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Published on Aug 8, 2011
USBasp is an AVR programmer that can be built using another AVR microcontroller. The circuit itself is very simple, and I mounted it on a breadboard.
In this video, you can see a USB cable connected to the USBasp on the breadboard, which is connected to another ATmega8 (using those white/brown wires). Then I run avrdude on my notebook, which sends commands to the USBasp, which then writes the "blinking leds" firmware to the other ATmega8 (the same firmware as in http://www.youtube.com/watch?v=V7ESjm... ).
For writing the USBasp firmware onto the first microcontroller, I used a parallel port programmer and an old computer that had a parallel port. (not shown in the video)
There is also a PIC microcontroller and some 7-segment LED displays on the breadboard. Ignore those, as they are from an unrelated project.