Comments on: Arduino with RCWL-0516 Microwave Radar Proximity Sensor (Detect Motion) https://randomnerdtutorials.com/arduino-rcwl-0516/ Learn ESP8266, ESP32, Arduino, and Raspberry Pi Thu, 05 Jun 2025 05:43:55 +0000 hourly 1 https://wordpress.org/?v=6.8.2 By: Sparks_51 https://randomnerdtutorials.com/arduino-rcwl-0516/#comment-1054891 Thu, 05 Jun 2025 05:43:55 +0000 https://randomnerdtutorials.com/?p=133828#comment-1054891 In reply to Emilio.

Great question. I’ll have to look into how to do that and try it. Thanks!

]]> By: Emilio https://randomnerdtutorials.com/arduino-rcwl-0516/#comment-1045540 Sun, 18 May 2025 17:09:24 +0000 https://randomnerdtutorials.com/?p=133828#comment-1045540 ]]> In reply to Sparks_51.

Cannot you turn off the gpio used for the hc-12 while reading from the radar? And then to off the radar and turn back on the hc-12🤷🏻‍♂️

]]> By: Sparks_51 https://randomnerdtutorials.com/arduino-rcwl-0516/#comment-1045443 Sun, 18 May 2025 04:49:31 +0000 https://randomnerdtutorials.com/?p=133828#comment-1045443 How do I prevent an hc-12 module from interfering with the operation of the radar module? Once the radar module outputs its signal, It never stops! It won’t go low. I have a great idea for a system that uses the radar module to enable an hc-12 module to signal another hc-12 module in my house but I have to get them both to work together! I even changed the transmit frequency of the hc-12 and that did not help. I would appreciate any help, THANKS!

]]> By: Emilio https://randomnerdtutorials.com/arduino-rcwl-0516/#comment-1016996 Sun, 16 Mar 2025 10:17:43 +0000 https://randomnerdtutorials.com/?p=133828#comment-1016996 Hi, Does anyone know if long exposure of these microwave “waves” are harmful to human body?

]]> By: Gvg https://randomnerdtutorials.com/arduino-rcwl-0516/#comment-970806 Fri, 11 Oct 2024 14:47:31 +0000 https://randomnerdtutorials.com/?p=133828#comment-970806 What’s the point of an LDR pins on the sensor if you have to use it with the microcontroller anyway? Why not connect LDR to the microcontroller then? You will be able to switch the sensor off completely during the light times.

]]> By: T Quadir Choudhury https://randomnerdtutorials.com/arduino-rcwl-0516/#comment-955251 Mon, 09 Sep 2024 09:54:19 +0000 https://randomnerdtutorials.com/?p=133828#comment-955251 Tells us all there is to know really. Somewhere I read somewhere that the field of coverage is 360 degree, was wondering if the module is to be kept in a certain orientation ( say vertical) to get that effect

]]> By: Noel https://randomnerdtutorials.com/arduino-rcwl-0516/#comment-884207 Mon, 15 Jan 2024 19:41:15 +0000 https://randomnerdtutorials.com/?p=133828#comment-884207 By connecting to the CDS Pin, via a resistor to another I/O pin on the Arduino, surely it would be possible to vary the light sensitivity threshold by driving the I/O pin high or low ? A PWM Pin and capacitor or a full Digital to Analogue converter used to drive this pin would be even better ?

]]> By: Sara Santos https://randomnerdtutorials.com/arduino-rcwl-0516/#comment-859155 Fri, 08 Sep 2023 08:48:18 +0000 https://randomnerdtutorials.com/?p=133828#comment-859155 In reply to JERRY KORNBAU.

Hi.
Thanks for letting me know.
It’s fixed now.
Regards,
Sara

]]> By: JERRY KORNBAU https://randomnerdtutorials.com/arduino-rcwl-0516/#comment-859079 Thu, 07 Sep 2023 21:28:35 +0000 https://randomnerdtutorials.com/?p=133828#comment-859079 May want to change the value of the resistor to 220 ohm instead of 220k ohm.

]]> By: Sara Santos https://randomnerdtutorials.com/arduino-rcwl-0516/#comment-858920 Wed, 06 Sep 2023 23:14:08 +0000 https://randomnerdtutorials.com/?p=133828#comment-858920 In reply to John.

Hi.
I’m sorry. It was my mistake during copy/paste.
It’s already fixed.
Regards,
Sara

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