[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?

Learn how to create a DC motor speed control circuit using a PWM-based design for precise performance. This circuit enables voltage regulation, allowing motors to operate efficiently while managing ...

With a competent PWM generator on a microcontroller, you can create this carrier modulation easily enough yourself. Set the PWM frequency to 38 kHz and the duty cycle somewhere in the 33%-50% ...