The Wemos D1 Mini is a compact ESP8266-based development board with integrated 18650 battery support, perfect for IoT projects requiring WiFi connectivity in a small form factor.

Microcontroller: ESP-8266EX Operating Voltage: 3.3V Digital I/O Pins: 11 (all I/O pins have interrupt/pwm/I2C/one-wire capability, except for D0) Analog Input: 1 Programmable LED: 1 (D0) USB Interface: Micro USB Programming Support: Arduino IDE Flash Memory: Larger than Arduino Uno Processor: 32-bit Battery Support: 18650 (up to 3000mAh) Battery Life: Up to 17 hours with 2600mAh battery Layout: Arduino-compatible (NOT an Arduino board)

