I am looking for a Soil Moisture sensor (Zigbee/Z-Wave) for my plants indoor. I have seen the Spruce thread (Spruce Zigbee Soil Moisture Sensors - driver needed?) but that does not seem to give very accurate readings?
Anyone know of some nice working alternatives?
Could something like this (https://www.seeedstudio.com/Grove-Capacitive-Moisture-Sensor-Corrosion-Resistant.html) be combined with a simple Zigbee transmitter? Or will an RPi be neccessary?