A general purpose Relay board for connection to a PC's USB port using VCP (Virtual COM port). Control devices using your PC. USB Relay controller allows a PC to control external devices using simple RS232 commands. Relay is fully powered from the USB bus.

Features:
- Fully assembled and tested.
- Fully powered from USB
- For 12V/24V DC 15A or 120V/220V AC at 10A max.
- Can be used with  LabVIEW, ProfiLab, DAQFactory, TestPoint, DASYLab, VEE

Dimensions:
100 mm / 62 mm / 26 mm

Relay datasheed:
www.kmtronic.com/manuals/RAS.pdf

Drivers :
Are available to work with the following operating systems :
All Windows systems, Linux, Mac OS X, Mac OS 9, Mac OS 8,
Windows CE.NET (Version 4.2 and greater), Raspberry Pi, Arduino ADK, Arduino with USB Host Shield

Communication Parameters:
8 Data, 1 Stop, No Parity
Baud rate : 9600

Commands:
FIRST relay commands
"FF 01 00" - OFF command
"FF 01 01" - ON command
SECOND relay commands
"FF 02 00" - OFF command
"FF 02 01" - ON command

NOTE : Each command consists in 3 binary bytes (shown in hexadecimal below) without any space!

Software Examples:
http://www.kmtronic.com/usb-rs232-rs485-relays.html

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