UART vs I2C

Developers should learn UART for embedded systems and IoT projects where low-cost, straightforward serial communication is needed between microcontrollers, sensors, or debugging tools like serial monitors meets developers should learn i2c when working with embedded systems, iot devices, or hardware projects that require communication between multiple integrated circuits on a single board, as it simplifies wiring and reduces pin count compared to parallel interfaces. Here's our take.

UART

Nice Pick

Developers should learn UART for embedded systems and IoT projects where low-cost, straightforward serial communication is needed between microcontrollers, sensors, or debugging tools like serial monitors

Pros

• It is essential for tasks such as firmware debugging, data logging, and interfacing with legacy hardware due to its simplicity and widespread support in hardware like Arduino, Raspberry Pi, and ESP32
• Related to: embedded-systems, microcontrollers

Cons

• Specific tradeoffs depend on your use case

I2C

Developers should learn I2C when working with embedded systems, IoT devices, or hardware projects that require communication between multiple integrated circuits on a single board, as it simplifies wiring and reduces pin count compared to parallel interfaces

Pros

• It is ideal for scenarios where moderate data rates (typically up to 3
• Related to: spi, uart

Cons

• Specific tradeoffs depend on your use case

The Verdict

These tools serve different purposes. UART is a concept while I2C is a protocol. We picked UART based on overall popularity, but your choice depends on what you're building.

The Bottom Line

UART wins

Based on overall popularity. UART is more widely used, but I2C excels in its own space.