DAC MCP4

Command generator for the MCP4 series of Digital-to-Analog Converters (DAC) by Microchip Technology.

At the moment this library currently only supports the following product families:

• MCP4801/MCP4811/MCP4821
• MCP4802/MCP4812/MCP4822
• MCP4901/MCP4911/MCP4921
• MCP4902/MCP4912/MCP4922

This library only handles a single device type globally (you probably wouldn't mix multiple device types on a project) and does not handle command transmission, only command generation.

Usage

// Setup MCP4 library
#define MCP4_DEVICE MCP4922
#include <MCP4.h>

// Initialize the command generator
MCP4 mcp4 = MCP4();

// Write a buffered value to the B channel with 1x gain
int16_t command = mcp4.write( MCP4::BUFFERED_B_X1, 0x555 );

// Command is now the following: 1111 0101 0101 0101
// Transmit the command to the DAC here

Development

Tests can be run in parallel with:

$ make test

All make tasks can be viewed with:

$ make list

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/RyanScottLewis/MCP4. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the Contributor Covenant code of conduct.

Roadmap

• MCP4706
• MCP4716
• MCP4725
• MCP4726
• MCP4728
• MCP47A1
• MCP47DA1
• MCP47FEB01
• MCP47FEB02
• MCP47FEB11
• MCP47FEB12
• MCP47FEB21
• MCP47FEB22
• MCP47FVB01
• MCP47FVB02
• MCP47FVB11
• MCP47FVB12
• MCP47FVB21
• MCP47FVB22
• MCP4801
• MCP4802
• MCP4811
• MCP4812
• MCP4821
• MCP4822
• MCP48FEB01
• MCP48FEB02
• MCP48FEB11
• MCP48FEB12
• MCP48FEB21
• MCP48FEB22
• MCP48FVB01
• MCP48FVB02
• MCP48FVB11
• MCP48FVB12
• MCP48FVB21
• MCP48FVB22
• MCP4901
• MCP4902
• MCP4911
• MCP4912
• MCP4921
• MCP4922
• TC1320
• TC1321

License

The gem is available as open source under the terms of the MIT License.