ESPmobe - battery powered ESP8266 IoT-sensor | Hackaday.io | Electronics projects, Iot, Pro tip
Battery Powered ESP-01 Temperature Sensor - Technology Spy
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
IoT Based Battery Status Monitoring System using ESP8266
Adventures in deep sleep with ESP8266 and a temperature sensor – Tomás McGuinness
boost - NodeMCU power via battery + battery charger + booster - Electrical Engineering Stack Exchange
lua - Check the battery status with NodeMCU? - Stack Overflow
Design your own ESP Board for Battery Powered IoT Applications
ESP8266: Monitoring Power Consumption • ThingPulse
Battery Powered ESP8266 IoT - Door Sensor - Home Circuits
Running NodeMCU on a battery: ESP8266 low power consumption revisited – Tinkering with Technology