Features: 1.Working Temperature: -20°C to +70°C 2. Board Size and Weight: 1-Channel Module : 61x16 x 17 mm(LWH) / 15 Grams 2-Channel Module : 47 x 33 x17 mm(LWH) / 25 Grams 4-Channel Module : 65 x 47 x 17 mm (LWH) / 50 Grams 8-Channel Module : 80 x 75 x17 mm (LWH) / 98.5 Grams Hardware introduction and description Board Interface Description: COM1: 1-channel common port; NC1: 1-channel normally closed port; NO1: 1-channel normally open port . .... COM8: 8-channel common port; NC8: 8-channel normally closed port; NO8: 8-channel normally open port . VID and PID number of the relay's module: VID: 5131 PID: 2007 Generally, it is a fixed value and does not need to be changed. Communication protocol description: Default communication baud rate: 9600BPS Turn on the 1-channel relay switch: A0 01 01 A2 Turn off the 1-channel relay switch: A0 01 00 A1 Turn on the 2-channel relay switch: A0 02 01 A3 Turn off the 2-channel relay switch: A0 02 00 A2 Turn on the 3-channel relay switch: A0 03 01 A4 Turn off the 3-channel relay switch: A0 03 00 A3 ...... Turn on the 8-channel relay switch: A0 08 01 A9 Turn off the 8-channel relay switch: A0 08 00 A8 This series of HID relay devices cannot query the relay status by entering the code "0xFF". USB switch communication protocol Data (1) --- start flag (default is 0xA0) Data (2) --- switch address codes (0x01 and 0x02 represent the first and second switches, respectively) Data (3) --- operating data (0x00 is "off", 0x01 is "on") Data (4) --- check code Package Included: 1pcs NOYITO HID Drive-free USB Computer Control Switch Relay Module

NOYITO HID Drive-free USB Module Debugging Software https://1drv.ms/u/s!AlzQUCOyZQhKfWGxZnyvgKPklo0?e=iFkUVF. ******NOTE******: When using it, you need to insert the module first and then open the control software. (For example if using the 2-Channel and 4-Channel versions of the module on the same computer, unplug the 2-Channel module first, close the control software, then plug in the 4-Channel module and open the control software again. So that the control software will automatically identify the module model.). On-board 5V, 10A/250VAC, 10A/30VDC relay, long relay life, can work 100,000 times continuously. Working current: 20mA +1 relay triggers 70mA. (NOTE: The output voltage of the USB port of the computer is DC5V, Current = 500mA. So, an external power supply is required to trigger the 8-channel relay module, and the external power supply is =5V1A. Onboard high performance HID control chip.With power LED indicator and relay status LED. NOYITO 1 / 2 / 4 / 8-Channel USB / Micro USB Relay Module is equipped with a stable HID control chip. It can use the HID debugging software to send commands on the computer to control the opening and closing of the relays.