Using the embedded atmega32u4 in an UDOO Bolt Gear, display text received over a USB serial interface on an SSD1306 OLED screen.
Main application logic and display driver is written in Rust. USB serial implementation uses the atmega32u4-usb-serial crate.
Run cargo make build to compile and cargo make flash to upload.
Write data to serial port to display on the screen. For example: ip addr | grep -Po '(?<=inet)\s(?!127)[^/]+' > /dev/ttyACM0, to show the current IP address. Write a null character to clear screen: echo -ne '\0' > /dev/ttyACM0.