Arduino-based dial acting as a USB HID device for volume control. An Arduino compatible board with an Atmega32u4 that has Human Interface Device capability is required. Code for either a digital ...

The 2.2-mF capacitor at the control wiper forces all digital potentiometers to reset to their zero position on power up, ensuring that all pots start at the same position.

That said, the STM32Duino project is also very robust and if you are experienced with the Arduino, you might prefer it. However you go, these boards are a good value and certainly easy to work with.

Connect the LED to PWM pin (e.g., D9) through a resistor. Connect the middle pin of the potentiometer to A0. Connect the other two potentiometer pins to 5V and GND. The potentiometer sends an analog ...

All of this makes one a particularly good choice for a volume knob or indeed any other large rotational control, so much so that we’re surprised it hasn’t become a more frequent occurrence.

Components Required to Build the Arduino DC Motor Speed Controller Listed below are the required components to build the Arduino DC Motor Speed Controller: Arduino UNO - x1 IRLZ44N - x1 1k Ohm ...

This is an easy tutorial showing how you can control the brightness of an LED or adjust the speed of a DC fan using Arduino Board, a small BC547 transistor and a potentiometer. In my example the whole ...

The circuit uses three CAT5113P-10 digital potentiometers from Catalyst Semiconductor (see the figure). These pots have control lines connected in parallel as well as isolated resistor elements ...