UART vs SPI vs I2C: When to Use Each Protocol in 2026
If you’ve ever stared at a sensor datasheet wondering which communication protocol to wire up, you’re in good company. UART, SPI, and I2C are the three serial buses you’ll meet on almost every microcontroller, and picking the wrong one usually ends with either a rat’s nest of wiring, a bus that’s too slow, or a … Read more