Bare-Metal C | USART & Serial Printing! (Part 5)
In this video, I’ll walk you step-by-step through setting up UART communication in pure C (bare-metal) on an ATmega328P (like the Arduino Nano or Uno). No Arduino libraries — just register-level control!
You’ll learn how to:
Initialize UART using UBRR0, UCSR0B, and UCSR0C
Transmit bytes, strings, and even 32-bit integers
Understand baud rate calculation and buffer handling
Use ultoa() to convert numbers to strings for transmission
This is perfect for anyone learning low-level embedded programming or making the switch from Arduino to real embedded C.
Useful links:
Arduino nano pinout: https://www.tech-sparks.com/wp-conten...
Arduino Datasheet: https://ww1.microchip.com/downloads/e...
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Tags:
#cprogramming #coding #baremetal #embeddedsystems #engineering