This library provides a class for the mcp4728, it relies on the ncd-red-comm library for communication, and includes a node-red node for the mcp4728. The mcp4728 is a quad, 12-bit voltage output Digital-to-Analog Convertor (DAC) with nonvolatile memory (EEPROM). Ncd.io is in the process of releasing multiple boards that utilize this chip for different applications. When they become available, you will be able to see a list here.
This library can be installed with npm with the following command:
npm install ncd-red-mcp4728
For use in node-red, use the same command, but inside of your node-red directory (usually
test.js file included in this library contains basic examples for use. All of the available configurations are available in the node-red node through the UI.
Raspberry Pi Notes
If you intend to use this on the Raspberry Pi, you must ensure that:
- I2C is enabled (there are plenty of tutorials on this that differ based on the Pi version.)
- Node, NPM, and Node-red should be updated to the latest stable versions. If you skip this step the ncd-red-comm dependency may not load properly.