Adafruit I2C PWM Driver


Node.js implementation for the Adafruit 16-Channel 12-bit PWM/Servo Driver
http://www.adafruit.com/products/815

- Installation
- Usage
- API
- Contribute
- License

Installation

``
npm i adafruit-i2c-pwm-driver
`




Usage

`js
const makePwmDriver = require('adafruit-i2c-pwm-driver')
const pwmDriver = makePwmDriver({address: 0x40, device: '/dev/i2c-1'})

pwmDriver.setPWMFreq(50)
pwmDriver.setPWM(2) // channel, on , off

`

To configure I2c on your Raspberry-pi / Beaglebone please see here

you can find a simple example here




API


makePwmDriver({address:Number,device:String,debug:Bool})

Setting up a new PwmDriver

- address: Address of the i2c panel, e.g. 0x20
- device: Device name, e.g. '/dev/i2c-1' (defaults to /dev/i2c-1)
- debug: flag used to display debug messages

pwmDriver.setPWMFreq(frequency:Number)

Set the PWM frequency to the provided value (in hertz).

pwmDriver.setPWM(channel:Number, on:Number, off:Number)

Sets a single PWM channel.

pwmDriver.setALLPWM(channel:Number, on:Number, off:Number)`

Sets all PWM channels.

Contribute

PRs accepted.

Small note: If editing the Readme, please conform to the standard-readme specification.

License

MIT

Based on the Adafruit's Raspberry-Pi Python Code Library

> Here is a growing collection of libraries and example python scripts
> for controlling a variety of Adafruit electronics with a Raspberry Pi

> In progress!
>
> Adafruit invests time and resources providing this open source code,
> please support Adafruit and open-source hardware by purchasing
> products from Adafruit!
>
> Written by Limor Fried, Kevin Townsend and Mikey Sklar for Adafruit Industries.
> BSD license, all text above must be included in any redistribution
>
> To download, we suggest logging into your Pi with Internet accessibility and typing:
> git clone https://github.com/adafruit/Adafruit-Raspberry-Pi-Python-Code.git