With this shield, the D1 Mini is extended by the addition of a relay. • Supply voltage: 5V • High-load relay change (10 A/250 V AC) • Requires high level to switch Pin assignment • 5 V: 5-V supply voltage • D1: Signal pin • GND: Earth Note: Supplied with 2 pin headers https://elecena.pl/product/19018610/d1-shield-relay 2021-07-08 https://elecena.pl/product/19018610/d1-shield-relay 2021-10-20