Custom-Note-LED-Input-Element-Callback
This example demonstrates how to attach custom actions to incoming Note or Control Change MIDI events.
- Boards:
- AVR, AVR USB, Due, Nano 33 IoT, Nano 33 BLE, Pi Pico, Teensy 3.x
Connections
- Pin 3 (PWM pin): An LED (with current-limiting resistor) to ground.
Behavior
If a MIDI Note On event for note 0x3C (C4 or middle C) is sent, the built-in LED will light up at full brightness, if a Note Off event for that note is sent, the LED will light dimly.
(A Note On event with a velocity of zero also counts as a Note Off event.)
Mapping
Route the MIDI output of a MIDI keyboard to the Arduino's MIDI input. Then play a middle C on the keyboard.
Written by PieterP, 2020-03-10
https://github.com/tttapa/Control-Surface
class CustomNoteLED
TwoByteMIDIMatcher> {
public:
lowBrightness(lowBrightness) {}
}
if (match.
value >= threshold)
else
}
private:
uint8_t lowBrightness;
const static uint8_t threshold = 0x01;
};
CustomNoteLED led {
3,
10,
};
void setup() {
}
void loop() {
}
constexpr PinStatus_t HIGH
constexpr PinMode_t OUTPUT
constexpr Channel CHANNEL_1
The main header file that includes all Control-Surface header files.
Control_Surface_ & Control_Surface
A predefined instance of the Control Surface to use in the Arduino sketches.
void begin()
Initialize the Control_Surface.
void loop()
Update all MIDI elements, send MIDI events and read MIDI input.
A type-safe utility class for saving a MIDI address consisting of a 7-bit address,...
A class for MIDI interfaces sending MIDI messages over a USB MIDI connection.
void analogWrite(pin_t pin, analog_t val)
An ExtIO version of the Arduino function.
void pinMode(pin_t pin, PinMode_t mode)
An ExtIO version of the Arduino function.
void digitalWrite(pin_t pin, PinStatus_t val)
An ExtIO version of the Arduino function.
uint16_t pin_t
The type for Arduino pins (and ExtendedIOElement pins).