Learning path

Microcontroller Foundations

Learn how microcontrollers really work — from a blinking LED to timers, PWM, ADC and interrupts.

A six-week beginner course built around the Arduino Uno and ATmega328P, with register-level C and STM32 comparisons. You start with what a microcontroller is and finish by building a complete embedded system on your own.

Beginner
6 weeks 18 lessons Arduino Uno (ATmega328P), with STM32 Nucleo / Blue Pill comparisons
Your progress0 of 18 lessons

Course content

Six weekly modules. Each lesson unlocks once you complete the one before it.

Architecture, memory, clock and your first upload.

What you will be able to do

  • Explain the purpose of the CPU, clock, Flash, SRAM, EEPROM, registers, buses, pins and peripherals
  • Build safe LED, button, potentiometer, buzzer and motor-control circuits
  • Configure digital input and output with Arduino functions and ATmega328P registers
  • Read analog sensors with the ADC and convert raw readings into real physical values
  • Write clear embedded C using variables, conditions, loops, functions, arrays, pointers and bit operations
  • Generate accurate delays and PWM signals with hardware timers
  • Use interrupts safely and explain what happens inside the CPU when one occurs
  • Read a datasheet and locate pin, register, bit, timer, ADC and interrupt information
  • Transfer the same core ideas from Arduino/AVR to STM32
  • Complete a small embedded-system project independently