This is a fork (backup) of the well-known "PWM frequency library" initially created by Sam Knight; see http://code.google.com/p/arduino-pwm-frequency-library ...

The DR44 is a two wire Alternator with a built-in regulator. Well, really three wire but the third wire is not needed if adapting this alternator into another vehicle. The DR44 needs a 5V, 128Hz PWM ...

This LED DIMMER is an Arduino Uno based PWM (Pulse Width Modulation) circuit developed to get variable voltage over constant voltage. The method of PWM is explained below. Before we get start building ...

Looking for a simple circuit to control the light intensity of Light Emitting Diodes (LEDs) or similar lighting sources? Here is an Arduino based circuit with three independent pulse width modulated ...

Among all the Arduino boards, the Uno is most folks' go-to choice, and for good reason. It's the perfect platform to get started with Arduino, it's capable enough to handle a wide range of tasks, and ...

From a simple electronic toothbrush to complicated robotics systems, DC motors are present everywhere. In most of our previous Arduino projects, we have used these DC motors as actuators and ...