Wireless Sauna Thermometer
This is a wireless Sauna Thmerometer using a base with Arduino Mini Pro and mutiple clients using a panel voltmeter with 0V - 3V input voltage (e.g. 44C2) as display and an Arduino Mini Pro.
Radio Transceiver used is CC1101 and the forked lib from https://github.com/SpaceTeddy/CC1101. Tested range is up to 40m with working temperature up to 110 degC. Base and client are optimized for long battery life.