GPIO use from terminal

(Linux-Bash)

• Give permissions to your /dev/ttyACMX (Tel-GPIO), For Example:

sudo chmod 777 /dev/ttyACM0

• Configure the device:

sudo stty -F /dev/ttyACM0 1:0:1cb2:0:3:1c:7f:15:4:5:1:0:11:13:1a:0:12:f:17:16:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0:0

• Read the serial-gpio output from background:

sudo cat /dev/ttyACM0 &

• For get Help/Commands write this:

echo "-h" > /dev/ttyACM0

GPIO Read

• Get GPIO level value: (X = number of GPIO pin)

echo "@X" > /dev/ttyACM0

• Get GPIO state: (X = number of GPIO pin)

echo "?X" > /dev/ttyACM0

Write/configure GPIO

• Set GPIO as Output pin: (X = number of GPIO pin)

echo "&X" > /dev/ttyACM0

• Set GPIO as Input pin: (X = number of GPIO pin)

echo "%X" > /dev/ttyACM0

• Set GPIO level HIGH: (X = number of GPIO pin)

echo "^X" > /dev/ttyACM0

• Set GPIO level LOW: (X = number of GPIO pin)

echo "_X" > /dev/ttyACM0