Launchpad S Reader

read input from Launchpad S MIDI controller

$ npm install --save launchpad-s-reader

usage

var LaunchpadSReader = require('launchpad-s-reader')
var launchpad = new LaunchpadSReader()

launchpad.on('press', function (e) {
  console.log('press', e)
})

launchpad.on('release', function (e) {
  console.log('release', e)
})

launchpad.on('error', function (e) {
  console.log('error', e)
})

launchpad.connect()

buttons

when a 'press' or 'release' is fired, the e will look something like this

{
  button: '',
  deltaTime: 1, // seconds since last press or release
  message: []   // raw midi values
}

the button values tell you which button was pressed. i used the labels on the launchpad, so they should be straight forward, but i'll break it down anyway

the round buttons across the top row are as follows

column | button ------ | ------ 0 | up 1 | down 2 | left 3 | right 4 | session 5 | user1 6 | user2 7 | mixer

the round buttons down the far right column are as follows

row | button ------ | ------ 0 | vol 1 | pan 2 | sndA 3 | sndB 4 | stop 5 | trkOn 6 | solo 7 | arm

all the other buttons are called 'block's which will also come with x and y values corresponding to the column and row of that block