Lcus-1 5V USB PLC Serial Control Relay Module

If you need to control power via your computer’s USB port, this is the right one to choose. Lcus-1 5V USB PLC Serial Control Relay Module has a CH340 USB to serial interface chip, and a STM8S103 MCU as a gateway to receive command and then control the relay to turn on and off. The relay module (SRD-05VDC-SL-C) can load up to 10A 250VAC power with no issue, that is enough for most of the applications.

This module is ideally suited to controlling multiple larger voltages within a project. This is a 1 channel relay module which can be used to activate up to 250V AC and 30V DC. This allows you to build in device control, operating remote lights or triggering systems when the module is supplied with a signal. This signal can come from a range of sources including most standard USB connections.

Install the CH340 driver, write a few lines of codes, then developers can control a relay module. There are two LED indicators, one is for USB port connection and one is for relay on and off status.

Features:

• onboard high-performance micro-controller chips.
• onboard CH340 USB control chip.
• onboard LED power lights and relay status LED lights.
• onboard 5 v,10 A / 250 VAC,10 A / 30 VDC relays, relay’s long life can absorb 100000 times in a row.
• over-current protection and relay diode current protection  function.

Specifications:

Input DC Voltage:	5V
Actuation Time	<10ms
Channels	1
USB Powered	Yes
Baud Rate	9600BPS
Relay Lifetime	100K times
Relay Contact Rating	AC 250V 10A, DC 30V 10A
Onboard Components	Power LED, Relay LED
Dimensions	63 x 16.3 x 19.2mm
Weight	15g

LC USB switch communication protocol

• Data (1) – startup logo (the default is 0 xA0)
• Data (2) – switch address code (the default is 0 x01, identifies the first switch)  
• Data (3) – operation data (0 x00 to “off”, 0 x01 to “on”)
• Data (4) – check code

For example:

• Open the USB switch:A0 01 01 A2
• Close the USB switch: A0 01 00 A1

Package Includes:

• 1 x Lcus-1 5V USB PLC Serial Control Relay Module