DC 5/12/24V 8CH USB Serial Port Relay Module UART RS232 TTL Switch Board CH340
ab 2,96 €
3 UART serial port protocol, supports two interfaces, USB_B female interface (CH340 serial port chip), RS232 interface (TTL level). 4: DC 5V/12V/24V (optional). 2 Working current (DC 12V): Standby 12MA, 1 relay on 40MA, 2 relays on 67MA, 3 relays on 95MA, 4 relays on 121MA, 5 relays on 147MA, 6 relays on Through 173MA, 7 relays through 198MA, 8 relays through 223MA.
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