cjmakes / mini-marquee

mini-marquee

I wanted to try some embedded rust and found some well supported components. Here is what I came up with.

Things I like about this project

• it works!
• rust compiler caught a bug I had where I wanted to use an RGB font with a monochrome display
• the simulator is great
• being able to share the same library between physical and simulation is great
• well supported board means it was plug-and-play
• actual board is great to work with, usb-c, integrated led display
• embedded-hal traits are incredible. My board supplies an interface that implements i2c, the display driver takes something that implements i2c. The maintainer of the board crate and the maintainer of the display driver crate never had to coordinate.
• embedded-graphics is amazing, so much being able to draw fonts and shapes without needing to learn a custom library

Things I don't like

• ...nothing?

Using

Simulation

cargo run -p simulation

Flashing

Connect the board with:

sck - gp15
sda - gp14

Reset the board by holding reset, holding boot, releasing reset, releasing boot.

Mount the board

mount /dev/sda1 /mnt

Flash, note, we need to cd to physical to get cargo to pickup the correct compile target

cd physical; cargo run --release