ds2482-io v0.1.0

DS2413 Onewire IO Module

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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}
}