Dimming an LED and Beyond: PWM on Raspberry Pi
PWM is something that we all use every day, even if we don’t know it. It’s a technique that’s straightforward and incredibly useful in a range of applications. Best yet, it’s something that your Raspberry Pi can do without breaking a sweat. How? Let’s take a look. What Is PWM? As terminology goes, “Pulse-Width Modulation” sounds pretty fancy. But all we’re really talking about here is turning an electrical signal off and on again—extremely quickly....