رسمية احذف للتأكيد esp on battery saver circuit وبخ الحكم الذاتي حافة
GitHub - frolswe/esp-battery-logger: Simple project for the esp8266 using the power saving features of the chip to test the possibility of battery powered sensors.
ESP8266 Deep Sleep Mode - How to Use Deep Sleep Mode for Power Saving
Battery voltage monitor with NodeMCU Esp8266-12E WiFi module