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.
Perfectly explained! Thank you. I connected the sensor without Arduino to a "remote doorbell button". Battery operated, small size, can be placed wherever it suits. The bell then rings (or just the LED flashes) when someone enters the controlled zone. Works through walls and doors!
Just watched your tutorial and set up a new rcwl-0516 as I watched. I bought 20 and the 1st one I tested works very well. It's set up in front of the TV pointing back at me and it is very responsive and stable behavior too. Great channel and tutorial. Thanks!
Always the best from DroneBot Workshop!!! I just received five RCWL-0516 modules from aliexpress with intentions of setting up security zones for my property , with this very helpful video I think this will be the start of something very interesting, thanks for the upload.
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
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 :-)
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.
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!
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.
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. :)
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
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 all your videos, especially this one. It made it much easier for me working with the RCWL-0516 doppler sensor and it's application. I'm new for this type of module sensors. Thank's again. Mr.G ( PS:I would like to know more abut your newsletter !)
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
Hi, this is the first time I've been here, I'm a retired electronics tech, Marines, not played with electronics much for twenty years, but collected some arduino oriented electronics, off ebay, and low and behold, here's how to use the very module I selected for a burglar/security alarm system for my home. Great teaching skills, very clear explanations, nice easy pace. I look forward to getting caught back up, at least as much as necessary. How did you know I bought that doppler radar device?
@@zaprodk Yes it does, if you rewatch the theory section of the video you'll see it's operating principal is the Doppler effect. This means there will be a different frequency received by the antenna if something is approaching the sensor and likewise for moving away. Just because the default configuration is setting a pin to high whenever any motion is sensed doesn't mean the sensor is limited to it. I haven't verified it since native English datasheets for these .99$ boards are scant but I'd be wiling to bet you could do some mods and using something like an Ardiuno you'd be able to have a separate input for which direction something is moving in relation to the sensor. I currently don't have an o-scope but it would be trivial to do some probing and get a solid answer for this.
I bought several of these in the past to use as room proximity sensors. I intended to install them in the basement facing upwards to detect movement in rooms above. I thought I would be able to block motion detection below by using several layers of sheet metal, therefore only detecting motion above. I was unable to every get it limited in the way I desired. I wish it was possible to adjust these to direct the microwaves in just one direction. Any tips or do this type of experiment? Perhaps I wasn't using large enough sheets of metal.
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;
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.
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 want te make a wireless sensor (on battery) for home assistant. Is there a way that the rf transmitter sends a “on” state when motion is detected without using the uno board? Just the sensor and de rf transmitter.
Request (please) - I would like a device, Arduino mini or PiZero, used as a counting buffer that will also send a "signal" when the count reaches zero. Using 2 doppler detectors, one doppler affixed OUTSIDE a door jam about belt level, that would send a "count up" signal to a buffer, when approached. The doppler on the INSIDE door jam would ignore all movements going away. However, when LEAVING the space the inside doppler would send a "count down" signal to the buffer. A buffer at "0" would turn off the room lighting. This way several people could enter a room, even stop moving around, but ONLY after the last one leaves would the lights go out (buffer at "0"). Seams doable - right? Thank you for sharing...
I'm interested in the same solution. I'm curious how much interference there would be between two of these sensors operating in close proximity, opposite sides of drywall or in/on door jamb.
@@RetroRogersLab - I think it will take at least TWO types of sensors on each side. A sonar and IR. This way you can ditigluish between approaching and leaving the "doorway". Anticipating the count. Dig it?
@@r.a.monigold9789 I'd still be interested in how well the module responds to having the power cycled, a few times per second perhaps. This would allow the modules to be multiplexed to prevent interference. Additionally, even with sensors on both sides of a door you'd have to figure out how to deal with the situation of different persons approaching from each side of the door, simultaneously. This sounds like a job for Machine Vision! LOL
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.
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
Is there something we can do about the sensitivity of the sensor? I live in a city and when one of my neighbors move, the alarm is set. Even three houses away from my house and through walls.
My understanding, from the product description at www.amazon.com/gp/product/B07MTWZDQZ/, is that you can solder a 1 M-ohm resistor on the bottom side (the R-GN points) to decrease the sensitivity.
Hi Is there a way that you can detect a clay 6 inch pipe route by rattling inside it with a drill rod. I can make it rattle in this way as I can access at a point . How can I follow the sound under ground mbe 4 metres and see what direction it travels. Is there a cheaper way than the expensive imaging gear ?
I looked up the specs and it appears to have a detection range of approx 22 ft maximum which is fine but what is the angle (how wide an area) at which detection will occur?
@@RetroRogersLab - I would say that you could probably wrap a fixed sheet of something like aluminum around let's say 180 degree of the detector that would prevent it from detecting movement along that 180 degrees since that sheet does not move with respect to the detector. That would in effect make it directional.
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 :-)
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?
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
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! :)
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.
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 ?
Excellent video! The speed of instruction is perfect for the average mind and the illustrations are precise and well-synced with the language. But why the dropping resistor? I built the circuit on a breadboard using a 3.3v LED to match the 3.3v level of the output pin. Also, LEDs come in varying voltage ratings; 3.3v being just one. I also want to try replacing the LED with a piezoelectric element to see if the output pin has enough grunt to drive it.
How do i make all the circuits and the sensors that i have used to be wireless and connect it over the network so that the output could be used for some other functionlaity as well.
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
Because I barely see your body movements on the video, which trigger the microvawe module detection, would you be so kind and tell/draw the range (angle) of its detection capabilities? I wanted to mount this one or simillar device in order to automate other device power supply (on/off).
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
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 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
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?
The "CDS" connector allows to set the motion detection to "OFF" status when it's not dark, but is this possible to replace the photosensor switch with a kind of remote controller, in purpose to disable the system?
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?
The ldr-resistor example would be great for a war droid at night in sleep mode.Working on a turret right now.A few gesture sensors paintball gun and some high grade steppers systems.Converting some old solar panels to power it.
I'm hoping to use this for detecting hummingbirds and have a few questions. Is it sensitive enough for small objects such as hummingbirds? Can it be made directional by adding shielding? If yes, what is the best material/thickness for shielding?
This entire channel is gold.
I hate it🤭 - cost me a lot of money😏
Can i mine it 🌝
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.
Perfectly explained! Thank you.
I connected the sensor without Arduino to a "remote doorbell button". Battery operated, small size, can be placed wherever it suits. The bell then rings (or just the LED flashes) when someone enters the controlled zone. Works through walls and doors!
Just watched your tutorial and set up a new rcwl-0516 as I watched. I bought 20 and the 1st one I tested works very well. It's set up in front of the TV pointing back at me and it is very responsive and stable behavior too. Great channel and tutorial. Thanks!
BTW: I didn't mean pointing back at me. Maybe it's radiating in all directions.
Always the best from DroneBot Workshop!!! I just received five RCWL-0516 modules from aliexpress with intentions of setting up security zones for my property , with this very helpful video I think this will be the start of something very interesting, thanks for the upload.
Thank you for this lesson. Works very good for me, I invest 35 minutes in watching your video and I remember it forever!
Excellent tutorial and because of the clear language 100% understandable by non-native-speakers! Thank you so much.
Danke!
Thank you Olof!
Always the best explanation
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
Thanks, Bill, I am impressed with your clear and professional presentation.
Wie immer ein Top-Video.Super und ausführlich erklärt - so sollte es sein.
Extremely well explained and demonstrated. Very high quality content. Thanks a lot.
Thank you for your very clear explanation of RCWL-0521 and its application for the detection of the moving object.
Sir I am happy to see your tools set is kept. Neet and tidy. Very nice sir.
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
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.
Sensational. Your video was really clearly explained with great diagrams and code too. Many thanks.
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!
Sir You are Very good teacher & have very good Knowledge.
Thanks you very much for explaining in simple manner. Keep up teaching and good works.
Crystal clear. Thanks for sharing.
You make the best, most informative videos! Thank you
Sir, your videos are the best videos I ever saw.
Your teaching style is superb. Thank you.
Thank you very much for explaining everything in detail and for demonstrating the connections.
Brilliant channel. Many thanks for your hard work. Love the clarity of your presentations.
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.
As always detailed and helpful. Thank you. Keep doing what you do best. Looking forward to the next project
Beautifully explained. Thank you very much.
Always learn so much from your videos... Thank you!
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
Very useful , your videos are the basics of my electronics foundation sir. Thank you very much
This video is so well done it is amazing. Thank you so much.
You should have far more subscribers than you do, your videos are extremely good.
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
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.
Thanks for all your videos, especially this one. It made it much easier for me working with the RCWL-0516 doppler sensor and it's application. I'm new for this type of module sensors. Thank's again. Mr.G ( PS:I would like to know more abut your newsletter !)
Interesting video and love to see such work shop.
I love your videos, they are all so informative. Thx much.
Great Sir always trying to use modules to their full potential..Love from Pakistan
Dear Sir.
I would like to thank you for your detailed video.
Kind Regards.
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.
18:00 Can you change the led to siren?
Hi, this is the first time I've been here, I'm a retired electronics tech, Marines, not played with electronics much for twenty years, but collected some arduino oriented electronics, off ebay, and low and behold, here's how to use the very module I selected for a burglar/security alarm system for my home. Great teaching skills, very clear explanations, nice easy pace. I look forward to getting caught back up, at least as much as necessary. How did you know I bought that doppler radar device?
Wouldn’t the more correct terminology be motion sensor due to the fact a proximity sensor activates by distance rather than movement?
Exactly. It does not react to proximity at all.
@@zaprodk Yes it does, if you rewatch the theory section of the video you'll see it's operating principal is the Doppler effect. This means there will be a different frequency received by the antenna if something is approaching the sensor and likewise for moving away. Just because the default configuration is setting a pin to high whenever any motion is sensed doesn't mean the sensor is limited to it. I haven't verified it since native English datasheets for these .99$ boards are scant but I'd be wiling to bet you could do some mods and using something like an Ardiuno you'd be able to have a separate input for which direction something is moving in relation to the sensor. I currently don't have an o-scope but it would be trivial to do some probing and get a solid answer for this.
I bought several of these in the past to use as room proximity sensors. I intended to install them in the basement facing upwards to detect movement in rooms above. I thought I would be able to block motion detection below by using several layers of sheet metal, therefore only detecting motion above. I was unable to every get it limited in the way I desired. I wish it was possible to adjust these to direct the microwaves in just one direction. Any tips or do this type of experiment? Perhaps I wasn't using large enough sheets of metal.
i have the same prpblem. if some one walking on the street it gives an alarm.
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;
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.
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.
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.
Great video. I am going to build this proximity sensor that sends data to my iobroker that is going to control other IoT devices in the room.
I have leant a lot from your channel, Thank you veru much.
I want te make a wireless sensor (on battery) for home assistant. Is there a way that the rf transmitter sends a “on” state when motion is detected without using the uno board? Just the sensor and de rf transmitter.
This is an amazing demo
Great video. I absouluty love watching your videos. It is like candy for my brain. :)
Request (please) - I would like a device, Arduino mini or PiZero, used as a counting buffer that will also send a "signal" when the count reaches zero. Using 2 doppler detectors, one doppler affixed OUTSIDE a door jam about belt level, that would send a "count up" signal to a buffer, when approached. The doppler on the INSIDE door jam would ignore all movements going away. However, when LEAVING the space the inside doppler would send a "count down" signal to the buffer. A buffer at "0" would turn off the room lighting. This way several people could enter a room, even stop moving around, but ONLY after the last one leaves would the lights go out (buffer at "0"). Seams doable - right?
Thank you for sharing...
I'm interested in the same solution. I'm curious how much interference there would be between two of these sensors operating in close proximity, opposite sides of drywall or in/on door jamb.
@@RetroRogersLab - I think it will take at least TWO types of sensors on each side. A sonar and IR. This way you can ditigluish between approaching and leaving the "doorway". Anticipating the count. Dig it?
@@r.a.monigold9789 I dug into a RCWL-0516 datasheet and it says they will interfere with each other within 1 meter spacing. :(
@@RetroRogersLab NURTZ ! Well, there is some other way then. Thanks for your efforts here...
@@r.a.monigold9789 I'd still be interested in how well the module responds to having the power cycled, a few times per second perhaps. This would allow the modules to be multiplexed to prevent interference. Additionally, even with sensors on both sides of a door you'd have to figure out how to deal with the situation of different persons approaching from each side of the door, simultaneously. This sounds like a job for Machine Vision! LOL
Thanks for this video, as usual very detailed and well presented. Really useful information.
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.
Thanks. Very clear. That's one incredibly fast train in the Doppler explanation. ;-)
Good channel for teaching practical material thanks
Can it be placed in a enclosure and does that change the range and angle of detection
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
Is there something we can do about the sensitivity of the sensor? I live in a city and when one of my neighbors move, the alarm is set. Even three houses away from my house and through walls.
My understanding, from the product description at www.amazon.com/gp/product/B07MTWZDQZ/, is that you can solder a 1 M-ohm resistor on the bottom side (the R-GN points) to decrease the sensitivity.
@@edtsch Thanks, that's a good link.
Hi Is there a way that you can detect a clay 6 inch pipe route by rattling inside it with a drill rod. I can make it rattle in this way as I can access at a point . How can I follow the sound under ground mbe 4 metres and see what direction it travels. Is there a cheaper way than the expensive imaging gear ?
I looked up the specs and it appears to have a detection range of approx 22 ft maximum which is fine but what is the angle (how wide an area) at which detection will occur?
360 degree detection
@@tejeshwvardhan1165 - Nice! Thanks.
Also, would it be possible to use a reflector to make the beam directional?
@@RetroRogersLab - I would say that you could probably wrap a fixed sheet of something like aluminum around let's say 180 degree of the detector that would prevent it from detecting movement along that 180 degrees since that sheet does not move with respect to the detector. That would in effect make it directional.
Very clear explanation. Excellent job.
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 :-)
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?
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
I have a question. Could It Be used to detect infrared emitters that are pointed out towards the sensor? Thank
Excelentemente explicado, gracias.
Hi thanks for the video as always an excellent instruction on how to use a product top marks thank you, Bob, from the UK
How would I add piezo speaker as well as led light?
Another great lesson. I am really looking forward to the robot build.
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! :)
can you leave on when is percent and off when is not present thank
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.
great video! appreciate your work.
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 ?
Excellent video! The speed of instruction is perfect for the average mind and the illustrations are precise and well-synced with the language. But why the dropping resistor? I built the circuit on a breadboard using a 3.3v LED to match the 3.3v level of the output pin. Also, LEDs come in varying voltage ratings; 3.3v being just one. I also want to try replacing the LED with a piezoelectric element to see if the output pin has enough grunt to drive it.
How do i make all the circuits and the sensors that i have used to be wireless and connect it over the network so that the output could be used for some other functionlaity as well.
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
Is there away to keep the light on at night and turn off during the day?
Because I barely see your body movements on the video, which trigger the microvawe module detection, would you be so kind and tell/draw the range (angle) of its detection capabilities? I wanted to mount this one or simillar device in order to automate other device power supply (on/off).
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
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 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
Hi, will the sensor work behind a mirror? (mirror is plated).
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?
The "CDS" connector allows to set the motion detection to "OFF" status when it's not dark, but is this possible to replace the photosensor switch with a kind of remote controller, in purpose to disable the system?
does this sensor detect stuff around in radius, or it only detects in a pointed direction only?
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?
Impressive ! Good explanation
Hello, the transmitter will not work for me in this module. So how can I turn off the module's transmitter completely?
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?
The ldr-resistor example would be great for a war droid at night in sleep mode.Working on a turret right now.A few gesture sensors paintball gun and some high grade steppers systems.Converting some old solar panels to power it.
I'm hoping to use this for detecting hummingbirds and have a few questions. Is it sensitive enough for small objects such as hummingbirds? Can it be made directional by adding shielding? If yes, what is the best material/thickness for shielding?
Very easy to learn type video. I like it so much thanks
Excelente señor. Excelente su video. Muchas gracias.