Prototype Boxing Bag Code

BoxingProto.ino

/*
  This example reads the acceleration values as relative direction and degrees,
  from the LSM6DS3 sensor and prints them to the Serial Monitor or Serial Plotter.

  The circuit: Arduino Nano 33 IoT only, no additional circuitry
*/

#include <Arduino_LSM6DS3.h>
#include <Adafruit_NeoPixel.h>
#include <map>

#define SPK_PIN 14
#define LED_PIN 15
#define NUM_PIXELS 5

Adafruit_NeoPixel ledStrip(NUM_PIXELS, LED_PIN, NEO_GRB + NEO_KHZ800);

float x, y, z;
int degreesX = 0;
int degreesY = 0;

void setup() {
  Serial.begin(9600);

  if (!IMU.begin()) {
    Serial.println("Failed to initialize IMU!");
    while (1);
  }

  Serial.print("Accelerometer sample rate = ");
  Serial.print(IMU.accelerationSampleRate());
  Serial.println("Hz");

  ledStrip.begin();

  analogWriteResolution(10);
	analogWrite(A0, 0);

}

std::string cmaj_scale[] = {"G3", "E3", "C3", "E3", "G3", "C4", "E4", "D4", "C4", "E3", "F#3", "G3", "G3", "G3", "E4", "D4", "C4", "B3", "A3", "B3", "C4", "C4", "G3", "E3", "C3"};




std::map<std::string, int> noteToFreq {
  {"C3" , 131},
  {"C#3", 139},
  {"D3", 147},
  {"E3", 165},
  {"F3", 175},
  {"F#3", 185},
  {"G3", 196},
  {"A3", 220},
  {"B3", 247},
  {"C4", 262},
  {"D4", 294},
  {"E4", 330},
  {"B4", 494},
};



int cmaj_pos = 0;

float vector;
float max_x = 0.0f;
int times = 0;
float color = 0;

int cooldown = 0;

float max_x2 =0, max_y=0, max_z=0;

void loop() {

    ledStrip.clear();
  
    if (IMU.accelerationAvailable()) {
        IMU.readAcceleration(x, y, z);
    }

    if(abs(x) > abs(max_x2)){
      max_x2 = x;
    }
    if(abs(y) > abs(max_y)){
      max_y = y;
    }
    if(abs(z) > abs(max_z)){
      max_z =z;
    }
    
    vector = sqrt(x * x + y * y + z * z);
    if(vector < 1.2 && cooldown <= 100){
      cooldown++;
      // Serial.println("COOLDOWN");
    }

    if(cooldown > 85){
      // Serial.println(vector);
      if (vector > max_x ) {
        max_x = vector;
        times = 0;
      }
      if (vector < max_x ) { //inversed pattern detection (aka I'm moving back the board)
        times++;
      }
    }
    

    //Y goes from -4 to 4, idles under 0.5
    //X and Z idle below -1, goes to -3

    if (times > 5 && max_x > 4 && color < 10) { //sample some value to avoid bouncing
      // Serial.print("MAX - X ");
      // Serial.print(max_x2);
      // Serial.print(" - Y ");
      // Serial.print(max_y);
      // Serial.print("- Z ");
      // Serial.print(max_z);
      if(abs(max_z) < 3.9){
        if(max_y > 0){
          Serial.println("LEFT");
        }else{
          Serial.println("RIGHT");
        }
      }else{
        Serial.println("FORWARD");
      }

      max_x2 = 0;
      max_y = 0;
      max_z = 0;
      cooldown =0;

      color = 255;
    
      max_x = 0.0f; //reset max X value
      // Serial.println("Hit detected");
      tone(SPK_PIN, noteToFreq[cmaj_scale[cmaj_pos]], 1000);
      cmaj_pos+=1;
      if(cmaj_pos > 24){
        cmaj_pos=0;
      }

    }

    

    for(int i=0; i<NUM_PIXELS; i++) {
        
        ledStrip.setPixelColor(i, ledStrip.Color(color,0,0));
        
        
        ledStrip.show();
    }
    if(color > 0){
      color-=1;
    }
}