homeduino

homeduinojs

Node.js library for using homeduino.

API

connect

homeduino = require('homeduino')
Board = homeduino.Board
board = new Board('/dev/ttyUSB0', 115200)

board.connect().then( ->
  #do stuff
).done()

readDHT(type, pin)

Read a dht sensor

board.readDHT(22, 13).then( (ret) -> 
  console.log ret.temperature, ret.humidity
).done()

readDstSensors (pin)

Returns all Dallas temp sensors on [pin]

board.readDstSensors(12).then( (ret) -> 
  console.log ret.sensors
).done()

readDstSensor (pin, address)

Reads a sensor with [address] on [pin].

board.readDstSensor(12, '12312312333').then( (ret) -> 
  console.log ret.temperature
).done()

readDstAll (pin)

Reads all sensors connected to [pin]

board.readDstAll(12).then( (ret) -> 
  console.log ret.temperatures
).done()

rfControlStartReceiving(pin)

board.on "rfReceive", (event) -> 
  console.log 'received:', event.pulseLengths, event.pulses

board.on "rf", (event) -> 
  console.log "#{event.protocol}: ", event.values

board.connect().then( ->
  console.log "board ready"
  board.rfControlStartReceiving(0).then( ->
    console.log "receiving..."
  ).done()
).done()

pin read and writes

board.digitalWrite(4, 1).done()
board.analogWrite(1, 10).done()
board.digitalRead(4).then( (value) ->
  console.log value
).done()
board.analogRead(4).then( (value) ->
  console.log value
).done()
board.pinMode(1, 0).done()

REPL-Client

If a pimatic-homeduino instance is using the board make sure to shutdown pimatic as the board only allows for a single connection.

Setup:

git clone https://github.com/pimatic/homeduinojs && cd homeduinojs && npm install

Hint: If you want to use the client in a production setup you need to manually install the colors package as shown below.

cd ~/pimatic-app/node_modules/pimatic-homeduino/node_modules/homeduino/node_modules
npm i colors

Start the REPL-Client which is located in the lib directory:

# cd ~/pimatic-app/node_modules/pimatic-homeduino/node_modules/homeduino/lib in a production setup
cd homeduinojs/lib
sudo ./client.js /dev/ttyUSB0 115200

It will connect to the arduino and give you a prompt, where you can enter a javascript command. To start receiving RF data enter the command board.rfControlStartReceiving(0) or board.rfControlStartReceiving(1) depending on the receiving pin used in your setup

connecting to /dev/ttyUSB0 with 115200
raw data: "ready"
connected
homeduino> board.rfControlStartReceiving(0)
raw data: "ACK"
undefined
homeduino> raw data: "RF receive 516 1928 3880 9204 0 0 0 0 01020102010202020201010102010101010101010202020101010101010102010201020103"
processed: "pulseLengths":[516,1928,3880,9204],"pulses":"01020102010202020201010102010101010101010202020101010101010102010201020103"
matched proto: "weather1: {"id":120,"channel":1,"temperature":22.4,"humidity":42,"lowBattery":false}"
matched proto: "weather5: {"id":234,"lowBattery":true,"temperature":179.3,"humidity":40}"
matched proto: "weather16: {"id":234,"channel":1,"temperature":179.3,"humidity":164,"lowBattery":true}"

The output is colorized by default. You can disable colors by starting the REPL-Client with the option --no-color.