Battery Powered ESP8266 WiFi Temperature and Humidity Logger
ESP8266 Voltage Regulator For LiPo and Li-ion Batteries | Random Nerd Tutorials
Design your own ESP Board for Battery Powered IoT Applications
Battery-Powered ESP8266 Sensor? Never Been Simpler | Hackaday
IoT Based Battery Status Monitoring System using ESP8266
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
GitHub - tzapu/DeepSleepDHT22: Battery Powered ESP8266 WiFi Temperature and Humidity Logger
ESP8266 Wireless Dev System - Non-Battery Version from BurgessWorld Custom Electronics on Tindie
ESP8266 Thing Hookup Guide - SparkFun Learn
ESP8266-12 Board with Battery Holder - ESP-12BATTERY
IoT based Battery Monitoring System using NodeMCU and ThingSpeak