/* An example showing linear analogue meter */ // Meter colour schemes #define SECS_PER_MIN (60UL) #define RXD2 13 #define TXD2 12 #define PIN 33 #define BLYNK_PRINT Serial #define numberOfSeconds(_time_) (_time_ % SECS_PER_MIN) #define numberOfMinutes(_time_) ((_time_ / SECS_PER_MIN) % SECS_PER_MIN) const int numReadings = 10; #include #include #include "Adafruit_PM25AQI.h" #include #include #include #include char auth[] = ""; // Your WiFi credentials. // Set password to "" for open networks. char ssid[] = ""; char pass[] = ""; Adafruit_PM25AQI aqi = Adafruit_PM25AQI(); Adafruit_NeoPixel strip = Adafruit_NeoPixel(8, PIN, NEO_GRB + NEO_KHZ800); int zedLevel = 1; int minutes; int seconds; int changer = 0; float total = 0; float maxDust = 1; float timerTrue = 0.0; int bight = 0; int readings[numReadings]; // the readings from the analog input int readIndex = 0; // the index of the current reading int total2 = 0; // the running total int average = 0; // the average bool tell = 0; TFT_eSPI tft = TFT_eSPI(); BlynkTimer timer; int reading = 0; void setup(void) { Serial.begin(115200); Serial1.begin(9600, SERIAL_8N1, RXD2, TXD2); Blynk.begin(auth, ssid, pass); delay(2000); timer.setInterval(5000L, blynkPrint); tft.begin(); tft.setRotation(0); tft.fillScreen(TFT_BLACK); timerTrue = 0; total = 0; if (! aqi.begin_UART(&Serial1)) { // connect to the sensor over hardware serial //if (! aqi.begin_UART(&pmSerial)) { // connect to the sensor over software serial Serial.println("Could not find PM 2.5 sensor!"); while (1) delay(10); } Serial.println("PM25 found!"); for (int thisReading = 0; thisReading < numReadings; thisReading++) { readings[thisReading] = 0; } //tft.fillScreen(TFT_RED); tft.setTextColor(TFT_GREEN, TFT_BLACK); tft.drawString("TOAST",35,20,4); tft.drawString("TEST",40,60,4); tft.fillCircle( 70,110,20,TFT_WHITE); tft.fillRect(50,100,45,40,TFT_WHITE); tft.fillRect(20,120,100,80,TFT_GREEN); tft.drawRect(20,120,100,80,TFT_RED); delay(5000); tft.fillScreen(TFT_BLACK); strip.begin(); strip.show(); // initialize all pixels to "off" pinMode(0, INPUT_PULLUP); } void loop() { Blynk.run(); strip.show(); brighten(zedLevel); PM25_AQI_Data data; if (! aqi.read(&data)) { Serial.println("Could not read from AQI"); delay(500); // try again in a bit! return; } if(digitalRead(0) == 0) { tell = 0; timerTrue = millis(); maxDust = 1; } Serial.println("AQI reading success"); if((data.pm25_standard >= 1000) && (maxDust < data.pm25_standard)) { tell = 1; timerTrue = millis(); maxDust = data.pm25_standard; } tft.setRotation(0); tft.setTextColor(TFT_GREEN, TFT_BLACK); //total = data.pm25_standard; //tft.drawCentreString("NUMBER",132,5,4); tft.drawNumber(int(total),5,5,7); if(!tell){ tft.fillCircle(85,120,70,TFT_RED); tft.setTextColor(TFT_GREEN, TFT_RED); tft.drawString("INSERT",35,80,4); tft.drawString("TOAST",40,140,4); } if(tell){ timer.run(); tft.drawNumber(int(maxDust),40,220,4); tft.setRotation(1); int percent = ((total/maxDust) * 100); tft.drawNumber(int(percent),60,110,4); tft.drawString("%",100,110,4); int clocker = (millis() - timerTrue)/1000; time(clocker); tft.drawNumber(minutes,140,110,4); tft.drawString(":",160,110,4); tft.drawNumber(seconds,170,110,4); reading = map(total,0, maxDust, 20,0); int diff = total - data.pm25_standard; int flight = map(diff, -100, 100, 1,19); linearMeter(flight, 55, 10, 5, 35, 3, 19, 0); linearMeter(reading, 55, 60, 5, 35, 3, 19, 0); } //changer = int(random(-100,100)); total2 = total2 - readings[readIndex]; // read from the sensor: readings[readIndex] = data.pm25_standard; // add the reading to the total: total2 = total2 + readings[readIndex]; // advance to the next position in the array: readIndex = readIndex + 1; // if we're at the end of the array... if (readIndex >= numReadings) { // ...wrap around to the beginning: readIndex = 0; } // calculate the average: total = total2 / numReadings; // send it to the computer as ASCII digits Serial.println(total); if(total < 25) zedLevel = 3; else if(total > 24 && total < 80) zedLevel = 2; else zedLevel = 1; Serial.println(total); delay (1000); tft.fillScreen(TFT_BLACK); } // ######################################################################### // Draw the linear meter // ######################################################################### // val = reading to show (range is 0 to n) // x, y = position of top left corner // w, h = width and height of a single bar // g = pixel gap to next bar (can be 0) // n = number of segments // s = colour scheme void linearMeter(int val, int x, int y, int w, int h, int g, int n, byte s) { // Variable to save "value" text colour from scheme and set default int colour = TFT_BLUE; // Draw n colour blocks for (int b = 1; b <= n; b++) { if (val > 0 && b <= val) { // Fill in coloured blocks colour = TFT_BLUE; tft.fillRect(x + b*(w+g), y, w, h, colour); } else // Fill in blank segments { tft.fillRect(x + b*(w+g), y, w, h, TFT_RED); } tft.fillRect(135,10,5,35,TFT_WHITE); } } void time(long val){ minutes = numberOfMinutes(val); seconds = numberOfSeconds(val); } void brighten(int q) { uint16_t i, j; Serial.print("this is q"); Serial.println(q); switch (q) { case 1: for (j = 5; j < 155; j++) { for (i = 0; i < strip.numPixels(); i++) { strip.setPixelColor(i, j, 0, 0); } strip.show(); delay(255/(j+1)); } for (j = 155; j > 6; j--) { for (i = 0; i < strip.numPixels(); i++) { strip.setPixelColor(i, j, 0, 0); } strip.show(); delay(255/(j+1)); } break; case 2: for (j = 5; j < 155; j++) { for (i = 0; i < strip.numPixels(); i++) { strip.setPixelColor(i, 0, j, 0); } strip.show(); delay(255/(j+1)); } for (j = 155; j > 6; j--) { for (i = 0; i < strip.numPixels(); i++) { strip.setPixelColor(i, 0, j, 0); } strip.show(); delay(255/(j+1)); } break; case 3: for (j = 5; j < 155; j++) { for (i = 0; i < strip.numPixels(); i++) { strip.setPixelColor(i, 0, 0, j); } strip.show(); delay(255/(j+1)); } for (j = 155; j > 6; j--) { for (i = 0; i < strip.numPixels(); i++) { strip.setPixelColor(i, 0, 0, j); } strip.show(); delay(255/(j+1)); } break; } } void blynkPrint(){ Blynk.virtualWrite(V4, total); }