12V 8 Channel Relay Module for any microcontroller TTL interface with 7A load capacity for switching AC or DC
- Can be used as microcontroller development board module can be used as home appliance control
- 12V to TTL control signal
- With the The DC control signal, 220V AC load can be controlled.
- here is a normally open and one normally closed contacts with 3 terminal screw blocks for easy interface.
- power indication LED
- A control indicator
- Transistor driven
- The control pin has a pull-down circuit to prevent malfunction of the relays.