CH340 LCUS-1 USB Port Intelligenter Steuerschalter Serieller Port Relais Zum Selbermachen Modul
3,97 €
Step1: the USB relay module into the computer, install CH340 USB to serial chip driver. Select the baud rate 9600, check the "HEX send", enter the command A0 01 01 A2 or A0 01 00 A1, point "send", you can turn on or off the relay.
Jetzt bei Ebay:
