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Your cart is empty. Hardware introduction and description
Board size: 56 x 63mm
Board Interface Description:
COM1: common;
NC1: normally closed;
NO1: normally open.
.........
COM4: common;
NC4: normally closed;
NO4: normally open.
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 4-channel relay switch: A0 04 01 A5
Turn off the 4-channel relay switch: A0 04 00 A4
Relay ON/OFF status query command: 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
Usage Description:
1. Connect the USB relay module to the computer and install the CH340 USB to serial chip driver
2. Open the STC-ISP, SSCOM32 such serial debugging software, select the baud rate of 9600, in hexadecimal (hex) form send A0 01 01 A2 and A0 02 01 A3 can be opened the first and second relay ; Send in hexadecimal (hex) A0 01 00 A1 and A0 02 00 A2 can be turned off the first and second relay, respectively.
Package Included:
1pcs NOYITO 4-Channel Micro USB Relay Module
Nick9876
Reviewed in the United States on May 1, 2024
Great Micro-USB Relay Module; easy to use in my project.
Customer
Reviewed in the United States on July 11, 2023
First one DOA..no USB handshake. Second worked initially, but then failed in a month. Too late to return. Sigh.
Wooyoung So
Reviewed in the United States on May 23, 2023
I tried to build four-channel digital Output and switches and tried other relays. So far, this is the best with respect to driver installation and operation. Other relays required unclear drivers or extra command-based program, which is downloadable, through RS232, while this one requires CH340 driver, which is included in my most Windows 10 machines. Reliability still needs to be verified but it works fine so far. If you want to code your own operating program, make sure to send out hexadecimal, which is totally depending on your platform.
John R
Reviewed in the United States on November 11, 2023
Interface is a simple part serial interface, easy to implement in code. Had been writing great in all automated setup for a month now.
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