If a particular potentiometer has 12 volts going into it, moving its sensing arm through its full range of motion could change output voltage from, say, 1.3 volts to 10.5 volts.

MCP41010 & Arduino Test. As you may have noticed, a digital potentiometer behaves the same as a mechanical potentiometer, except that instead of having a round handle that you can turn, it’s ...

We set the potentiometer pin as 0 (A0 on the Arduino Uno board), the CONTROL variable is the voltage that is used to cotrol the led brightness of the speed of the fan. In the setup() function the ...

About a year ago I paid about EUR 20 for a WDD35 potentiometer with a linearity of 0.5%. It looks quite beautiful on the inside, with ball bearings and conductive plastic track which is milled to ...

Sometimes, a hack isn’t really about the technology but about the logistics. If we asked you to light up an LED using an Arduino, there’s a good chance you’d know exactly how to d… ...

Arduino Uno + potentiometer + OLED == virtual circular dial. Call it synchronicity, or manually setting a 16-bit number in an Arduino, or how to turn an OLED into a rotary dial... What am I talking ...