A digital potentiometer is a device identical to a potentiometer, except that instead of a physical rotating part that adjusts the resistance, it uses digital communication. Namely, the resistance of the digital potentiometer is adjusted via I2C communication.
Our module is based on the MCP4018 IC which has a total of 128 steps between 0 and 5k resistance values. This would mean that it is capable of doing resistance steps of approximately 39ohms. It is controlled via I2C which makes it extremely easy to use.
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| Digipot 5k MCP4018 breakout |
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| Digipot 10k MCP4018 breakout |
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| Digipot 50k MCP4018 breakout |
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| Digipot 100k MCP4018 breakout |
Digipot compliant to easyC ecosystem.
- /src - source files for the library (.h & .cpp)
- /examples - examples for using the library
- other - keywords file highlights function words in your IDE, library.properties enables implementation with Arduino Library Manager.
You can find hardware design for this board in Digipot 5k MCP4018 breakout hardware repository.
You can find hardware design for this board in Digipot 10k MCP4018 breakout hardware repository.
You can find hardware design for this board in Digipot 50k MCP4018 breakout hardware repository.
You can find hardware design for this board in Digipot 100k MCP4018 breakout hardware repository.
Access Arduino library documentation here.
- Tutorial for using the Digipot board
- Installing an Arduino library
The library is compatible with board & microcontroller families shown in green below:
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