DIY MQTT PIR Sensor

Here’s the sensor on it’s breadboard:

https://www.instagram.com/p/Bh7mvmUgf-o/

and a little video of it in action

https://www.instagram.com/p/Bh7tQTqAceT/

You can just about make out the shadow of my hand activating it.

When it detects movement it sends a packet of JSON to the MQTT server, and I have various bits of config to drag that out into sensors. In the photo you can see the PIR itself, an LDR to detect light level and I’ve since added a DHT22 which measures temperature & humidity.

The origional idea was from the BRUH Automation vedio here: https://www.youtube.com/watch?v=jpjfVc-9IrQ

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Hello sir, the link is not working. Jan

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I’ve updated the links so they work now.