8.2. pintest

A utility for testing the GPIO pins on a Raspberry Pi, inspired by pigpio’s gpiotest example script, and wiringPi’s pintest utility.

New in version 2.0: The pintest utility.

A screenshot of the output from pintest. In a terminal window, pintest has prompted the user with the list of GPIOs it intends to test and asked for confirmation to proceed. Having received this confirmation, it's printed out each GPIO in turn with "ok" after it, indicating success.

8.2.1. Synopsis

pintest [-h] [--version] [-p PINS] [-s SKIP] [-y] [-r REVISION]

8.2.2. Description

A utility for testing the function of GPIOs on a Raspberry Pi. It is possible to damage the GPIOs on a Pi by passing too much current (or voltage in the case of inputs) through them. The pintest utility can be used to determine if any of the GPIOs on a Pi are broken.

The utility will test all physically exposed GPIOs (those on the main GPIO header) by default, but you may wish to only test a subset, or to exclude certain GPIOs which can be accomplished with the pintest --pins or pintest --skip options.

Note

You must ensure that nothing is connected to the GPIOs that you intend to test. By default, the utility will prompt you before proceeding, repeating this warning.

In the event that any GPIO is found to be faulty, it will be reported in the output and the utility will exit with a return code of 1. If all specified GPIOs test fine, the return code is zero.

8.2.3. Options

-h, --help: show this help message and exit

--version: Show the program’s version number and exit

-p PINS, --pins PINS: The pin(s) to test. Can be specified as a comma-separated list of pins. Pin numbers can be given in any form accepted by gpiozero, e.g. 14, GPIO14, BOARD8. The default is to test all pins

-s SKIP, --skip SKIP: The pin(s) to skip testing. Can be specified as comma-separated list of pins. Pin numbers can be given in any form accepted by gpiozero, e.g. 14, GPIO14, BOARD8. The default is to skip no pins

-y, --yes: Proceed without prompting

-r REVISION, --revision REVISION: Force board revision. Default is to autodetect revision of current device. You should avoid this option unless you are very sure the detection is incorrect

8.2.4. Examples

Test all physically exposed GPIOs on the board:

$ pintest

Test just the I2C GPIOs without prompting:

$ pintest --pins 2,3 --yes

Exclude the SPI GPIOs from testing:

$ pintest --exclude GPIO7,GPIO8,GPIO9,GPIO10,GPIO11

Note that pin numbers can be given in any form accepted by GPIO Zero, e.g. 14, GPIO14, or BOARD8.