5V/12V USB Relay 1/2/4/8 Ch Programmable Computer Control Relay For Smart Home
ab 8,82 €
Dll, usb_relay_device. lib, usb_relay_device. (include usb_relay_device. OLED LED&RGB. 3 Use the special relay driver chip ULN2803, relay work more stable. Songle 5V Relay. It’s used the HID technology, so no need to install any driver in windows system and you can easy to use. ).
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