24 Jul DIYables 3pcs Relay Module for Arduino, ESP32, ESP8266, Raspberry 3.3v – 5v
High-level trigger or low-Level trigger selection by a jumper. - Optocoupler isolation. - Two LED indicators: power (green LED), the relay status (red LED). - Trigger current: 5mA. - IN: Signal trigger input (3.3V to 5V, high or low level signal selected via a jumper)....