AVR-OSR (Optical Stitch Regulator)

The ATtiny13-based AVR-OSR is a sewing machine stitch regulator that can be interfaced to any sewing machine that uses a low-voltage, potentiometer-controlled foot pedal. The microcontroller reads movement data from an optical PS2 mouse and creates a PWM output that’s filtered and buffered to control the machine’s speed.

George Kaldis
georgekaldis@yahoo.com
U.S.