launchpad-mini/types/test.ts

JavaScript library for interacting with the Novation’s midi board LAUNCHPAD MINI.

#!/usr/bin/env node

import Launchpad from  '../launchpad-mini';

let pad = new Launchpad();

pad.on( 'disconnect', () => console.log( 'Launchpad disconnected.' ) );
pad.on( 'key', data => {
    console.log( data );
    console.log( 'Currently pressed: ', pad.pressedButtons );
} );

console.log( pad.availablePorts );

pad.connect().then( ( msg ) => {
    console.log( msg );

    // MIDI device inquiry
    // pad.sendRaw( [ 0xf0, 0x7e, 0x7f, 0x06, 0x01, 0xf7 ] );

    // Reset pad
    pad.reset( 0 );

    pad.col( pad.green.copy, pad.fromPattern( 'c0 xxx' ) );
    pad.col( pad.red, [ 0, 0 ] );
    pad.col( pad.red.copy, [ 1, 0 ] ); // copy
    pad.col( pad.red.clear, [ 2, 0 ] ); // clear

    pad.writeBuffer = 1;
    pad.col( 3, [ [ 4, 0 ], [ 5, 0 ] ] );
    pad.writeBuffer = 0;
    pad.col( 3, [ [ 6, 0 ], [ 7, 0 ] ] );


    pad.col( pad.red, pad.fromPattern( [
        'r3    x',
        'r4   x x',
        'r5  x   x',
        'r6 x  x  x',
        'r7 X X X X',
        'sc  x   x'
    ] ) );

    // Esc button
    pad.col( pad.red.full, [ 0, 8 ] );
    pad.col( pad.green.low, [ 1, 8 ] );
    pad.col( pad.green.low, [ 2, 8 ] );
    pad.col( pad.off, [ 3, 8 ] );
    pad.col( pad.green.low, [ 4, 8 ] );
    pad.col( pad.green.low, [ 5, 8 ] );
    pad.col( pad.off, [ 6, 8 ] );
    pad.col( pad.off, [ 7, 8 ] );
    pad.on( 'key', pair => {
        if ( pair.pressed ) {
            pad.col( pad.red.full, pair );
            pad.writeBuffer = 1;
            pad.col( pad.red.low, pair );
            pad.writeBuffer = 0;
        } else {
            pad.col( pad.off, pair );
        }
        if ( pair.pressed && pair.x === 8 ) {
            if ( pair.y === 0 ) {
                pad.displayBuffer = 0;
            } else if ( pair.y === 1 ) {
                pad.displayBuffer = 1;
            } else if ( pair.y === 2 ) {
                pad.flash = true;
            } else if ( pair.y === 4 ) {
                pad.sendRaw( [ 0xb0, 0x0, 0b110101 ] );
            }
        }
        if ( pair.pressed && pair.y === 8 ) {
            if ( pair.x === 0 ) {
                // Exit
                pad.reset( 1 );
                pad.disconnect();
            } else if ( pair.x === 1 ) {
                // Reset brightness
                pad.multiplexing();
            } else if ( pair.x === 2 ) {
                // Fade
                (new Array( 101 )).fill( 0 ).forEach( ( empty, ix ) => setTimeout( () => pad.brightness( ix / 100 ), ix * 20 ) );
            } else if ( pair.x === 4 ) {
                // Does not update correctly for 6 or more repetitions
                let btns = Launchpad.Buttons.Grid;
                for ( let i = 0; i < 8; i++ ) {
                    pad.col( pad.red.low, btns );
                    pad.col( pad.red.full, btns );
                    pad.col( pad.amber.low, btns );
                    pad.col( pad.amber.full, btns );
                    pad.col( pad.green.low, btns );
                    pad.col( pad.green.full, btns );
                }
            } else if ( pair.x === 5 ) {
                // Does not update correctly for 6 or more repetitions
                let btns = Launchpad.Buttons.Grid,
                    loop = ( n ) => {
                        pad.col( pad.red.low, btns )
                            .then( () => pad.col( pad.red.full, btns ) )
                            .then( () => pad.col( pad.amber.low, btns ) )
                            .then( () => pad.col( pad.amber.medium, btns ) )
                            .then( () => pad.col( pad.green.low, btns ) )
                            .then( () => pad.col( pad.green.medium, btns ) )
                            .then( () => n > 0 ? loop( n - 1 ) : null )
                            .catch( ( err ) => console.error( 'Oh no: ', err ) );
                    };

                loop( 32 );
            } else if ( pair.x === 6 ) {
                pad.setColors( [
                    [ 0, 0, Launchpad.Colors.green ],
                    [ 1, 1, Launchpad.Colors.red ],
                    [ 2, 2, Launchpad.Colors.green ],
                    [ 3, 3, Launchpad.Colors.red ],
                    [ 4, 4, Launchpad.Colors.green ],
                    [ 5, 5, Launchpad.Colors.red ],
                    [ 6, 6, Launchpad.Colors.green ],
                    [ 7, 7, Launchpad.Colors.red ]
                ] );
            }
        }
    } );

}, err => console.error( 'Rejected: ', err ) );