node package manager
Don’t reinvent the wheel. Reuse code within your team. Create a free org »

ds2482-io

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}
}