Wrap-Up & Next Steps

What You Learned Today

Instantiate → Configure → Control - it works for every peripheral, every HAL, every driver crate.

Step	What You Do	Where in the Docs
Instantiate	Create a driver instance	Struct page → `new()` or builder
Configure	Set behavior options	Config structs, enums
Control	Read/write/interact	Trait implementations, methods

BSP → Driver Crates → embedded-hal → HAL → PAC → Hardware

You know what each layer does and how to read its documentation.

Navigate crate documentation to find peripheral modules, examples, driver structs, and methods
Apply the mental model across different HALs — you compared esp-hal, rp2040-hal, and stm32f4xx-hal
Use the BSP layer to simplify the pattern to Instantiate → Control

Find a basic example → Apply the mental model → Map to documentation → Modify

The example shows ONE way. The docs show ALL ways. Your job is to explore.

Your uFerris board has more peripherals to explore:

Same pattern: find the module in esp-hal docs, Instantiate → Configure → Control.

For a more comprehensive guide, check out the Simplified Embedded Rust: ESP Core Library Edition book.

Embassy is an async runtime for embedded Rust. Instead of interrupt handlers with mutexes, you write async/await code:

#![allow(unused)]
fn main() {
// Instead of interrupt handler + AtomicBool flag:
let level = button.wait_for_falling_edge().await;
led.toggle();
}

Check out embassy.dev and the embassy-executor crate.

The board is yours. Experiment, break things, build projects. The best way to learn is to have a problem you actually want to solve.

Thank you for attending. Now go build something.