ESP8266 as Window Sensor with years of battery life - YouTube
Design your own ESP Board for Battery Powered IoT Applications
Battery-Powered ESP8266 Sensor? Never Been Simpler | Hackaday
IoT based Battery Monitoring System using NodeMCU and ThingSpeak
IoT Based Battery Status Monitoring System using ESP8266
ESP8266 Voltage Regulator For LiPo and Li-ion Batteries | Random Nerd Tutorials
Battery Powered ESP8266 WiFi Temperature and Humidity Logger
Pin on esp8266
ESP8266-12 Board with Battery Holder - ESP-12BATTERY
ESP8266 Voltage Regulator For LiPo and Li-ion Batteries | Random Nerd Tutorials
Pinouts | Adafruit Feather HUZZAH ESP8266 | Adafruit Learning System
GitHub - tzapu/DeepSleepDHT22: Battery Powered ESP8266 WiFi Temperature and Humidity Logger
Adventures in deep sleep with ESP8266 and a temperature sensor – Tomas McGuinness
Battery voltage monitor with NodeMCU Esp8266-12E WiFi module
ESP8266 Battery Voltage Monitor Simple – Hilo90mhz
Can i power this 'nodemcu esp8266 v3' using 7.4v or 8v power source in its microusb. actually i have two li-ion battery(3.7v) so , i am going to connect this battery in
ESP8266 battery level meter | ezContents blog
ESP8266 Wireless Dev System - Non-Battery Version from BurgessWorld Custom Electronics on Tindie