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Is this community still alive? If yes I've got a Rust-question. (discuss.tchncs.de)

submitted 1 year ago by [email protected] to c/[email protected]

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I'm trying to run an LED matrix display (with a Max7219 controller) from a raspberry pi pico using rust. There is a max7219-crate that I used. But i am unsure about how to prepare the pins I want to use. Can I Use any of the pins? Do I have to set them to push-pull-output?

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[–] [email protected] 2 points 1 year ago

Hey thank you! it might actually be that the driver has an error. For me somebody pointing that out is actually very helpful, as I always suspect that I'm doing something wrong. But playing around with the other example that kind of implemented the max7219 interface from scratch (using the u16 for the data send) was pretty fun!

I guess I will try changing the original max719-crate from u8 to u16 tomorrow and see what happens. I also posted an issue about that on the GitHub.