Sandeep (talk) 09:51, 5 November 2015 (IST)


This is the first tutorial with AVR where we will get hands on! Let's do a 'hello world' for Embedded. We will interface a simple LED with one of the port pins. The LED as might know emits light when current is passed through it. It could blow up if we pass more current ( >20mA depending on make and type), hence we put a current limiting resistor. Usually 220, 470 and 1K ohm resistors are found. You can use any of these, it should not be an issue. Well instead of a single one, we can as-well connect a bunch of these to port and blink them.

Hookup

Breadboard with Explore AVR 40 Pin Breakout Board with Atmega32

Components Used

With Explore Ultra AVR Dev Kit

Components Used

Schematic AVR Interface LED.JPG Code and Explanation will be updated soon..