M5Go Groove

4月 5, 2025 admin44 No Comments

M5StackのGroove拡張ユニットを3つ使ったテストです。

https://github.com/m5stack/M5-SAM2695
https://github.com/m5stack/M5Stack/tree/master/examples/Unit/JOYSTICK
https://github.com/m5stack/M5Stack/tree/master/examples/Unit/ANGLE

上記三つのプログラムをがっちゃんこして、動作確認をしました。
環境）Arduino IDE 2.3.5 / Mac 15.3.1

#include <M5Stack.h>
#include "M5_SAM2695.h"

M5_SAM2695 midi;

uint16_t cnt = 0;
char disp[100];
int trans = 0;

//angle
int sensorPin        = 36;   // set the input pin for the potentiometer.  
int last_sensorValue = 100;  // Stores the value last read by the sensor. 
int cur_sensorValue  = 0;     // Stores the value currently read by the sensor.

//joystick
#define JOY_ADDR (0x52)  // define Joystick I2C address.

void setup() {
    M5.begin(true, false, true, false);
    M5.Lcd.setTextColor(YELLOW);
    M5.Lcd.setTextSize(2);
    M5.Lcd.setCursor(70, 10);
    M5.Lcd.println("ANGLE MIDI STICK");
    midi.begin(&Serial2, MIDI_BAUD, 16, 17);
    M5.Lcd.setTextColor(WHITE);

    pinMode(sensorPin, INPUT);  // Sets the specified pin to input mode. 
    dacWrite(25, 0);  // disable the speak noise. 
    Wire.begin(21, 22, 400000UL);
}

byte note[3];
char data[100];
int frame = 0;

void loop() {
  static uint8_t x_data, y_data, button_data;

  M5.update();
  if(M5.BtnA.wasPressed()){
    trans --;
  }
  if(M5.BtnC.wasPressed()){
    trans ++;
  }
  if (Serial2.available()) {
    byte midiData = Serial2.read();
    if((midiData & 0x90) == 0x90 || (midiData & 0x80) == 0x80){
      cnt = 0;
    }
    else if(midiData < 0x80){
      if(cnt < 2){
        cnt ++;
      }
      else{
        return;
      }
    }
    note[cnt] = midiData;
    if(cnt == 2){
      uint8_t pitch = (int)note[1] + trans;
      if((note[0] & 0x90) == 0x90){
        sprintf(disp, "Note on : %02x  %02x %02x T: %d", note[0], pitch, note[2], trans);
        midi.setNoteOn(note[0] & 0x0f, pitch, note[2]);
      }
      else if((note[0] & 0x80) == 0x80){
        sprintf(disp, "Note off: %02x  %02x %02x T: %d", note[0], pitch, note[2], trans);
        midi.setNoteOff(note[0] & 0x0f,pitch, note[2]);
      }
    }
  }
  cur_sensorValue = analogRead(sensorPin);             // read the value from the sensor. 
  if (abs(cur_sensorValue - last_sensorValue) > 10) {  // debaunce
    M5.Lcd.fillRect(10, 50, 300, 70, BLACK);
    M5.Lcd.setCursor(10, 50);
    M5.Lcd.printf("Angle: %d",cur_sensorValue);
    last_sensorValue = cur_sensorValue;
  }
  Wire.requestFrom(JOY_ADDR, 3);     // Request 3 bytes from the slave device. 
  if (Wire.available()) {  
      x_data      = Wire.read();
      y_data      = Wire.read();
      button_data = Wire.read();

      M5.Lcd.setCursor(10, 110);
      M5.Lcd.printf("X:%d      ", x_data);
      M5.Lcd.setCursor(10, 140);
      M5.Lcd.printf("Y:%d      ", y_data);
      M5.Lcd.setCursor(10, 170);
      M5.Lcd.printf("BTN:%d      ", button_data);
  }
  frame ++;
  if(frame > 120){
    M5.Lcd.fillRect(0, 80, 300, 200, BLACK);
    M5.Lcd.setCursor(10, 80);
    M5.Lcd.printf(disp);
    frame = 0;
  }
}

#include <M5Stack.h>

#include "M5_SAM2695.h"

M5_SAM2695 midi;

uint16_t cnt = 0;

char disp[100];

int trans = 0;

//angle

int sensorPin = 36; // set the input pin for the potentiometer.

int last_sensorValue = 100; // Stores the value last read by the sensor.

int cur_sensorValue = 0; // Stores the value currently read by the sensor.

//joystick

#define JOY_ADDR (0x52) // define Joystick I2C address.

void setup() {

M5.begin(true, false, true, false);

M5.Lcd.setTextColor(YELLOW);

M5.Lcd.setTextSize(2);

M5.Lcd.setCursor(70, 10);

M5.Lcd.println("ANGLE MIDI STICK");

midi.begin(&Serial2, MIDI_BAUD, 16, 17);

M5.Lcd.setTextColor(WHITE);

pinMode(sensorPin, INPUT); // Sets the specified pin to input mode.

dacWrite(25, 0); // disable the speak noise.

Wire.begin(21, 22, 400000UL);

}

byte note[3];

char data[100];

int frame = 0;

void loop() {

static uint8_t x_data, y_data, button_data;

M5.update();

if(M5.BtnA.wasPressed()){

trans --;

}

if(M5.BtnC.wasPressed()){

trans ++;

}

if (Serial2.available()) {

byte midiData = Serial2.read();

if((midiData & 0x90) == 0x90 || (midiData & 0x80) == 0x80){

cnt = 0;

}

else if(midiData < 0x80){

if(cnt < 2){

cnt ++;

}

else{

return;

}

note[cnt] = midiData;

if(cnt == 2){

uint8_t pitch = (int)note[1] + trans;

if((note[0] & 0x90) == 0x90){

sprintf(disp, "Note on : %02x %02x %02x T: %d", note[0], pitch, note[2], trans);

midi.setNoteOn(note[0] & 0x0f, pitch, note[2]);

}

else if((note[0] & 0x80) == 0x80){

sprintf(disp, "Note off: %02x %02x %02x T: %d", note[0], pitch, note[2], trans);

midi.setNoteOff(note[0] & 0x0f,pitch, note[2]);

}

cur_sensorValue = analogRead(sensorPin); // read the value from the sensor.

if (abs(cur_sensorValue - last_sensorValue) > 10) { // debaunce

M5.Lcd.fillRect(10, 50, 300, 70, BLACK);

M5.Lcd.setCursor(10, 50);

M5.Lcd.printf("Angle: %d",cur_sensorValue);

last_sensorValue = cur_sensorValue;

}

Wire.requestFrom(JOY_ADDR, 3); // Request 3 bytes from the slave device.

if (Wire.available()) {

x_data = Wire.read();

y_data = Wire.read();

button_data = Wire.read();

M5.Lcd.setCursor(10, 110);

M5.Lcd.printf("X:%d ", x_data);

M5.Lcd.setCursor(10, 140);

M5.Lcd.printf("Y:%d ", y_data);

M5.Lcd.setCursor(10, 170);

M5.Lcd.printf("BTN:%d ", button_data);

}

frame ++;

if(frame > 120){

M5.Lcd.fillRect(0, 80, 300, 200, BLACK);

M5.Lcd.setCursor(10, 80);

M5.Lcd.printf(disp);

frame = 0;

}

レゴ互換になっていますので、このように組み立てができるのも面白いです。
M5Stackシリーズでは、いろいろな周辺機器を繋げられますが、同時に使おうとする時、コンフリクトなどで動作しないことがあります。
そういう意味では、Grooveは安心して使えます。今回は、PortA,B,Cを同時に使いました。
といっても動作確認程度ですので、これから活用していきたいです。

参考）https://decode.red/net/archives/2088

Category: 未分類

Tags: M5Stack