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