Adafruit_NeoTrellisM4 Class Reference

NeoTrellis M4 helper library that handles DMA NeoPixel, Keypad scanning, and some basic MIDI messages. More...

#include <Adafruit_NeoTrellisM4.h>

Inheritance diagram for Adafruit_NeoTrellisM4:

Public Member Functions
void	begin (void)
	Initialize the NeoTrellis, start the keypad scanner and turn all neopixels off. x.
void	tick (void)
	Check the keypads to determine whather they were just pressed/released. x.
void	autoUpdateNeoPixels (boolean flag)
	Whether we should automatically update the neopixels whenever we set/fill the colors. Auto-update is easier to use, but is slower. More...
void	setPixelColor (uint32_t pixel, uint32_t color)
	Set one neopixel with a 24-bit color (RGB in 888 format) More...
void	fill (uint32_t color)
	Fill the neopixels with a 24-bit color (RGB in 888 format) More...
uint8_t	num_keys (void)
	Getter for how many keys are available on this NeoTrellis. More...
void	enableUSBMIDI (boolean f)
	Whether to send MIDI messages over the USB port. More...
void	enableUARTMIDI (boolean f)
	Whether to send MIDI messages over the UART port. More...
void	setUARTMIDIchannel (uint8_t c)
	Configure the MIDI channel to use when using UART. More...
void	setUSBMIDIchannel (uint8_t c)
	Configure the MIDI channel to use when using USB. More...
void	noteOn (byte pitch, byte velocity)
	Send MIDI note on. More...
void	noteOff (byte pitch, byte velocity)
	Send MIDI note off. More...
void	pitchBend (int value)
	Send pitch bend MIDI message. More...
void	controlChange (byte control, byte value)
	Send control change MIDI message. More...
void	sendMIDI (void)
	Flush any pending MIDI messages for sending.
void	programChange (byte channel, byte program)
	Send program change MIDI message. More...

Detailed Description

NeoTrellis M4 helper library that handles DMA NeoPixel, Keypad scanning, and some basic MIDI messages.

Member Function Documentation

autoUpdateNeoPixels()

void Adafruit_NeoTrellisM4::autoUpdateNeoPixels

(

boolean

flag

)

Whether we should automatically update the neopixels whenever we set/fill the colors. Auto-update is easier to use, but is slower.

Parameters

flag	true if we should auto update (show()) x

setPixelColor()

void Adafruit_NeoTrellisM4::setPixelColor	(	uint32_t	pixel,
		uint32_t	color
	)

Set one neopixel with a 24-bit color (RGB in 888 format)

Parameters

pixel	The pixel index from 0 (top left) to 31 (bottom right)
color	The RGB888 color x

fill()

void Adafruit_NeoTrellisM4::fill

(

uint32_t

color

)

Fill the neopixels with a 24-bit color (RGB in 888 format)

Parameters

color

The RGB888 color x

num_keys()

uint8_t Adafruit_NeoTrellisM4::num_keys ( void  )

inline

Getter for how many keys are available on this NeoTrellis.

Returns

number of keys

enableUSBMIDI()

void Adafruit_NeoTrellisM4::enableUSBMIDI

(

boolean

flag

)

Whether to send MIDI messages over the USB port.

Parameters

flag	true for enable, false to disable x

enableUARTMIDI()

void Adafruit_NeoTrellisM4::enableUARTMIDI

(

boolean

flag

)

Whether to send MIDI messages over the UART port.

Parameters

flag	true for enable, false to disable x

setUARTMIDIchannel()

void Adafruit_NeoTrellisM4::setUARTMIDIchannel

(

uint8_t

c

)

Configure the MIDI channel to use when using UART.

Parameters

c	Channel number, from 0-15 x

setUSBMIDIchannel()

void Adafruit_NeoTrellisM4::setUSBMIDIchannel

(

uint8_t

c

)

Configure the MIDI channel to use when using USB.

Parameters

c	Channel number, from 0-15 x

noteOn()

void Adafruit_NeoTrellisM4::noteOn	(	byte	pitch,
		byte	velocity
	)

Send MIDI note on.

Parameters

pitch	7-bit note pitch value
velocity	7-bit note velocity

noteOff()

void Adafruit_NeoTrellisM4::noteOff	(	byte	pitch,
		byte	velocity
	)

Send MIDI note off.

Parameters

pitch	7-bit note pitch value
velocity	7-bit note velocity

pitchBend()

void Adafruit_NeoTrellisM4::pitchBend

(

int

value

)

Send pitch bend MIDI message.

Parameters

value

14-bit pitchbend value, from -8191 to 8192

controlChange()

void Adafruit_NeoTrellisM4::controlChange	(	byte	control,
		byte	value
	)

Send control change MIDI message.

Parameters

control	7-bit control name
value	7-bit control value

programChange()

void Adafruit_NeoTrellisM4::programChange	(	byte	channel,
		byte	program
	)

Send program change MIDI message.

Parameters

channel	Ranges from 0-15
program	7-bit program value

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The documentation for this class was generated from the following files:

• Adafruit_NeoTrellisM4.h
• Adafruit_NeoTrellisM4.cpp