UART Ring Buffer Logger + I2C Utility Layer (C) — Laptop-only

What this project includes

• Fixed-size ring buffer with overwrite-oldest behavior (log-friendly)
• Host-based tests (gcc) for wrap-around, overflow, and edge cases
• Mock I2C device with fault injection (timeout/NACK) + driver-style read/write APIs
• Retry logic + simple stats counters

Build (MSYS2 UCRT64 on Windows)

cmake -G Ninja -S . -B build
cmake --build build


Run Tests 

./build/ringbuf_tests.exe
./build/i2c_tests.exe