SainSmart USB 4 Channel Relay Automation (12V)
OverviewThis USB Relay Controller/Data Acquisition Module allows computer controlled switching of external devices as well as full bi-directional communication with the external world (ideal for Data Acquisition applications) using the USB port of your computer. The controller is very flexible and can be used in many custom applications including weather stations as well as temperature monitoring, logging and control as it can be easily connected to temperature and other types of sensors.Communication Parameters:8 Data, 1 Stop, No ParityBaud rate : 9600Drivers are available to work with the following operating systems:Windows Server 2008 R2, Windows 7, Windows 7 x64, Windows Server 2008,Windows Server 2008 x64, Windows Vista, Windows Vista x64, Windows Server 2003,Windows Server 2003 x64, Windows XP, Windows XP x64, Windows 2000, Windows ME,Windows 98, Linux, Mac OS X, Mac OS 9, Mac OS 8, Windows CE.NET (Version 4.2 and greater)Commands:FIRST channel commands:OFF command : FF 01 00 (HEX) or 255 1 0 (DEC)ON command : FF 01 01 (HEX) or 255 1 1 (DEC)SECOND channel commands:OFF command : FF 02 00 (HEX) or 255 2 0 (DEC)ON command : FF 02 01 (HEX) or 255 2 1 (DEC)THIRD channel commands:OFF command : FF 03 00 (HEX) or 255 3 0 (DEC)ON command : FF 03 01 (HEX) or 255 3 1 (DEC)FOURTH channel commands:OFF command : FF 04 00 (HEX) or 255 4 0 (DEC)ON command : FF 04 01 (HEX) or 255 4 1 (DEC)Note:This is the link of instructions for your reference:https://s3-ap-northeast-1.amazonaws.com/sain-amzn/20/20-018-909/20-018-909.rar