Esp8266 D1 Mini Pro Wifi Nodemcu Data Logger Shield Ds1307 Battery 0.66 Oled Dc Power Buzzer V1.0.0 Dual Base For Wemos Diy Kit|Integrated Circuits| - AliExpress
ESP8266 IOT Board(Arduino IDE or NodeMCU Lua Programming) - Elecrow
Lolin NodeMCU ESP8266 with BME280 and Li-ion battery and his regulator... (RGB led just for status indicator) : r/esp8266
Running a WeMOS/NodeMCU off a 18650 battery
DSTIKE Deauther MINI ESP8266 WIFI Development Board OLED NodeMCU with 2dB Antenna Battery Connector|Instrument Parts & Accessories| - AliExpress
Check the battery status with NodeMCU? - Stack Overflow
Adventures in deep sleep with ESP8266 and a temperature sensor – Tomas McGuinness
Resetting of NodeMCU ESP8266 in deep sleep - Electrical Engineering Stack Exchange
A simple NodeMCU / BME280 Weatherstation with WaveShare E-Paper 1.54 inch Display | IT-mechanics
Geekcreit® D1 ESP-Wroom-02 Motherboard ESP8266 Mini-WiFi NodeMCU Module ESP8266 Sale - Banggood USA sold out-arrival notice-arrival notice
Running NodeMCU on a battery: ESP8266 low power consumption revisited – Dangerous Prototypes
RUNNING NODEMCU ON A BATTERY: ESP8266 LOW POWER CONSUMPTION REVISITED | Iot projects, Hobby electronics, Arduino