Relè USB 1/2/4/8 canali 5V 12V modulo relè controllo computer programmabile
Dll, usb_relay_device. lib, usb_relay_device. It’s used the HID technology, so no need to install any driver in windows system and you can easy to use. Songle 5V Relay. 1 Channel 5V. Relay Type. 2 Channel 5V.