Relay Module (1 Channel - 5V) 7490 height: 100%

height: 100%

Water Dispenser

passive buzzer requires an AC signal to make a sound

Its 4 pin allows for individual control of each red

Relay Module (1 Channel - 5V) 7490 height: 100%Introduction : It is a 1 channel relay board, which can be controlled directly by a wide range of microcontrollers such as Arduino, AVR, PIC, ARM, PLC, etc. It is also able to control various appliances and other equipment with large current. used where it is necessary to control a circuit by a low power signal (with complete electrical isolation between control and controlled circuits), or where several circuits must be controlled by one signal.