If you have wiringPi installed try its pin test utility with nothing connected to the gpios.

Alternatively download and install my pigpio library and run the gpio test shell script (again with nothing connected to the gpios).

A video of gpio test in action.

My gpio test checks each gpios input, output, pull-up, and pull-down.

If you have wiringPi installed try its pin test utility with nothing connected to the gpios.

Alternatively download and install my pigpio library and run the gpio test shell script (again with nothing connected to the gpios).

A video of gpio test in action.

My gpio test checks each gpios input, output, pull-up, and pull-down.

If you have wiringPi installed try its pin test utility with nothing connected to the gpios.

Alternatively download and install my pigpio library and run the gpio test shell script (again with nothing connected to the gpios).

A video of gpio test in action.

If you have wiringPi installed try its pin test utility with nothing connected to the gpios.

Alternatively download and install my pigpio library and run the gpio test shell script (again with nothing connected to the gpios).

A video of gpio test in action.

My gpio test checks each gpios input, output, pull-up, and pull-down.