This project implements speed and direction control of a DC motor using an Arduino Uno and an H-Bridge motor driver (L293D). The system allows the user to control the motor rotation direction using ...

// SPEED=1..20 maps to PWM duty via a geometric curve from MIN_DUTY (s=1) to 255 (s=20). // SPEED=0 stops the motor. Stopped -> running triggers a 10s full-duty cold start. const int MIN_DUTY = 42; // ...

The creative adventures with ATtiny series microcontroller are awesome if you know how to play them. ATtinys — especially the ATtiny85s — are all around us, and by using one, we can shrink the size of ...

Test circuits, modulate LEDs, or variable motor speeds need a dependable pulse width modulation (PWM) signal. Function generators sold commercially can be quite large and cost a lot of money. This ...

When multiple PWM converters are connected in series (or in parallel) in a power electronics circuit, it is appropriate to run all converters at the same frequency but with certain phase shift among ...