Controlling USB 2 Relay board by Raspberry Pi


1 RaspberryPI
1 KMTronic 2 Relay Board
1 USB cable 
recommend install Raspbian





To see ttyusb use do the following:

cat /dev/tty and press TAB twice



Here we see that ttyUSB0


Set speed USB port


stty -F /dev/ttyUSB0 9600



Shell script to control relays

echo -e "\xFF\x01\x01" > /dev/ttyUSB0
echo -e "\xFF\x01\x00" > /dev/ttyUSB0


echo -e "\xFF\x02\x01" > /dev/ttyUSB0
echo -e "\xFF\x02\x00" > /dev/ttyUSB0




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