USB RS485 8 Relay boards by Raspberry Pi

Now I'll show you a very easy way how to control 32 relays with the help of Raspberry PI with web Interface
1 RaspberryPI
KMTronic RS485 8 Relay Boards
KMTronic USB<>RS485 adapter
1 USB cable 
12 volt power
recommend install Raspbian







Commands for control shell script of the relays:

echo -e "\xFF\x01\x01" > /dev/ttyUSB0  -> For ON Relay 1
echo -e "\xFF\x01\x00" > /dev/ttyUSB0  -> For OFF Relay 1
echo -e "\xFF\x02\x01" > /dev/ttyUSB0  -> For ON Relay 2
echo -e "\xFF\x02\x00" > /dev/ttyUSB0  -> For OFF Relay 2
echo -e "\xFF\x03\x01" > /dev/ttyUSB0  -> For ON Relay 3
echo -e "\xFF\x03\x00" > /dev/ttyUSB0  -> For OFF Relay 3    
and etc..





Web interface



For full shell scrip download this  Download


Download web interface -Download




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