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Embedded Interfaces
UART, SPI, and I2C Roadmap
Learn the core embedded communication buses: UART framing, SPI modes, I2C addressing, pull-ups, timing, and debugging.
What is UART SPI I2C?
UART SPI I2C is one of the practical skill areas inside the EmbeddedRoad engineering roadmap. It connects theory, product constraints, debugging habits, and portfolio evidence so engineers can move from reading about a topic to proving they can use it in real embedded systems work.
On EmbeddedRoad, this topic is not treated as an isolated tutorial. It belongs to the Embedded Interfaces branch and can be tracked alongside related hardware, firmware, validation, and communication skills.
What you should learn
UART baud rate
SPI CPOL CPHA
chip select
I2C address
pull-up resistor
logic analyzer
Recommended progression
- 1Start with UART logs
- 2Add SPI sensors or displays
- 3Use I2C peripherals and pull-ups
- 4Practice with logic analyzer traces
Prerequisites
- GPIO basics
- Logic levels
- Microcontroller development basics
What you can show on EmbeddedRoad
- Choose the right bus for a device
- Debug common communication failures
- Read timing diagrams and datasheets