AVR Microcontroller Class 2011
From HacDC Wiki
Syllabus, course material, homeworks, photos, etc from an Introduction to Microcontrollers with AVR chips class can be found here.
Also see (and contribute to) Useful AVR Links
Class 0: Introduction and Setup
Covers: What the AVRs are, what all the pins do, what they can do for you. A brief tour of the toolchain, and getting your firmware up and running on the chip. Reading the datasheets. How to make chips speak digital to the outside world, pin-by-pin. Just enough C programming fundamentals to make it work.
Lab: Building the kit and running a test LED flasher.
For detailed info on the class kit, see Avr2011_kit.
avr2011_LED_Demo.c avr2011_LED_Demo_Makefile
Homework: More soldering, and Cylon Eyes. Optional extra credit: Simple POV toy (hint, make the timing a lot faster and swing your arms). Super bonus points: Make a neat POV toy.
Resources:
- Slides from class: Media:avr2011_class0.pdf
- ATmega48P Datasheets (get both): ATmega48P Summary Datasheet and The Long ATmega48P Datasheet
- Bootloader appnote [1]
- Installing AVR Toolchain
Class 1: Digital and Serial I/O
Covers: Gathering simple data from the world, and learn how to spit it back out. A serial link with your computer enables all sorts of tricks, and enables the microcontroller version of printf debugging. Some boolean logic comes in handy here.
Along the way, we'll learn debouncing switches, simple audio generation, and more!
Labs: Pushbutton organ, ASCII-to-binary keymapper (utility?)
HW: Ghetto logic probe / analyzer
Class 2: ADC and PWM: "Analog" I/O
Covers: Learn about ways to fake analog data into and out of your microcontroller. We'll learn how to switch logic states fast to emulate an analog output, and how to use the built-in analog-to-digital converters to measure the complex real-world.
Labs: Auto-dimming LEDs, a better organ, servo motor driving, ghetto oscilloscope
Homework: Basic light-level data logger or battery charger/discharger
Class 3: Interrupts and Timers
Covers: Interrupts call subroutines when certain conditions are true. Timers and counters let you time and count events. Together, they take a lot of the programming burden off your shoulders, and enable really cool stuff. Additionally, you're a step closer to building that real-time operating system you've always wanted.
Labs: Yet another push-button organ, frequency counter, capacitive sensing
Homework: Capacitive touch-switch. Optional "theremin"
Class 4: EEPROM, PROGMEM, ?, Profit.
Covers: PROGMEM lets you use the program memory to store lots of (constant) data. EEPROM is like flash -- there's not much of it, but it stays around when you power off. We'll also cover simple state machines and menu-driven interfaces here.
Labs: Arbitrary waveform generation by direct-digital synthesis, and a menu system to run it
Homework: Not sure yet...
Class 4: I2C, USB, SD Cards, GPS
Covers: Learning to use other people's code and tie it in to our packages. Interfacing with all sorts of random devices for fun and profit.
Labs: I'll be providing example code interfacing with all sorts of external gear. Pick and choose whichever you'd like to implement.
Homework: None. It's project time! Start thinking up what you'd like to do here...