Provides an interface for Dallas DS2413 IO modules over the DS2482 onewire bridge
JavaScript
Switch branches/tags
Nothing to show
Clone or download
Fetching latest commit…
Cannot retrieve the latest commit at this time.
Permalink
Failed to load latest commit information.
.gitignore
.jshintrc
LICENSE
README.md
commands.js
index.js
package.json

README.md

DS2413 Onewire IO Module

![Gitter](https://badges.gitter.im/Join Chat.svg)

Provides an interface for Dallas DS2413 IO modules over the DS2482 onewire bridge

Install

$ npm install ds2482-io

Usage

var DS2413 = require('ds2482-io');

var io = new DS2413();

io.init(function(err) {
  if (err) { throw err; }
  
  io.search(function(err, modules) {
    if (err) { throw err; }
    
    modules.forEach(function(module) {
      module.write({PIOA: true}, function(err, resp) {
        if (err) { throw err; }
        
        console.log(resp); // Returns the status of each module
      });
    });
  });
});

API

new DS2413([options])

Creates an interface for Dallas DS2413 IO modules

  • options.wire an instance of wire

new DS2413.Module(rom [, options])

Creates an io module instance

  • rom the ROM address of the module as a 16 character hex encoded string
  • options.wire an instance of wire

io.init(callback)

Resets the bridge chip and any onewire devices connected to it

io.search(callback)

Searches the bus and returns a list of found io modules

[
  <Module "3ae9f412000000a6">
]

module.read(callback)

Reads the current pin and latch state status of the module

{
  PIOA: {pin: false, latch: false},
  PIOB: {pin: false, latch: false}
}

module.write(state, callback)

Writes the latch state to the module and returns the current status

  • state.PIOA a flag to enable the output latch state of pin A
  • state.PIOB a flag to enable the output latch state of pin B
{
  PIOA: {pin: true, latch: true},
  PIOB: {pin: false, latch: false}
}