esp-wroom-02 wemos D1 esp8266+18650 battery case

The WeMos D1 Esp Wroom 02 Board ESP8266 Mini-WiFi Nodemcu Module 18650 Battery, The development board integrates the ESP8266 18650 battery. When you do some ESP8266 items you must be hated to add power to power. This miniature board can solve this problem. With nodeMCU, 18650 charging system integration and Indication LEDs (green means full and red means · Charging) Charge and work can be done easily at the same time.

Technical Specifications:

1. One AD inputs.
2. Micro USB inputs.
3. One programmable LED (D0).
4. AUTO PROGRAM circuit.
5. ESP8266 (ESP-WROOM-02 With TELEC) is equivalent to the NodeMCU.
6. Analog Input (AD): Built-in dividing resistor (AD = 220K – ADC – 100K = GND).
7. There is a SOLDER terminal for SLEEP MODE.
8. Compatible With Arduino and NodeMCU.
9. Operation and charging are possible at the same time.
10. 18650 charging circuit including the 5V boosting circuit with TP5410.
11. Overcharge protection, over-discharge protection built in.
12. LED: Red = Charging, Green = Full charging.
13. 3000 mA 18650 It is possible to operate for more than 17 hours on a battery.
14. Integrated 18650 battery charging and discharging system.
15. One switch controls whether the 18650 battery is powered or not.
16. The five buttons are controlled by FLASH, RSET, D5, D6, and D7 respectively.
17. The 5 Digital pins can configure the write/read/interrupt/PWM/I2C/one-wire supported separately.