AVR ATtiny25 USB hit counter
posted Oct 5th 2008 8:54pm by Jason Rollettefiled under: classic hacks, misc hacks
[Bob] has a USB page hit counter that uses an ATtiny25 to run a MAX7219 which drives eight 7-segment displays. It is easy to implement USB on an AVR using just firmware, eliminating the need for any USB to RS232 conversion. The host software is written in Delphi and sits in the Windows tray. The code examples seem simple enough to expand upon into your own display programs.
