Show HN: Dvcdbg – Lightweight no_std logger and I2C scanner for embedded Rust

3 months ago 4

🛠️ Lightweight debug & logger crate for embedded Rust (no_std friendly)

dvcdbg is a lightweight logging and debugging output library for embedded Rust development.
It can be used in a no_std environment and supports log output via UART, I2C, etc.

✅ no_std support
✅ Formatless, fast and lightweight
✅ It also includes utilities for embedded debugging, such as an I2C scanner.
✅ Easy to use with simple logging and macros
✅ Comes with handy built-in utilities such as an I2C bus scanner
✅ Features can be selected with feature flags (e.g., debug_log)

# Cargo.toml [dependencies] dvcdbg = { git = "https://github.com/p14c31355/dvcdbg", features = ["debug_log"] }

📄 Usage example (Arduino)

use arduino_hal::default_serial; use dvcdbg::logger::SerialLogger; let dp = arduino_hal::Peripherals::take().unwrap(); let pins = arduino_hal::pins!(dp); let mut serial = default_serial!(dp, pins, 57600); let mut logger = SerialLogger::new(&mut serial); logger.log("Init I2C bus..."); // Use `log!` macro (requires debug_log feature) log!(logger, "Formatted number: {}", 42);