This project is mounted behind a solar panel which charges batteries that power the ESP8266 that hosts this project. The esp8266 in combination with a homemade fz0430 (voltage detector) measures the remaining battery and posts it here.

ESP8266-01 + BME280 + 5V 60mA Solar Panel + 2x AA NiMH rechargeable batteries https://github.com/preechaim/esp8266-bme280-ts

Currently, this Nodemcu is used to measure the capacity from recycled 18650 notebook batteries. Values maybe empty before new battery start.

Solar powered WinLINK Station W4SVI-10 on 145.030MHz located in EL95sl

Measuring temperature and humidity inside my hive in Anchorage, Alaska. Reading taken every 5-6 minutes. Gauges may take 15 seconds to display proper values

IBEM ESP32-C3 IoT Battery Energy Monitor - Solar Test System. Example Real-Time Test Site Data taken from IBEM. Graphs provide basic quick overviews. Granular data available. Many other Variables can be exported. Various graph and widgets can be easily co

This device is used to get the wifi connection status of the Internet service at Gwakwani

Soil Moisture MeteoFabro 01

sprinkler

Air temperature and humidity, including air pressure and inside air quality sensors running on an ESP32 and a solar powered ESP8266.

Battery Monitor Reading from my BMV 700

Keeping track of my solar charge controller

Beehive scale from minebier.dk

Battery data send by Android Tasker application.

Solar WiFi Repeater