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Esp8266 Esp-32 18650 Battery Shield Wifi Bluetooth Dht11 Cp2104 Temperature Humidity Soil Moisture Sensor Module For Arduino - Integrated Circuits - AliExpress
![I recently finished the prototype for a battery powered ESP8266 based temperature and humidity sensor with eInk display. Currently working on a custom PCB. : r/arduino I recently finished the prototype for a battery powered ESP8266 based temperature and humidity sensor with eInk display. Currently working on a custom PCB. : r/arduino](https://preview.redd.it/q0c5386r08p61.jpg?auto=webp&s=01b66cd34813e206ebea76dd37bf3521c667a8bc)
I recently finished the prototype for a battery powered ESP8266 based temperature and humidity sensor with eInk display. Currently working on a custom PCB. : r/arduino
![ESP8266 Development Board Battery and Solar Powered with OLED display Sensor integrated, LDO voltage regualtor and Battery Monitoring System - Share Project - PCBWay ESP8266 Development Board Battery and Solar Powered with OLED display Sensor integrated, LDO voltage regualtor and Battery Monitoring System - Share Project - PCBWay](https://pcbwayfile.s3.us-west-2.amazonaws.com/web/22/08/28/0755580208244m.png)
ESP8266 Development Board Battery and Solar Powered with OLED display Sensor integrated, LDO voltage regualtor and Battery Monitoring System - Share Project - PCBWay
![Just my battery operated ESP8266 enviro sensor node with OTA update - Projects made with Blynk - Blynk Community Just my battery operated ESP8266 enviro sensor node with OTA update - Projects made with Blynk - Blynk Community](https://community.blynk.cc/uploads/default/original/2X/4/48347c68577b871eab321a42afc6b75ca1d31ed5.png)