Gpio pins monitoring and test

[kgbplus]

I've written a little python program to do gpio pins monitor and testing. It is small and doesn't need any external dependencies (additional libraries or other programs). All what you need is Python interpreter (installed in all Linux distros) and my program itself.
Program runs under Linux console and may be started directly with or without GUI or via SSH. Reading of gpio pins state made with gpio events and callback functions, that's why program will detect all of changes within debounce time. The small log window can help you to see when and which pin's state was changed. Also you can set output values and debug your DYI projects this way.

Program can automatically detect Raspberry Pi model (to determine number of gpio pins). List of model's id has been taken from http://elinux.org/RPi_HardwareHistory. If you have rare model - please let me know (and use --gpio_num command line option).

Program is free, so you can modify anything your want. My github repo https://github.com/kgbplus/gpiotest. Look at tiny manual here or start program with --help argument.

[joan]

The code is using the RPi.GPIO library. That is both a library and a dependency.

[kgbplus]

The code is using the RPi.GPIO library. That is both a library and a dependency.

Of course, you are right. I mean that you don't need type 'pip install' or something like this to install additional modules before you can start program. All modules used are common and installed in Raspbian by default. I will fix my first message.

[willance85]

Hi, my RaspiModel is a32082, it's production from Japan, when running the script, there's an error occur "hardware not supported"
so i added

def getRaspiModel(argument):
"a32082": "3 Model B 1Gb"

def getGpioNum(argument):
"a32082": 26

but still occur the error in the shell:

setupterm: could not find terminal
Traceback (most recent call last):
File "/home/pi/Desktop/gpiotest-master/gpiotest.py", line 391, in <module>
termOn()
File "/home/pi/Desktop/gpiotest-master/gpiotest.py", line 39, in termOn
curses.nocbreak()
_curses.error: must call initscr() first

what can i do now?

[DougieLawson]

Two options:
1. Rewrite the script or library function to recognise your Japanese machine.
2. Report the error to the library author so they can fix the library for everyone.

Option 1 is fun (and part of learning to your use Raspberry). Option 2 is essential.

[kgbplus]

My apologies for taking so long to reply. I've updated hardware detection in my project, please try to use it.
I will try to catch this exception soon.

[tyrion_lannister]

Hi, I am trying to use this but I get a "Failed to add edge detection" when I run sudo python3 gpiotest.py. Any help is appreciated.

[kgbplus]

Could you please tell me your python version and rpi.gpio library version (use this guide)

[vaarasp]

Hello
I suspect I roasted one or more Gpoi-pins. Anyway SPI doesn't do its job like it used to, since I tried to measure battery voltage via Mcp3008 ADconverter
Gpio load spi gives gpio:unable to load/unload modules etc
Ls /dev/*spi* gives the two devices /dev/spidev0.0 and 0.1
Did raspi-config, dtparam=spi=on
Lsmod gives no spidev anymore! But bcm2835_gpiomem is there.
Controled the settings several times, updated etc, no clue. So tried to test with Gpiotest.py.
sudo pigpiod but when I run the program in CL, i get no message and a new commandline after 1-2 seconds.
No message. What can be the background of this?
Is my SPI "broken"? If just Gpiotest would work!
I have a Rasberry 2B v.14 2014
Linux raspberry 4.1.19-v7+

Thanks

[kgbplus]

Is my SPI "broken"? If just Gpiotest would work!
I have a Rasberry 2B v.14 2014
Linux raspberry 4.1.19-v7+

Hello!

Seems the only way to know is to find another Raspberry Pi and try it with your sd card in it.
I haven't seen anything like that but I haven't seen enough.

Roman

[vaarasp]

Yes, I'm busy doing exactly that.....but still, that won't answer the question why the otther one is having this problem.

[Spawnreaper]

I am getting some irregular responses from this script that make no sense to me.
I am trying to test out a relay I want to switch. 5v and grond from pin 4 and 6. signal wire is set on pin 11 (gpio17)

When I run an "input" command to gpio17 the relay turns off.
If I run a "output" commend and ether set gpio17 to true or false the relay turns on.
If I switch the status from high to low or the other way around the relay remains on.

I makes no sense. should I use another pin?

[kgbplus]

Seems some relay issue (incorrect relay voltage)