![RELEASE] DIY Light Sensor with mains and battery power (ESP8266, NodeMCU, D1 Mini) - Connected Things - SmartThings Community RELEASE] DIY Light Sensor with mains and battery power (ESP8266, NodeMCU, D1 Mini) - Connected Things - SmartThings Community](https://global.discourse-cdn.com/smartthings/original/3X/8/c/8c40b85f0d8574615060b43d9bd2b69289f51219.jpeg)
RELEASE] DIY Light Sensor with mains and battery power (ESP8266, NodeMCU, D1 Mini) - Connected Things - SmartThings Community
![Esp8266 Mini Wifi Nodemcu Module 18650 Charging Battery Development Board Nodemcu Pwm I2c For Wemos D1 Esp-wroom-02 Mother Board - Integrated Circuits - AliExpress Esp8266 Mini Wifi Nodemcu Module 18650 Charging Battery Development Board Nodemcu Pwm I2c For Wemos D1 Esp-wroom-02 Mother Board - Integrated Circuits - AliExpress](https://ae01.alicdn.com/kf/Hb1bfa7c88416492fa43d3d00a5f87a4aY.jpg)
Esp8266 Mini Wifi Nodemcu Module 18650 Charging Battery Development Board Nodemcu Pwm I2c For Wemos D1 Esp-wroom-02 Mother Board - Integrated Circuits - AliExpress
![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 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](https://i.redd.it/6qquknlzh5d71.jpg)
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
![For Wemos D1 Esp8266 Mini Wifi Wireless Nodemcu Module 18650 Battery Development Board Esp-wroom-02 Motherboard 1a Pwm I2c - Integrated Circuits - AliExpress For Wemos D1 Esp8266 Mini Wifi Wireless Nodemcu Module 18650 Battery Development Board Esp-wroom-02 Motherboard 1a Pwm I2c - Integrated Circuits - AliExpress](https://ae01.alicdn.com/kf/HTB1TxWidfWG3KVjSZPcq6zkbXXaq/For-WeMos-D1-ESP8266-Mini-WiFi-Wireless-Nodemcu-Module-18650-Battery-Development-Board-Esp-Wroom-02.jpg_Q90.jpg_.webp)
For Wemos D1 Esp8266 Mini Wifi Wireless Nodemcu Module 18650 Battery Development Board Esp-wroom-02 Motherboard 1a Pwm I2c - Integrated Circuits - AliExpress
![ESP8266 - Li-Ion Battery Rechargeable Battery Power Solution : 4 Steps (with Pictures) - Instructables ESP8266 - Li-Ion Battery Rechargeable Battery Power Solution : 4 Steps (with Pictures) - Instructables](https://content.instructables.com/F7X/CECJ/I8BGIARY/F7XCECJI8BGIARY.jpg?auto=webp&fit=bounds&frame=1&auto=webp&frame=1&height=300)