PIR Motion Sensor - WEMOS D1 Mini + HC-SR501 - Philips Hue

thingiverse

After building one of Qrome's fantastic print monitors, I noticed how closely in size the OLED module matched a PIR sensor that happened to be on hand. So instead of rehashing what was already available and creating an entirely new body for the motion sensor, I remixed Qrome's casing. I had to extend the case lengthwise to accommodate a slightly larger Wemos d1 mini board (34.5mm) and also increase the height to fit the HC-SR501 PIR sensor. I drilled screw holes in place of screws needed to secure the PIR, but it fits snugly in place without glue or any need for additional fasteners. I'm using mine as a motion sensor for Philips Hue lights, but it can be repurposed for whatever application suits your needs. For anyone looking to try this: I employed the code from here: https://github.com/LeskoIam/esp8266Huemotion I added an NTP server to the code. I'm using uk.pool.ntp.org, so search for that line and replace it with your local region's equivalent. The device will turn on a light (or group of lights) at full brightness between 5pm and 12am, and at 45% brightness between 12am and 5am. My customized code can be found here: https://pastebin.com/UKCAas3P You'll need to register a user on your hue bridge. Details for doing this are listed here along with basic information about the Hue API: https://developers.meethue.com/develop/get-started-2/ My code uses the user "newdeveloper" as per the Hue getting started guide.