Author: thomasl

Philips Hue motion sensor Teardown

I’m using my hue sensor in openhab and really like them, I was looking for some nice teardown pictures of the hue motion sensor, but could only find the Hue dimmer switcch dissection & Hue tap Dissection

Since I’m pretty curious what’s inside, and how they get this good batterylife I will dissassemble one of my hue motion sensors in the name of science to see what’s in there, I hope I can help someone else out with these.

I’ll try to compile a list of the items I find on the board, if you have any additions please let me know 🙂
– Atmega M2564RFR2-ZU
– 4mb serial flash 25fu406c
– Some type of Pir motionsensor

p6200154

ESP8266 & DHT22 Lowpower MQTT Sensor

For my project where I control my remote via pnps I want to create a low power sensor which will be able to send humidity & temperature data to my openhab server which is running mosquitto

Since I have some esp8266 chips laying around, this would be great to setup as a wifi mqtt sensor with the dht22, which will periodically (every 10 minutes) send new sensor data to my mqtt broker.

A quick video how to get a basic breadboard setup:

I will need it to be pretty energy efficient, so whenever the esp is done sending data, it will go into deepsleep for 10 minutes, and then wakeup and send again…