LED control

This section explains how the LEDs are controlled on OpenDeck boards. LEDs can be controlled using received MIDI messages or via connected components on board (local control).

• Control parameters
• Control modes
• Control values
  • LED state/color
  • LED blinking
  • LED state/color and LED blinking (combined)

Control parameters

See this page for details.

Control modes

There are several modes which can be used to control the LEDs on OpenDeck boards:

• MIDI In: Note + CC - In this mode, notes are used to control LED state/color and CC messages to control blink state.
• MIDI In: CC + note - In this mode, CC messages are used to control LED state/color and notes to control blink state.
• MIDI In: Note / S+B - In this mode, notes are used to control both LED state/color and blinking.
• MIDI In: CC / S+B - In this mode, CC messages are used to control both LED state/color and blinking.
• MIDI In: Program change - In this mode, program change messages are used to control LED state/color. On RGB LEDs, color depends on MIDI program value. In this mode, LED activation value is ignored. Blink state setting isn't possible in this mode.
• Local control: Note - In this mode, buttons and FSR sensors connected to the board which are configured to send Note messages are used to control LED state/color only (no blinking).
• Local control: CC - In this mode, buttons and FSR sensors connected to the board which are configured to send CC messages are used to control LED state/color only (no blinking).
• Local control: Note / S+B - Same as MIDI In: Note / S+B, only components on board (buttons/FSRs) are controlling the LEDs.
• Local control: CC / S+B - Same as MIDI In: CC/ S+B, only components on board (buttons/FSRs) are controlling the LEDs.
• Local control: Program change - Same as MIDI In: Program change, only components on board (buttons/FSRs) are controlling the LEDs.

Control values

LED state/color

Table below shows values to control LED state/color and it's valid for following control modes:

• MIDI In: Note + CC
• MIDI In: CC + note
• MIDI In: Program change
• Local control: Note
• Local control: CC
• Local control: Program change

Velocity/control value/program range	Color
0-15	Off
16-31	Red
32-47	Green
48-63	Yellow
64-79	Blue
80-95	Magenta
96-111	Cyan
112-127	White

When single color LEDs are used, color is ignored (when not off) so any value which doesn't turn the LED off will turn the LED on.

LED blinking

Table below shows values to control LED blinking and it's valid for following control modes:

• MIDI In: Note + CC
• MIDI In: CC + note

To control the blinking, a CC or note message (depending on configuration) with same ID as LED activation ID must be sent to the board. Table below shows correlation with CC value/velocity and blink state/speed.

CC/velocity value	Blink speed
0-9	No blinking
10-19	100ms
20-29	200ms
30-39	300ms
40-49	400ms
50-59	500ms
60-69	600ms
70-79	700ms
80-89	800ms
90-99	900ms
100-127	1000ms

When "Blinking via MIDI clock" option is enabled, blink speed depends on MIDI clock rate, and depending on received MIDI value, clock divider is used. Table below shows the corresponding values:

CC/velocity value	MIDI clock pulses	Blink rate (musical notation)
0-9	N/A	No blinking
10-19	2	1/16 triplet
20-29	3	1/16 note
30-39	4	1/8 triplet note
40-49	6	1/8 note
50-59	9	1/8 dotted note
60-69	12	1/4 note
70-79	18	1/4 dotted note
80-89	24	1/2 note
90-99	36	1/2 dotted note
100-127	48	Whole note

LED state/color and LED blinking (combined)

Table below shows values to control both LED state/color and LED blinking and it's valid for following control modes:

• MIDI In: Note / S+B
• MIDI In: CC / S+B
• Local control: Note / S+B
• Local control: CC / S+B

Velocity/control value	Color	Blink speed
0-15	Off	No blinking
16	Red	100ms
17	Red	200ms
18	Red	300ms
19	Red	400ms
20	Red	500ms
21	Red	600ms
22	Red	700ms
23	Red	800ms
24	Red	900ms
25	Red	1000ms
26-31	Red	No blinking
32	Green	100ms
33	Green	200ms
34	Green	300ms
35	Green	400ms
36	Green	500ms
37	Green	600ms
38	Green	700ms
39	Green	800ms
40	Green	900ms
41	Green	1000ms
42-47	Green	No blinking
48	Yellow	100ms
49	Yellow	200ms
50	Yellow	300ms
51	Yellow	400ms
52	Yellow	500ms
53	Yellow	600ms
54	Yellow	700ms
55	Yellow	800ms
56	Yellow	900ms
57	Yellow	1000ms
58-63	Yellow	No blinking
64	Blue	100ms
65	Blue	200ms
66	Blue	300ms
67	Blue	400ms
68	Blue	500ms
69	Blue	600ms
70	Blue	700ms
71	Blue	800ms
72	Blue	900ms
73	Blue	1000ms
74-79	Blue	No blinking
80	Magenta	100ms
81	Magenta	200ms
82	Magenta	300ms
83	Magenta	400ms
84	Magenta	500ms
85	Magenta	600ms
86	Magenta	700ms
87	Magenta	800ms
88	Magenta	900ms
89	Magenta	1000ms
90-95	Magenta	No blinking
96	Cyan	100ms
97	Cyan	200ms
98	Cyan	300ms
99	Cyan	400ms
100	Cyan	500ms
101	Cyan	600ms
102	Cyan	700ms
103	Cyan	800ms
104	Cyan	900ms
105	Cyan	1000ms
106-111	Cyan	No blinking
112	White	100ms
113	White	200ms
114	White	300ms
115	White	400ms
116	White	500ms
117	White	600ms
118	White	700ms
119	White	800ms
120	White	900ms
121	White	1000ms
122-127	White	No blinking

When "Blinking via MIDI clock" option is enabled, blink speed depends on MIDI clock rate, and depending on received MIDI value, clock divider is used. Table below shows the corresponding values:

Velocity/control value	Color	MIDI clock pulses	Blink rate (musical notation)
0-15	Off	N/A	No blinking
16	Red	2	1/16 triplet
17	Red	3	1/16 note
18	Red	4	1/8 triplet note
19	Red	6	1/8 note
20	Red	9	1/8 dotted note
21	Red	12	1/4 note
22	Red	18	1/4 dotted note
23	Red	24	1/2 note
24	Red	36	1/2 dotted note
25	Red	48	Whole note
26-31	Red	N/A	No blinking
32	Green	2	1/16 triplet
33	Green	3	1/16 note
34	Green	4	1/8 triplet note
35	Green	6	1/8 note
36	Green	9	1/8 dotted note
37	Green	12	1/4 note
38	Green	18	1/4 dotted note
39	Green	24	1/2 note
40	Green	36	1/2 dotted note
41	Green	48	Whole note
42-47	Green	N/A	No blinking
48	Yellow	2	1/16 triplet
49	Yellow	3	1/16 note
50	Yellow	4	1/8 triplet note
51	Yellow	6	1/8 note
52	Yellow	9	1/8 dotted note
53	Yellow	12	1/4 note
54	Yellow	18	1/4 dotted note
55	Yellow	24	1/2 note
56	Yellow	36	1/2 dotted note
57	Yellow	48	Whole note
58-63	Yellow	N/A	No blinking
64	Blue	2	1/16 triplet
65	Blue	3	1/16 note
66	Blue	4	1/8 triplet note
67	Blue	6	1/8 note
68	Blue	9	1/8 dotted note
69	Blue	12	1/4 note
70	Blue	18	1/4 dotted note
71	Blue	24	1/2 note
72	Blue	36	1/2 dotted note
73	Blue	48	Whole note
74-79	Blue	N/A	No blinking
80	Magenta	2	1/16 triplet
81	Magenta	3	1/16 note
82	Magenta	4	1/8 triplet note
83	Magenta	6	1/8 note
84	Magenta	9	1/8 dotted note
85	Magenta	12	1/4 note
86	Magenta	18	1/4 dotted note
87	Magenta	24	1/2 note
88	Magenta	36	1/2 dotted note
89	Magenta	48	Whole note
90-95	Magenta	N/A	No blinking
96	Cyan	2	1/16 triplet
97	Cyan	3	1/16 note
98	Cyan	4	1/8 triplet note
99	Cyan	6	1/8 note
100	Cyan	9	1/8 dotted note
101	Cyan	12	1/4 note
102	Cyan	18	1/4 dotted note
103	Cyan	24	1/2 note
104	Cyan	36	1/2 dotted note
105	Cyan	48	Whole note
106-111	Cyan	N/A	No blinking
112	White	2	1/16 triplet
113	White	3	1/16 note
114	White	4	1/8 triplet note
115	White	6	1/8 note
116	White	9	1/8 dotted note
117	White	12	1/4 note
118	White	18	1/4 dotted note
119	White	24	1/2 note
120	White	36	1/2 dotted note
121	White	48	Whole note
122-127	White	N/A	No blinking