Aerobic Working

#include <Arduino.h>

#include "sensirion_common.h"
#include "sgp30.h"
//#include"Free_Fonts.h" 
#include"TFT_eSPI.h"
TFT_eSPI tft;

#define BUZZER_PIN WIO_BUZZER /* sig pin of the buzzer */

int beats[] = { 1, 2, 4, 8, 16, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1 };
int tempo = 100;

void setup() {
    s16 err;
    u16 scaled_ethanol_signal, scaled_h2_signal;
    Serial.begin(115200);
    Serial.println("serial start!!");
    
    tft.begin();
    tft.setRotation(1);
    digitalWrite(LCD_BACKLIGHT, HIGH); // turn on the backlight
    
    tft.fillScreen(TFT_DARKGREY);

    tft.setTextSize(2);
    tft.setTextColor(TFT_GREENYELLOW, TFT_DARKGREY);
    tft.drawString("A", 7, 4);
    tft.setTextSize(1);
    tft.setTextColor(TFT_LIGHTGREY, TFT_DARKGREY);
    tft.drawString("ir ", 18, 9);
    tft.setTextSize(2);
    tft.setTextColor(TFT_NAVY, TFT_DARKGREY);
    tft.drawString("M", 32, 4);
    tft.setTextSize(1);
    tft.setTextColor(TFT_LIGHTGREY, TFT_DARKGREY);
    tft.drawString("onitor ", 45, 9);
    //tft.fillRoundRect(90,4,20,15,3,TFT_GREENYELLOW);
    tft.drawRoundRect(3,2,80,20,5,TFT_GREENYELLOW);

    tft.setTextSize(3);
    tft.setTextColor(TFT_GREENYELLOW, TFT_DARKGREY);
    tft.drawString("seeed", 225, 185);
    tft.setTextColor(TFT_DARKCYAN, TFT_DARKGREY);
    tft.drawString("studio", 205, 210);

    /*For wio link!*/
    #if defined(ESP8266)
    pinMode(15, OUTPUT);
    digitalWrite(15, 1);
    Serial.println("Set wio link power!");
    delay(500);
    #endif
    /*  Init module,Reset all baseline,The initialization takes up to around 15 seconds, during which
        all APIs measuring IAQ(Indoor air quality ) output will not change.Default value is 400(ppm) for co2,0(ppb) for tvoc*/
    while (sgp_probe() != STATUS_OK) {
        Serial.println("SGP failed");
        while (1);
    }
    /*Read H2 and Ethanol signal in the way of blocking*/
    err = sgp_measure_signals_blocking_read(&scaled_ethanol_signal,
                                            &scaled_h2_signal);
    if (err == STATUS_OK) {
        Serial.println("get ram signal!");
    } else {
        Serial.println("error reading signals");
    }
    err = sgp_iaq_init();
}

void loop() {
    s16 err = 0;
    u16 tvoc_ppb, co2_eq_ppm;
    err = sgp_measure_iaq_blocking_read(&tvoc_ppb, &co2_eq_ppm);
    int bgColor;
    
    if (err == STATUS_OK) {
        Serial.print("tVOC  Concentration:");
        Serial.print(tvoc_ppb);
        Serial.println("ppb");

        Serial.print("CO2eq Concentration:");
        Serial.print(co2_eq_ppm);
        Serial.println("ppm");

        tft.setTextSize(2);
        if(co2_eq_ppm>=1000) {
            bgColor=TFT_RED;
            tft.fillRect(110,50,110,100,bgColor); //A 100x100 black rectangle starting from (110, 70)
            tft.setTextColor(TFT_WHITE,bgColor);
            tft.drawString(" 1000+  ", 115, 75);
            tft.drawString(" Alarm! ", 115, 115);
            Serial.println("1000 alarm!");            
        }
        else if(co2_eq_ppm>=600) {
            bgColor=TFT_ORANGE;
            tft.fillRect(110,50,110,100,bgColor); //A 100x100 black rectangle starting from (110, 70)
            tft.setTextColor(TFT_WHITE,bgColor);
            tft.drawString("  600+  ", 115, 75);
            tft.drawString("Warning!", 115, 115);
            Serial.println("600 warning!");
        }
        else if(co2_eq_ppm>=450) {
            bgColor=TFT_GREEN;
            tft.fillRect(110,50,110,100,bgColor); //A 100x100 black rectangle starting from (110, 70)
            tft.setTextColor(TFT_WHITE,bgColor);
            tft.drawString("  450+  ", 115, 75);
            tft.drawString(" Notice.", 115, 115);
            Serial.println("450 notice.");
        }
        else  {
            bgColor=TFT_BLUE;
            tft.fillRect(110,50,110,100,bgColor); //A 100x100 black rectangle starting from (110, 70)
            tft.setTextColor(TFT_WHITE,bgColor);
            tft.drawString("  400+  ", 115, 75);
            tft.drawString(" Normal.", 115, 115);
            Serial.println("OK!");
        }
        playNote(min((co2_eq_ppm-300)/150,4), beats[min((co2_eq_ppm-300)/150,4)] * tempo);
        Serial.println(min((co2_eq_ppm-300)/150,4));
        
    } else {
        Serial.println("error reading IAQ values\n");
    }
    
      //tft.setFreeFont(&FreeSansBoldOblique7pt7b); //select Free, Sans, Bold, Oblique, 12pt.
      tft.setTextSize(1);
      tft.setTextColor(TFT_WHITE,TFT_DARKGREY);
      tft.drawString("CO2eq(ppm):",10,212);
      tft.drawString(String(co2_eq_ppm)+"    ", 90, 212);
      tft.drawString("tvoc(ppb):", 16, 190);
      tft.drawString(String(tvoc_ppb)+"  ", 90, 190);
      /*          
                xpos += tft.drawChar('0', xpos, ypos, 8);    // Add hours leading zero for 24 hr clock
            xpos += tft.drawNumber(hh, xpos, ypos, 8);             // Draw hours            
                tft.setTextColor(0x39C4, bgColor);        // Set colour to grey to dim colon
                tft.setTextColor(TFT_WHITE, bgColor);    // Set colour back to yellow
      */
    
    delay(1000);
}

void playTone(int tone, int duration) {
    for (long i = 0; i < duration * 1000L; i += tone * 2) {
        digitalWrite(BUZZER_PIN, HIGH);
        delayMicroseconds(tone);
        digitalWrite(BUZZER_PIN, LOW);
        delayMicroseconds(tone);
    }
}
 
void playNote(int note, int duration) {
    int tones[] = { 2095, 1047, 523, 261, 20, 20, 20, 20 };
 
    // play the tone corresponding to the note name
        if (note > 0) {
            playTone(tones[note-1], duration);
            Serial.println(note);
            Serial.println(tones[note-1]);            
            Serial.println(duration);
        }
}