Home > Arduino & SCM Supplies > 5V
5V Relay Module for Arduino - Blue
1£¬ new 5V Relay Module; 2£¬ can be used as microcontroller development board module can be used as home appliance control; 3£¬ 5V to TTL control signal; 4£¬ the control signal DC or AC£¬ 220V AC load can be controlled; 5£¬ there is a normally open and one normally closed contact; 6£¬ a power indicator light; 7£¬ a control indicator£¬ pull off£¬ disconnect does not shine; 8£¬ transistor drive to increase the relay coil control pins high impedance; 9£¬ the control pin has a pull-down circuit to prevent malfunction relay vacant.