[Jana Marie] must agree with this sentiment, one of her latest projects involves building a tool to generate a PWM signal and test servos using an Attiny25/45/85. What tools have you build recently?

The footswitch is the brains of the setup, with three buttons, four LEDs, and a DIN-5 output jack that delivers power, ground, and three PWM signals to the servo box. With the help of an Arduino ...