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5V Relay 8 Channel Module for Raspberry Avr Pic Low Level Trigge The 5V relay module is suitable for SCM development, home appliance control. It is with 5V~12V TIL control signal which can control DC / AC signal. The module is perfect for common application. - Color: Blue + black - Suitable for SCM development, home appliance control - 5V-12V TTL control signal, can control DC/AC signal - Can control 220V AC load Useful to control a motor, a led strip, or any other module using . How to use it: Just connect a digital output of your to your relay module, and you can control a power-demanding appliance with the digital signal provided by your .