1.1 KiB
Slideshow
This project is a relatively simple slideshow running on the Adafruit Feather 328P (an ATmega328p-microcontroller) using a simple button and a 240x240 LCD display with the ST7789-driver over SPI.
This project is written on Rust and uses a very minimal amount of libraries with
the most significant being atmega-hal, a
hardware abstraction layer for ATmega-microcontrollers. Images are stored in the
program memory of the device and
manually read using the lpm-instruction using inline-assembly because Rust
itself does not produce this instruction in any scenario. The images are stored
in the QOI-specification to save
space, and they are decoded on-the-fly when rendering the images. Communication
between the display and the microprocessor is done manually using a minimal
SPI-utility
within the atmega-hal crate.