Dilshan Jayakody has been working on an open-source hardware project MCP4141 based digital potentiometer, that is available on GitHub: The main objective of this project is to create an experimental prototype of a digital potentiometer using Microchip’s MCP4141 IC. MCP4141 is available with end-to-end resistances of 5KΩ, 10KΩ, 50kΩ, and 100KΩ. This potentiometer-module can drive […]
Tag Archives: potentiometer
App note: Potentiometers and trimmers
App note from Vishay on variable resistors primer. Link here (PDF) A potentiometer is a mechanically actuated variable resistor with three terminals. Two of the terminals are linked to the ends of the resistive element and the third is connected to a mobile contact moving over the resistive track. The output voltage becomes a function […]
Mystery dual-increment potentiometer
arhi has a mystery dual-increment potentiometer: there are 2 pots inside … example, you turn the pot fully to the left. let’s say it is 10K, then you rotate it to the right, and it goes “easy” rotating to the right almost a full circle (few degrees shy from a full circle) and that goes […]