Programming

17313 readers

175 users here now

Welcome to the main community in programming.dev! Feel free to post anything relating to programming here!

Cross posting is strongly encouraged in the instance. If you feel your post or another person's post makes sense in another community cross post into it.

Hope you enjoy the instance!

Rules

Follow the programming.dev instance rules
Keep content related to programming in some way
If you're posting long videos try to add in some form of tldr for those who don't want to watch videos

Wormhole

Follow the wormhole through a path of communities [email protected]

founded 1 year ago

MODERATORS

[email protected]

How do you directly interface with GPIO in Python? (self.programming)

submitted 8 months ago by j4k3 to c/[email protected]

7 comments fedilink hide all child comments

Like let's say I have a few old HP alphanumeric LED displays that have a simple bit pattern protocol. I've gotten them working in Arduino a long time ago. If I can find some unused pins how can I bit bang them into a custom protocol from user space using pins that may be unrelated as far as I/O ports on a modern computer? Is it even possible without a kernel module? Am I stuck with using a serial channel like SPI/I2C/UART to talk to an external controller?

you are viewing a single comment's thread
view the rest of the comments

[–] [email protected] 2 points 8 months ago (1 children)

Could you use a small microcontroller running micropython? Then you can just type into the repl on that over usb, or run your python on it directly

[–] j4k3 2 points 8 months ago

I've done that before, and with Forth. I'm more interested in bridging what I know with hardware into the desktop environment... or understanding why it seems so disconnected.