Ubuntu: How do I use gpio pins 21.04 (can I just use bash?)?

[Helpful Tech Witch]

Im working on a "case" for my rpi4 8gb. Its running ubuntu, because, I know how to use it, but also most server stuff i can find for rpi is ubuntu.

I want to bassically create a script (hopefully in bash, i know how to use it) that i can have automatically start with ubuntu, and have one gpio pin turn on, and a diffrent one turn on for one second, off for another, forever (thoretically)

but I have no idea how to do any of that. at all.

Wheres a good place to start?

 

[HanZie82]

Because of your question i became curious myself too.
I wnt to use the RPI4 i have connected to my TV to be able to change the RGB on my TV ledstrip.

I have been looking here: https://medium.com/coinmonks/controlling-raspberry-pi-gpio-pins-from-bash-scripts-traffic-lights-7ea0057c6a90

 

But having a very small grasp of how BASH works or what it can do i'm a bit stuck. Maybe this link can help you tho. (I got a buddy coming over to look at it so thats fine).

It does pertain to another Linux ditro but it looks like the commands should work among other Linux distro's?

[Helpful Tech Witch]

5 minutes ago, HanZie82 said:

Because of your question i became curious myself too.
I wnt to use the RPI4 i have connected to my TV to be able to change the RGB on my TV ledstrip.

I have been looking here: https://medium.com/coinmonks/controlling-raspberry-pi-gpio-pins-from-bash-scripts-traffic-lights-7ea0057c6a90

 

But having a very small grasp of how BASH works or what it can do i'm a bit stuck. Maybe this link can help you tho. (I got a buddy coming over to look at it so thats fine).

It does pertain to another Linux ditro but it looks like the commands should work among other Linux distro's?

Bash should work the same (I think) on any Linux distro (that has bash installed ofc).

I don’t know much about bash, but I’ve worked with it a bit, as apposed to something like python or c, both of which I’ve never used.

 

the only issue is if that guide uses lgpio like ubuntu does, or a similar program that calls the same things the same way.

I’ll take a look when I get home.

[Helpful Tech Witch]

4 hours ago, HanZie82 said:

Because of your question i became curious myself too.
I wnt to use the RPI4 i have connected to my TV to be able to change the RGB on my TV ledstrip.

I have been looking here: https://medium.com/coinmonks/controlling-raspberry-pi-gpio-pins-from-bash-scripts-traffic-lights-7ea0057c6a90

 

But having a very small grasp of how BASH works or what it can do i'm a bit stuck. Maybe this link can help you tho. (I got a buddy coming over to look at it so thats fine).

It does pertain to another Linux ditro but it looks like the commands should work among other Linux distro's?

I got it to work, minimal modifications to the program

I was counting on the flashing if the system were to hang, which it kinda does stop, but it sometimes starts flashing again.

Any guess to get that to consistently detect a system hang?