August 15, 2022 - We updated the product and fixed some unstable bugs. We will continue to upgrade the product in the future.

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Features
Onboard high-performance micro-controller chip.
OnBoard CH340 USB controller chip.
Onboard Power LED and relay status LED.
Onboard 5V, 10A / 250VAC, 10A / 30VDC relay, relay life long continuous pull 100,000 times.
Relay modules with overcurrent protection and freewheeling diode protection.

Interface Description:
NC: Relay normally closed interface.
COM: Relay common interface。
NO: Relay normally open interface.

USB switch default communication baud rate: 9600BPS.
USB switch communication protocol
Data (1) --- start flag (default is 0xA0)
Data (2) --- switch address codes (0x01 the first switch)
Data (3) --- operating data (0x00 is "off", 0x01 is "on")
Data (4) --- check code
For example:
Turn on the relay switch: A0 01 01 A2
Turn off the relay switch: A0 01 00 A1

Usage Description:
1. Connect the USB relay module to the computer and install the CH340 USB to serial chip driver
2. Open the serial debugging software, select the baud rate of 9600, in hexadecimal (hex) form send A0 01 01 A2 open the relay ; Send in hexadecimal (hex) A0 01 00 A1 turn off the relay
You can choose to send manually or automatically.

Pacakge Included:
1pcs NOYITO 1- Channel USB Relay Module