User Guide

Pulsing

Launchpad MK2 also supports pulsing, where the colour of the LED rhythmically increases and

decreases in brightness (as shown in figure 8). Pulsing is started by sending the LED a note-on

message (or CC for the top 8 round buttons) on channel 3 and can be stopped by sending a

message to the LED on channel 1.

! Example: set a single pad to pulse purple (Session layout)

The LEDs are all off. Set the top right grid LED to pulse purple.

Host >> Launchpad MK2: Channel 3: note-on E6/58h (88), velocity 51h (81)

92h 58h 51h (146, 88, 81)

To!stop!pulsing!and!turn!the!LED!off:!

Host >> Launchpad MK2: Channel 1: note-on E6/58h (88), velocity 00h (0)

90h 58h 00h (144, 88, 00)

Max patch: LPMK2_Flashing.maxpat

This patch introduces flashing and pulsing. The mode can be set to

static, flash or pulse. Pads will then do the selected action in a

random colour when pressed. The tempo can also be altered.

Device Inquiry

Launchpad MK2 responds to the MIDI specification’s Device Inquiry message.

! Device Inquiry

Host >> Launchpad MK2: F0h 7Eh 7Fh 06h 01h F7h

(240,126,127, 6, 1, 247)

Launchpad MK2 will respond:

! !

Launchpad MK2 >> Host:

F0h 7Eh <device ID> 06h 02h 00h 20h 29h 69h 00h 00h 00h <firmware revision 4 Bytes> F7h

(240,126,<device ID>, 6, 2, 0, 32, 41,105, 0, 0, 0,<firmware revision 4 Bytes>, 247)

The firmware revision number is represented by four bytes, where revision 138 would be given as

00h, 01h, 03h, 08h.

Figure 8: The pulsing waveform