DC Power Shield V1.1.0 for WEMOS D1 mini development board

What it is: A power supply expansion shield designed to stack directly onto the Wemos/LOLIN D1 Mini (ESP8266/ESP32) development board, allowing it to be powered by external DC voltages.

Key Specs:

• Input Voltage: Accepts 7V to 24V DC via an onboard standard $2.1\text{mm}\times 5.5\text{mm}$ barrel jack.

• Output Voltage: Regulates higher input DC down to a stable 5V DC output (typically supplying up to 1A max output current) to power the D1 Mini and attached shields.

Key Features: Compact stackable form factor, built-in power conversion circuitry, and input reverse-polarity protection.

Common Uses: Running Wi-Fi / IoT nodes off external 9V, 12V, or 24V DC power adapters or battery packs instead of requiring a Micro-USB cable.