4 Channel 5V USB Computer Switch Intelligent Control Switch USB Controlled Relay Switch USB Controlled Relay Module

USB Controlled Relay Module
$11.94
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Description
4 Channel 5V USB Computer Switch Intelligent Control Switch USB Controlled Relay Switch USB Controlled Relay Module
Product Description

Features

1. Onboard 8-bit high performance microcontroller chip
2. Onboard CH340USB to serial port control chip
3. Onboard power LED indicator and relay status LED
4. Support relay switch status query, query command: OXFF
5. On-board 4-way 5V, 10A/250VAC, 10A/30VDC relay, long life of relay can be continuously sucked 100,000 times;
6. Power supply voltage: 5V, support USB power supply / external power supply switching
7. Output type: relay switch signal
8. Module with overcurrent protection and relay diode freewheel protection
8. Board size: 56*63mm
1
External power supply port: Connect to DC5V power supply. Due to the limited USB output current, it is recommended to use external power supply when using more than 2 relays.
2
USB power supply / external power supply switching: hit Usb_P for USB power supply, hit Ext_P for external power supply;
3
USB socket: USB communication / power supply;
4
Reserve the USB pin header interface.

Relay interface introduction:

COM1: Common end;
NC1: Normally closed end, shorted to COM1 before the relay is closed, suspended after suction;
NO1: Normally open end, the relay is suspended before being sucked, and shorted after COM1.
COM2: Common end; NC2: Normally closed end, short-circuited with COM2 before the relay is closed, suspended after suction; NO2:
Normally open end, the relay is suspended before being sucked, and short-circuited with COM2 after suction.
COM3: Common terminal;
NC3: Normally closed end, short-circuit with COM3 before the relay is closed, and suspended after suction;
NO3: Normally open end, the relay is suspended before being sucked, and short-circuited with COM3 after suction.
COM4: Common terminal;
NC4: Normally closed end, short-circuit with COM4 before the relay is closed, and suspended after suction;
NO4: Normally open end, the relay is suspended before being sucked, and short-circuited with COM4 after suction.

Instructions

2.1, communication protocol description:
· Serial port baud rate: 9600BPS
The switch and status query commands are as follows (HEX form):
Open the first USB switch: A00101A2 turns off the first USB switch: A00100A1
Open the second USB switch: A00201A3 turns off the second USB switch: A00200A2
Open the third USB switch: A00301A4 turn off the third USB switch: A00300A3
Open the fourth USB switch: A00401A5 turns off the fourth USB switch: A00400A4 Query switch status: FF

2.2, instructions for use:
·Select power supply mode
(1) USB power supply: USB to the computer, the toggle switch to the Usb_P end
(2) External power supply: USB is connected to the computer, the toggle switch is connected to the Ext_P terminal, and the DC socket is connected to the external 5V power supply.
Details Images