![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)
Just my battery operated ESP8266 enviro sensor node with OTA update - Projects made with Blynk - Blynk Community
![Diymore Wemos Mini D1 Esp8266 Wifi Wireless Nodemcu Module Development Board 18650 Battery Case Esp-wroom-02 For Arduino - Integrated Circuits - AliExpress Diymore Wemos Mini D1 Esp8266 Wifi Wireless Nodemcu Module Development Board 18650 Battery Case Esp-wroom-02 For Arduino - Integrated Circuits - AliExpress](https://ae01.alicdn.com/kf/HTB1jB8rS5rpK1RjSZFhq6xSdXXai/diymore-WeMos-Mini-D1-ESP8266-WiFi-Wireless-NodeMcu-Module-Development-Board-18650-Battery-Case-Esp-Wroom.jpg)
Diymore Wemos Mini D1 Esp8266 Wifi Wireless Nodemcu Module Development Board 18650 Battery Case Esp-wroom-02 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)