Based on the original design from Igor Cesko (http://www.cesko.host.sk/) and Paul Qureshi (http://denki.world3.net/), we are currently designing an USB Joystick Adapter specially suited for Atari compatible joysticks. We stripped down everything except the Atari connector part and adding a convenient ISP connection to the board. We also stripped down the buttons to three, the maximum possible with this spec. Here is the final schematic of it: Source code has been slightly modified to fit this hardware: Arcade_Joystick_V1.2.asm Hope to have a prototype soon!
The original interview from the BBC with Paul Qureshi, May 2009.
This is a great idea! We’re going to start from there.