I2C Protocol vs UART

Developers should learn I2C when working on embedded systems, IoT devices, or hardware projects that require communication between multiple integrated circuits on the same printed circuit board (PCB) meets 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. Here's our take.

I2C Protocol

Nice Pick

Developers should learn I2C when working on embedded systems, IoT devices, or hardware projects that require communication between multiple integrated circuits on the same printed circuit board (PCB)

Pros

• It is particularly useful for connecting low-speed peripherals such as temperature sensors, accelerometers, LCD displays, and real-time clocks to microcontrollers like Arduino, Raspberry Pi, or ESP32, as it minimizes wiring complexity and supports multiple devices on a single bus
• Related to: embedded-systems, serial-communication

Cons

• Specific tradeoffs depend on your use case

UART

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

The Verdict

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

The Bottom Line

I2C Protocol wins

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