noboilerplate VS stm32f4xx-hal

NoBoilerplate [1] is a great Rust-oriented YouTube channel that's less tutorial and more of a tour of the strengths and foibles of the language. The videos are a great springboard, because they are entertaining as much as informative and inject a bit of hype and hope for when you're battling the compiler.

[1] https://www.youtube.com/c/NoBoilerplate

My obsidian source code is here: https://github.com/0atman/noboilerplate/

All my videos are built in compile-checked markdown, transcript sourcecode available here https://github.com/0atman/noboilerplate

I make videos for folks like you! And if you want to read, well my markdown is here https://github.com/0atman/noboilerplate/blob/main/scripts/24-rust-data-modelling.md

YouTubers I found very helpful: - https://www.youtube.com/c/LetsGetRusty - https://www.youtube.com/@codetothemoon - https://www.youtube.com/watch?v=ygL_xcavzQ4&t=1020s&ab_channel=DerekBanas - https://www.youtube.com/c/NoBoilerplate

I pull out all the rust examples into main.rs with literate, and the same with the Cargo.toml. My makefile is here https://github.com/0atman/noboilerplate

Video tutorials: Jon Gjengset and Let's Get Rusty and No Boilerplate (u/0atman)

My friend Tris has mentioned many times how positive his experience has been of the comments on his wildly popular Rust videos on YouTube.

I would personally use the abstractions provided by the stm32f4xx-hal crate more. See https://github.com/stm32-rs/stm32f4xx-hal/tree/master/examples/ for examples.

For this project, the audio ended up being the biggest challenge. I spent a few days on-and-off working on it because it would stop working as I modified the PWM frequency. I was eventually able to track it down to a bug in the HAL and opened a PR accordingly: https://github.com/stm32-rs/stm32f4xx-hal/pull/555

For my specific issue, I'm using the stm32f4xx-hal library to control a bunch of RGB leds, each with a pwm output. Since I have to get pins and timers where I can find them, each component of the led is made by something like

At the time of writing this post, I noticed that if going with option 1 stated earlier that returns a PWMChannel can prove to be quite problematic. In navigating the documentation, the PWMChannel implementations do not include methods that allow to get and set the period of the peripheral. There is an issue that I submitted here for that.

Maybe check out this example from the stm324xx-hal repo?

Here is an example for stm32f407 (trivial to change to stm32f411) that gets random numbers from the rng peripheral and displays them on an ssd1306 display: https://github.com/stm32-rs/stm32f4xx-hal/blob/master/examples/rng-display.rs although this uses Rust, which you may or may not like. Arduino will have you covered as well, obviously.

A major benefit of Rust in embedded is how easy it is to use libraries. This example implements USB serial communication on an STM32 in under 80 lines. You add some libs and if it compiles it works.