Application
The relay module can be applied in an automatic control circuit, used as a module for MCU development boards, or as household appliances control.

Component List
-1 * Relay Module
-1 * 3-Pin anti-reverse jumper wire
Relays are suitable for driving high power electronic devices such as lights, fan and condition. This relay module can be used to control high voltages with a low voltage by connecting to an MCU
Controls DC or AC signals – 220V AC load
Working voltage: 5v; PCB size: 2.0 x 4.3 cm
With power indicator and signal output indicator
Working principle: when a high level is given to SIG, the PNP transistor is energized, coil of the relay electrified, and the indicator lights up; when a low level is given, PNP will be de-energized, the original state is restored and the indicator goes out then