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Description
2 Channel DC 12V Relay Module with Optocoupler Low Level Trigger Expansion Board
2 Channel 1. The new 5V Relay Module Can be used as microcontroller development board module can be used as home appliance control 2. 5 V-12V to TTL control signal 3. The control signal DC or AC, 220V AC load can be controlled. 4. There is a normally open and one normally closed contact 5. A power indicator light 6. A control indicator, pull off, disconnect does not shine 7. Transistor drive to increase the relay coil control pins high impedance. 8. The control pin has a pull-down circuit to prevent malfunction relay vacant
