have been making attempts with a great deal of failure due to PIR sensors instability . These PIR sensors seem to have a mind of their own going high for no reason. They all do the same even at minimal sensitivity settings. My Build design consists of one Servo motor to provide Panning .. Also four PIR sensors facing North, East, West and south. as each sensor goes HIGH the servo turns in the direction of that PIR sensor.. The sensors have side blinders to prevent false directional readings. I hope that the RCWL-0516 Microwave Proximity Sensor may help
I like seeing different modules tested and used, it is a good way to get ideas. Why do you believe it uses doubler effect? My guess is that it works the same way as ultrasonic movement sensors (Not distance measurement) and PIR detectors. That is you get some "DC" level depending on the environment, if anything moves in the environment this level will change. The chip will amplify these changes and if they are above a threshold trigger the output. Another detail is your switch connection, why use a resistor? A single line in the program will make the resistor obsolete.
A comparison and more detailed explanation can be found in a video by Andreas Spiess at ua-cam.com/video/9WiJJgIi3W0/v-deo.html What you are referring to by "DC" level is the (processed) output of a sensor device. Radar, ultrasound and pir sensors each use a different physical phenomenon to obtain a measurement. Regarding the resistor: the internal pull-up resistor inside the MCU(which is what you are referring to) is rather large and can vary between a relatively large range. It will be sufficient in most circumstances. However, if you have bad luck and have a MCU batch where the pullup's are rather big, the pull-up effect can be too weak in a noisy environment and cause false triggers. Therefore it is good practice to use an external and known resistor. That way, you can create more robust hardware and decrease its value for noisy environments. Often this is also combined with a small capacitor (e.g. 100nF) to suppress/filter any picked up high frequency noise.
Thank you for the video. One question … the first ones I do bought, only worked in 1 cm around, so I do bought another ones. The new ones worked well. I realised that the new ones have an 7133-1 regulator. What are the differences between ones with this regulator and the ones without it? Again thank you for your videos, they are very instructive 😃.
Good work, Le radio-Amateur peut vous confirmé que le 2.4Ghz ne sera pas interféré par le 3.18 Ghz et vice-versa. Les fréquences sont suffisamment éloigné l'une de l'autre sans être une harmonique.
Really good video. Thanks for sharing your knowledge. I have one question please. The object must be in front of the antenna or is it able to detect movement of objects that are not perpendicular to the antenna? Best regards from Valencia, east coast of Spain.
I have been trying to build a burglar alarm for my motorcycle to prevent people from stealing gas and so far have been unsuccessful. I have tried PIR and RCWL-056 and a few of the other sensors from your site. I have determined for my use, a touch sensor circuit would work best but cannot conceive how to use the motorcycle frame as the sensor. The pir has too many false alarms as does the RCWL. I already have a motion detector commercial alarm but it is not reliable as sometimes you have to really smack the bike to alarm it. I have tried using an arduino touch library but when i add a small metal grid the arduino cannot detect my touch. This type of alarm seems to be available commercially but I would like to build it. It would be great if you could build a project like this to demonstrate this alarm for either a motorcycle or a car.
I like your show. Could you do some shows about savage electronic. I want to put an infrared heat sensor on my swamp cooler so when I put it in front of it to put moisture in the air I can get a instant read and adjust the fan motor and water pump. The instant read are cheap and it has everything already built just transfer to the cooler.
Basically I think probably in my ignorance that if you can create enough vibration in or on a clay pipe there may be a way to follow and pick up the vibes along the way and locate it at all points ? I can find no way of finding where a buried clay pipe is going underground ? I can see some use a system on utube that is for plastic water pipes by sound in water . But if no water ? Only a unused clay pipe that I would like to locate and reuse but I want to make sure it travels in to the main sewer line away down the main road.
After watching your UA-cam video about the rcwl-0516 module, I bought two of them. Unfortunately, their range is very poor. I thought it was because of the low voltage. I increased it to 24 v, but it didn't help. What am I doing wrong? Maybe these modules are bad? Please advise me something. Thanks
I have an enclosed dark area and today turn the lights on by magnetic reed switch but they frequently fail due to mounting issues. This solution seems better but I need to switch on 12V Leds of several watts. I suspect all I need is a relay (SSR?) instead of the LED or perhaps a MOSFET. Also, what would be the least expensive size arduino that could work. I also saw a reference to nodemcu and/or esp8266. I live in an RV so have lot's of 12V and a supply of buck-boost modules that can output 3 to 40V. Advice?
Hi. I need a sensor that detect when I´m in the same side of a door but it doesn´t when I in the other side of the door. ¿Does this card works like this? I want to make an indicator for a rest room, if someone is in, the light turns on automaticly, but if nobody is in the rest room it turns off
If one of these modules was placed into a block of concrete , say 200mm thick - with an aperture to the outside say 20mm x 50mm - that would make it 'see' only a moving object along that narrow band ?
Good video. I attempted to use one of these RCWL-0516 sensors with an ESP32 (client) configured to send the motion detected via ESP-NOW to another ESP32 (server). Unfortunately I’ve come across a small problem. The Wi-Fi function of the ESP32 causes false triggering of the RCWL-0516 if it is in close proximity to the ESP32. I don’t thinking it is the sending of the ESP-NOW messages causing the problem but when the ESP32 module comes out of deep sleep and the Wi-Fi initialises.
Hi, nice video😀👍. Please could you suggest sensors which are suitable for parking occupancy detection which will be sealed in an enclosure and installed below the ground. Will this sensor be suitable?
How about using the idea behind how some traffic signals are controlled: a loop of wire in the ground. The loop of wire is (basically) an antenna and when a large metal object such as a vehicle is over the antenna, the frequency changes. Have your software watch for a change in frequency, then react to it.
Well done! Is there any way to 'focus' the detector? It currently detects a full 360 deg sphere so will detect movement inside and outside the house. Not much use as an intruder alarm?
Very good video, with lots of info & well delivered.
I wonder how this channel flew under my radar (pun intended) for so long.
Subscribed! 👍🏻
Now, I have a couple of things I'd like to point out if I may.
8:07 The circular thingy serves as a capacitor for the oscillator (high-frequency NPN transistor), not an antenna.
The antenna is at the other side, & it's a common transmit/receive antenna.
10:44 Although the LED pins are correct (anode = longer), the internal electrodes are wrong (anode = smaller, not bigger).
I'm pointing this out because I believe one should look at the internal electrodes to figure out polarity, instead of the external ones, since the latter can be cut.
& if people learn it wrong from this video, they may run into problems in the future.
20:02 I'd pull the button Pin to LOW, instead of HIGH, for two reasons.
- If you pull it HIGH, you're constantly sinking 0.5mA, regardless of the button's state.
Yes, that current is negligible in this circuit, but I believe it's important to adopt "good habits" anyway.
In the case of microcontrollers, taking their limited power capabilities into consideration is one of them.
- It feels more intuitive to "send a signal" to the Pin when the button is pressed, instead of "disrupting a signal".
I believe it's easier for less experienced tinkerers to understand too.
From what I've read (I haven't tried them myself, yet), those sensors don't interfere with other GHz devices (routers etc).
Apparently they don't interfere with each other either!
So using BT shields should work well too.
Excellent tutorial and because of the clear language 100% understandable by non-native-speakers! Thank you so much.
Hello !! I'm about to prepare myself in making an alarm for my workshop and garage, your video has been more than useful to my future project. Nice explainations and many details. Good Job, keep on instructing us !! Long life to your channel
Many thanks ! After watching couple of your earlier workshops, I am practically hooked to it. Every day at least one workshop on my agenda
This entire channel is gold.
I hate it🤭 - cost me a lot of money😏
Can i mine it 🌝
Always the best explanation
Very interesting and informative video. The RCWL-0516 is now on my list future projects. I also particularly appreciate the care and preparation put into the production, and the use of high quality video. Too often videos like this are made with low resolution video so that the code examples and diagrams are unreadable.
Thank you very much for explaining everything in detail and for demonstrating the connections.
Your teaching style is superb. Thank you.
Always learn so much from your videos... Thank you!
Sensational. Your video was really clearly explained with great diagrams and code too. Many thanks.
So useful I bought some! Thank you. A good, concise video. I attached the output signal to an optocoupler relay module and the relay switches, so that's good! I've also found that if you keep moving around, the sensor is always active so the relay stays on E.G. running a light bulb, alarm etc. turns off once movement stops. would be good for a self contained alarm/light/ device on its own without needing an Arduino (or Picaxe in my case) so saving a few quid!!!! thank you again, You"ve got a new subscriber :-)
so I assume you had to use a high level trigger relay correct?
sadly all I have are low level triggered relays
As always, you explained things that is easy to understand with actual example and links to the codes, docs etc.. Keep up the good works. Thank you! New subs here!
Vos vidéos sont très intéressantes et vos explications très claires, avec un réel souci de pédagogie.
En vous suivant, je m'améliore. Je vous remercie très sincèrement pour ce partage.
I think it's more appropriate to call this a motion sensor, or motion detection module. It has no capability to detect 'proximity'. Any stationary object in the sensors proximity will not be detectable nor can it determine the distance to an object's proximity.
Brilliant channel. Many thanks for your hard work. Love the clarity of your presentations.
Hi all!
Thank you Bill for that video.
I have a problem with my chickens. They always come to my patio and make it dirty. My project is to create a forbidden zone. So, I experimenting with a system to chase them away. I plan to use the product shown in this video to pilot two perpendicular air jets. These streams should be oriented on each side like a barrier and start simultaneously when a bird approches. To synchronize the actions, I wonder if that way of proceeding is a relevant choice in terms of sensitivity and speed. If someone has an idea or an experience, I'm interested.
I look forward to reading you.
Thank you very much.
Philippe
Sir, your videos are the best videos I ever saw.
Beautifully explained. Thank you very much.
Another side benefit of this circuit with remote is the microwaves knock out car key remotes , so if your car key is cloned no one can use it anyway cause the only way to open car is with key manually while the detector is running when you come back turn off microwave and you can open car again
Excellent! Waiting for my sensors to arrive. Practical discussion of using PIR or ultrasound vs this radar sensor (range, false positives, penetration of glass windows, etc) will be addressed in my own experiments. It would be nice if the sensor did not stay on for two seconds so it could be rotated and data collected in many directions in real time. Thanks for your great projects, well explained, as always.
There are other microwave sensors out there that just output the raw data but they seem to be more difficult to operated. As these are so cheap, you could use two or more pointing to different directions?
Thanks for the suggestion and clarification on available sensors - 3 sensors coming for just that reason.
You should have far more subscribers than you do, your videos are extremely good.
Ive used this to detect if my cats are outside my door.
Its hooked up to a transistor that turn on leds that light up a cat shaped 3dprinted figurine.
Been working fine outside for a couple of years now.
Crystal clear. Thanks for sharing.
Great Sir always trying to use modules to their full potential..Love from Pakistan
I love your videos, they are all so informative. Thx much.
Thanks. Very clear. That's one incredibly fast train in the Doppler explanation. ;-)
I have leant a lot from your channel, Thank you veru much.
Hi,
First I have to say that I really enjoy your instructional videos. You are one smart cookie. Keep em coming :)
Secondly, I purchased the RCWL-0156 sensor and wired it up, both on its own, and then to an UNO, as per your instructions. ( I have a fair bit of experience with Arduino, and everything related to it, so I am confident that I connected everything properly) . I used a 220 ohm resistor for the out pin to the led. My issue is that although the RCWL functions properly. (IE: The led lights up when the sensor senses movement), it only has a range of 2cm. It doesn't pick up anything further than that. I received 5 units in my order, and tested all of them, and they all have the same range (2cm).
Has anybody else experienced the same issue. Any ideas as to what could be wrong.
PS: I tested with 2 different power supplies, first the UNO, and then I hooked up my Korad KA3005D set first to 12 volts, then to 24 volts and 0.003 amps. The sensing range was the same for all tests.
Could it be a bad batch of sensors ?
Cheers,
T
Nice useful tutorial.thanks for sharing your valuable ideas.
Great stuff!..I bought some doppler modules, and was looking for a way to control their output for lighting a room.I need an arduino lol.. thanks for explaining in a great relaxed concise manner. Fantastic video :-)
Great video. I absouluty love watching your videos. It is like candy for my brain. :)
Me 30 minutes ago: What the heck is a RCWL-0516?
Me after watching the video: I'm sure I could work with a RCWL-0516 and I now understand the Doppler effect.
Awesome! :)
I'm glad for this vid. I'm useing the 0516 with a GSM (A6) with a uno to make a alarm, I got the code for the 0516 right but to send a sms is a bit more difficult but getting there. I hope when I get to figure every thing out to make a video of what I did and also with the code but got to get the code for the sms right. But nice video
Another great lesson. I am really looking forward to the robot build.
Thank you for all these excellent videos.
Can you do one on the LD2410C radar?
hi. nice explanation, but if the person isn't whistling like the train what is the sensor actually sensing and how is the Doppler effect being observed by it? are we all giving off radio waves?
Allo and thank you very much for the great knowledge you share with us , my question about this microwave sensor is : Range ; is there a way to have a set range ,meaning ignore from X range and more but when movement is inside the set range then an action is taken ?
Could you please make videos on how to code in the "C" Programming languages? You're an incredibly good teacher.
Good channel for teaching practical material thanks
This is an amazing demo
Thanks for this video, as usual very detailed and well presented. Really useful information.
Tiny nit to pick; The dopper effect was not *discovered* by Doppler, Doppler was the best known source for a detailed description of the ffect. A bit like how Tesla is credited for inventing wireless power transmission even though induction and radio had been wel documented long before Tesla's grandparents where born.
Very clear explanation. Excellent job.
Why the comment about the safe use of microwaves when using this board? I don't understand. Aren't microwaves all over the place already? Nobody mentions safety when working with IR emitting devices. IR radiation is of both higher energy and absorbance by the body.
BTW...Great video!
Excellent video. 90% of what i need to do in my project....
Thaks, even if I don't speak english well I love your video and your class.
Very easy to learn type video. I like it so much thanks
There is also an RCWL 0515 version
Hello. Wery nice video. Good job. I like the wireing animations. Can you please tell me what program do you use for that. Thanks
Excellent Video. Extremely informative. Sir can you please make a video on how to use an esp8266 with Arduino?
Exceptional video, thank you very much. I really appreciate your calm and comphrehensive style of presentation.
Sir you are excellent. Can you make a detailed video on P10 display board.
i have a question what is the maximum distance of this sensor as i am thinking about making a cycle sensor for my bike to show me when vehicles are behind me and approaching me
I do not think you will be able to do that because as you are moving, the sensor will detect movement all the time. But if you were able to, tell us. :)
Man, just use a side view mirror on the handlebar.
@@KirtikSoni wheres the fun in that
Thanks for an informative video - question I have is - how directional is the radar on the RCWL0516? Can one make it only detect in a narrow range as I am thinking of using it on a model railway layout and to trigger only when a train passes by ? - thanks
Gr8. Thanks for good explanation as always. Sir, as a common man, I thought, such sensor could be used to measure the distance.
Seems like a great device to detect Orchestral Manoeuvres In The Dark.
When you explain the Doppler effect, you show the base frequency as 1000Hz and then 2000hz when object is approaching. Think about that for a moment, that can only be true when the frequency is doubled, or when the emitter is moving the same speed as the wave. Either Mach1 for sound or Warp1 for radio waves. But, how do you make sure the emitter isn't arriving at the observer Before the wave?
Typically, Doppler doesn't operate on such extreme multiples or fractions of the base frequency that you presented.
I just discovered this sensor last week, its very neat! I'm surprised its taken me this long to realize it exists as it seems to be a fantastic replacement to a conventional PIR sensor, and equal or better costwise as well. In fact now I'm wondering why anyone would use PIR when this is available. Can you (or anyone) breakdown any pros/cons between the two? So far it seems like a no brainer to go with this instead.
One corn i observed was this sensor is sensitive for motions beyond the walls or even doors so its not good if you are placing this on a wall to monitor motion within a particular room.
I looked at 3 different videos with the same wire diagram and the LED just keeps blinking on/off. I tried different boards and they are all doing the same thing (basic setup). What might be the issue?
Those 433 transmitters and receivers are hell to work with. Avoid if you don't like pain. The NRF24L01 works a lot better but you need the adapters or forget it.
How about adding a small piezo buzzer speakerr to it too, difficulty?
You could add a small relay to the circuit then control a buzzer or anything else with it.
Very clear perfect video....thanks
As always a great video I want to make one for my front door, so I see that it works through plastic but does it work through glass as well. Thanks, Bob from the UK
Sure test it out and see. That's all part of the fun of it :)
Great video Sir 👍. Keep it up.
Impressive ! Good explanation
Thank you very much, Bill.
since this rcwl-0516 can detect object from above, beneath, left and right, and how can one/the arduino knows
where the object is moving from ??? thanks for your time and your input and this tutorial;
Excelentemente explicado, gracias.
link to article cannot be reached. great info!
Hi can you please point me in the right direction for the
pcb terminal block. As the holes are very close together I don't want to buy the wrong ones.
Thank you
Thanks, broad coverage. Excuse my ignorance, but how would it be possible to power a AC 230V light bulb without the Arduino, viz as standalone solution for LED as you described from 10:00, indeed AC relays require 5V DC and with RCWL-0516 the ouput is 3.3V.
I have been making attempts with a great deal of failure due to PIR sensors instability . These PIR sensors seem to have a mind of their own going high for no reason. They all do the same even at minimal sensitivity settings. My Build design consists of one Servo motor to provide Panning .. Also four PIR sensors facing North, East, West and south. as each sensor goes HIGH the servo turns in the direction of that PIR sensor.. The sensors have side blinders to prevent false directional readings. I hope that the RCWL-0516 Microwave Proximity Sensor may help
Hello sir
I have bought 10 of the same sensor.
None of them work. They work but in a distance of 1-2 cm
What is wrong with those sensors
Hi,as always good tutorial, is it possible to make a microwave leak detector with this sensor,for a microwave oven?Thanks
I like seeing different modules tested and used, it is a good way to get ideas.
Why do you believe it uses doubler effect? My guess is that it works the same way as ultrasonic movement sensors (Not distance measurement) and PIR detectors. That is you get some "DC" level depending on the environment, if anything moves in the environment this level will change. The chip will amplify these changes and if they are above a threshold trigger the output.
Another detail is your switch connection, why use a resistor? A single line in the program will make the resistor obsolete.
A comparison and more detailed explanation can be found in a video by Andreas Spiess at ua-cam.com/video/9WiJJgIi3W0/v-deo.html What you are referring to by "DC" level is the (processed) output of a sensor device. Radar, ultrasound and pir sensors each use a different physical phenomenon to obtain a measurement.
Regarding the resistor: the internal pull-up resistor inside the MCU(which is what you are referring to) is rather large and can vary between a relatively large range. It will be sufficient in most circumstances. However, if you have bad luck and have a MCU batch where the pullup's are rather big, the pull-up effect can be too weak in a noisy environment and cause false triggers. Therefore it is good practice to use an external and known resistor. That way, you can create more robust hardware and decrease its value for noisy environments. Often this is also combined with a small capacitor (e.g. 100nF) to suppress/filter any picked up high frequency noise.
Excelente señor. Excelente su video. Muchas gracias.
Thank you for the video. One question … the first ones I do bought, only worked in 1 cm around, so I do bought another ones. The new ones worked well. I realised that the new ones have an 7133-1 regulator. What are the differences between ones with this regulator and the ones without it? Again thank you for your videos, they are very instructive 😃.
Excellent as always! What is the detection range?
Good work, Le radio-Amateur peut vous confirmé que le 2.4Ghz ne sera pas interféré par le 3.18 Ghz et vice-versa. Les fréquences sont suffisamment éloigné l'une de l'autre sans être une harmonique.
Really good video. Thanks for sharing your knowledge. I have one question please. The object must be in front of the antenna or is it able to detect movement of objects that are not perpendicular to the antenna? Best regards from Valencia, east coast of Spain.
I have been trying to build a burglar alarm for my motorcycle to prevent people from stealing gas and so far have been unsuccessful. I have tried PIR and RCWL-056 and a few of the other sensors from your site. I have determined for my use, a touch sensor circuit would work best but cannot conceive how to use the motorcycle frame as the sensor. The pir has too many false alarms as does the RCWL. I already have a motion detector commercial alarm but it is not reliable as sometimes you have to really smack the bike to alarm it. I have tried using an arduino touch library but when i add a small metal grid the arduino cannot detect my touch. This type of alarm seems to be available commercially but I would like to build it. It would be great if you could build a project like this to demonstrate this alarm for either a motorcycle or a car.
For some reason mine only has a max range of about 1cm and I'm not sure why. I set it up the same as in the video (both with and without the Arduino).
I like your show. Could you do some shows about savage electronic. I want to put an infrared heat sensor on my swamp cooler so when I put it in front of it to put moisture in the air I can get a instant read and adjust the fan motor and water pump. The instant read are cheap and it has everything already built just transfer to the cooler.
How to simulate this ? Which software to use ? Please reply me soon as I need to do a project on this
Basically I think probably in my ignorance that if you can create enough vibration in or on a clay pipe there may be a way to follow and pick up the vibes along the way and locate it at all points ? I can find no way of finding where a buried clay pipe is going underground ? I can see some use a system on utube that is for plastic water pipes by sound in water . But if no water ? Only a unused clay pipe that I would like to locate and reuse but I want to make sure it travels in to the main sewer line away down the main road.
After watching your UA-cam video about the rcwl-0516 module, I bought two of them. Unfortunately, their range is very poor. I thought it was because of the low voltage. I increased it to 24 v, but it didn't help. What am I doing wrong? Maybe these modules are bad? Please advise me something. Thanks
On the out pin (not the 3v3) I can't get it to put out 3.3 volts it only puts out 2.7-2.8 so it won't trip the alarm. Any thoughts?
Is there away to keep the light on at night and turn off during the day?
I have an enclosed dark area and today turn the lights on by magnetic reed switch but they frequently fail due to mounting issues. This solution seems better but I need to switch on 12V Leds of several watts. I suspect all I need is a relay (SSR?) instead of the LED or perhaps a MOSFET. Also, what would be the least expensive size arduino that could work. I also saw a reference to nodemcu and/or esp8266. I live in an RV so have lot's of 12V and a supply of buck-boost modules that can output 3 to 40V. Advice?
Hi. I need a sensor that detect when I´m in the same side of a door but it doesn´t when I in the other side of the door. ¿Does this card works like this? I want to make an indicator for a rest room, if someone is in, the light turns on automaticly, but if nobody is in the rest room it turns off
I would think that a PIR (infrared detector) would work better.
Metal sheet will block it.
If one of these modules was placed into a block of concrete , say 200mm thick - with an aperture to the outside say 20mm x 50mm - that would make it 'see' only a moving object along that narrow band ?
How far the microwave sensor can maximal detect the motion? It can detect through the wall barrier?
Good video. I attempted to use one of these RCWL-0516 sensors with an ESP32 (client) configured to send the motion detected via ESP-NOW to another ESP32 (server). Unfortunately I’ve come across a small problem. The Wi-Fi function of the ESP32 causes false triggering of the RCWL-0516 if it is in close proximity to the ESP32. I don’t thinking it is the sending of the ESP-NOW messages causing the problem but when the ESP32 module comes out of deep sleep and the Wi-Fi initialises.
Really nice presentation, could this be used for inwall pipe and wire detection?
Interesting video as always.
Great tutorials!
Mr Bill,
What do you use to present your slides?
Thank you! keep up the great work.
I love your chanel
Hi, nice video😀👍. Please could you suggest sensors which are suitable for parking occupancy detection which will be sealed in an enclosure and installed below the ground. Will this sensor be suitable?
How about using the idea behind how some traffic signals are controlled: a loop of wire in the ground.
The loop of wire is (basically) an antenna and when a large metal object such as a vehicle is over the antenna, the frequency changes. Have your software watch for a change in frequency, then react to it.
Well done! Is there any way to 'focus' the detector? It currently detects a full 360 deg sphere so will detect movement inside and outside the house. Not much use as an intruder alarm?