Xploray • Beginner Course

Bare-Metal Arduino

Skip the Arduino libraries. Learn to program the ATMega32 directly — registers, timers, interrupts and protocols — the way real embedded engineers work.

Arduino Uno • ATMega32 • AVR

Hardware you'll actually use

12 Weeks • In-person

Anantapur, AP

₹10,000₹8,000

Per student

What you'll be able to do

•Read a microcontroller datasheet and program registers directly
•Write C for embedded targets without relying on Arduino libraries
•Build, flash & debug firmware using avr-gcc and avrdude
•Use timers, interrupts, ADC, UART, I2C & SPI from first principles
•Ship a working hardware project you built end-to-end

Curriculum

Week 1 – 3

C Programming for Embedded Systems

— Variables, data types, pointers & pointer arithmetic
— Structs, unions, bitwise operators & bit-masking
— Memory layout, volatile, const, and static qualifiers
— Functions, header files, and the avr-gcc toolchain

Week 4

Inside the Microcontroller

— ATMega32 architecture, memory map & clock system
— Datasheets: registers, fuses & the Arduino Uno board
— Setting up avr-gcc, avrdude & Makefiles (no Arduino IDE)

Week 5

Bare-Metal GPIO

— DDRx, PORTx & PINx registers — no digitalWrite()
— LEDs, push-buttons & debouncing in C
— Building your own pinMode/digitalWrite from scratch

Week 6

Timers & PWM

— Timer0/1/2 modes: Normal, CTC & Fast PWM
— Generating delays without delay()
— Software-driven LED dimming & motor speed control

Week 7

Interrupts

— External interrupts (INT0/INT1) & the vector table
— Timer & pin-change interrupts
— Writing safe, minimal ISRs

Week 8

Analog I/O

— ADC registers & conversion in bare-metal C
— Reading sensors: LDR, potentiometer, temperature

Week 9

UART Communication

— Configuring baud rate & registers by hand
— Sending/receiving data — building your own printf

Week 10

I2C & SPI Protocols

— Bare-metal I2C: addressing, ACK/NACK
— SPI for sensors & displays

Week 11

Project Build

— Combining GPIO, timers, ADC & UART into one system
— Sensor + actuator integration on real hardware

Week 12

Capstone & Demo Day

— Final project build, debugging & polish
— Present your bare-metal project to the cohort

Hardware provided

— Arduino Uno (ATMega32 / AVR)
— USBasp / USB-Serial programmer
— Breadboard, jumper wires & basic components
— LEDs, push-buttons, potentiometer & sensors

Who this is for

— ECE / EEE students, beginners welcome
— No prior programming experience required
— A laptop & curiosity about how hardware works

Ready to build something real?