The two modules are installed on the same building, one on the East side and one on the West side. Location: Athens, Greece. Hardware: ESP8266 running on nodeMCU firmware with DS18D20 sensor.
An LND7317 tube has been connected through the Theremino Geiger sensor to an ESP8266 (Tasmota firmware). Every minute, a node.js app asks for the current count though MQTT, makes the CPM to uSv/h conversion, and finally sends it to ThingSpeak. Enjoy! :-)
Water softener salt level monitor. Sensor uses ESP8266-12 & HC-SR04 ultrasonic sensor. Remote uses ESP8266-12e & Nokia 5110 LCD to display the level.