Breadboard OS is a command-line operating system for the Raspberry Pi Pico, built on top of FreeRTOS. It aims to enable quick prototyping and supports querying, starting, or killing services, checking flash usage and memory usage, and controlling GPIO pins and other peripherals.
If your board is never used with ch55xduino before, you need to make the ch55x chip enter bootloader mode. You need to disconnect USB and unpower ch55x, connect the pull-up resistor on D+ line (generally a 10K resistor between D+ and 5V, controlled by a push-button or adjacent pads). Then you connect USB. and hit Upload. Also, a blank new chip will enter the bootloader automatically.
