@iiot2k/mcp4725 v2.0.2

@iiot2k/mcp4725

mcp4725 digital to analog converter library

Installation

npm install @iiot2k/mcp4725

or add in your package.json:

"dependencies": {
    "@iiot2k/mcp4725": "latest"
},

View on npm

mcp4725 12bit digital to analog converter

• 12bit Conversion Resolution.
• One Analog Output.
• External Voltage Reference.
• Power Down of output with terminating resistor.
• Store output to internal eeprom.

Usage

• This library works on Raspberry Pi with 32bit or 64bit OS.
• Enable I2C with raspi-config.
• In this case i2c-1 is enabled (port=1).
• If you use i2c-0 port add dtparam=i2c_vc=on to /boot/config.txt, then Pin27=SDA, Pin28=SCK.
• For other ports add this to /boot/config.txt.

API

API functions are explained in documents API.md

Report any issues here

Example

// example writes to dac output
"use strict";

const mcp4725 = require("@iiot2k/mcp4725");

var ret = mcp4725.write_sync(
    1, // i2c-1
    mcp4725.ADR_60, // i2c address 0x60
    1000 // dac value
    );

if (ret === undefined)
    console.log("error on write dac");
else
    console.log(ret);

Examples are on examples folder.