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Arduino 1 Channel relay module KY-019
Arduino 1 Channel relay module KY-019
- The KY-019 Relay Module is used to control AC circuits.
- It functions as a switch in response to an Arduino input, and an embedded LED shows whether the signal is high or low.
- Compatible with Arduino, Raspberry Pi, ESP32, and other microcontrollers, it is frequently used in Internet of Things projects to control lighting and other electronic equipment.