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UART From Scratch: Serial Communication Without a Library
How to set up UART on an AVR microcontroller using bare metal C, configure baud rate registers, transmit and receive bytes and debug embedded systems over a serial monitor.
1 Jun 2026
Bare Metal AVR: Building a Nine-Mode State Machine Without Any Framework
How I built a nine-mode state machine on an ATmega644P from scratch using bare metal C, writing directly to hardware registers with no framework, no HAL and no shortcuts. Still ongoing.
1 Apr 2026