iBeacons for room based temperature sensors?

[sihui]

If you just want cheap temp sensors (under 5 $) take a look at

DIY: Cheap wifi-based temperature/humidity sensor based on ESP8266 & DHT22

Hi, just completed my first hardware project for my OpenHAB setup: A simple and cheap wifi sensor for temperature and humidity. This is how the sensor data looks in the classic UI: [image] Look for “Temperatur” and “Luftfeuchtigkeit” - my interface language is German. The sensor is based on the cheap ESP8266 wifi microcontroller and a DHT22 temperature/humidity sensor. It looks like this: [image] The PCB is around 5x5cm and can be built in 30 minutes from scratch. If you want to know more,…