SIXTH GRADE SPAGETTI CODE

 /*

 * ACTIVITY: THE MODULAR PLANT

 * Current Status: SPAGHETTI CODE (Messy!)

 * Mission: Move the code into 3 functions.

 */

#include <Wire.h>

#include <Adafruit_GFX.h>

#include <Adafruit_SSD1306.h>

#include <Adafruit_SHT31.h>

#define SCREEN_WIDTH 128

#define SCREEN_HEIGHT 64

const int PIN_LED = 2; // LED Pin

// Global Objects

Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);

Adafruit_SHT31 sht30 = Adafruit_SHT31();

// GLOBAL VARIABLES (Shared Data)

float t = 0; // Temperature

float h = 0; // Humidity

void setup() {

  Serial.begin(115200);

  pinMode(PIN_LED, OUTPUT);

 

  if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {

    for(;;); // Stop if screen fails

  }

 

  if (!sht30.begin(0x44)) {  

    while (1) delay(1); // Stop if sensor fails

  }

 

  display.setTextColor(WHITE);

}

// ---------------------------------------------------------

// TODO: CREATE YOUR 3 FUNCTIONS HERE (BELOW THIS LINE)

// void blinkAlert() { ... }

// void readSHT30() { ... }

// void updateScreen() { ... }

// ---------------------------------------------------------

void loop() {

  // --- PART 1: BLINK ALERT ---

  // (Move this logic to void blinkAlert)

  digitalWrite(PIN_LED, HIGH);

  delay(200);

  digitalWrite(PIN_LED, LOW);

  delay(200);

  // --- PART 2: READ SENSOR ---

  // (Move this logic to void readSHT30)

  t = sht30.readTemperature();

  h = sht30.readHumidity();

  // --- PART 3: UPDATE SCREEN ---

  // (Move this logic to void updateScreen)

  display.clearDisplay();

 

  display.setTextSize(1);

  display.setCursor(0, 0);

  display.println("MODULAR PLANT SYSTEM");

  display.drawLine(0, 10, 128, 10, WHITE);

 

  display.setTextSize(2);

  display.setCursor(0, 25);

  display.print("T: "); display.print(t, 1); display.println(" C");

  display.print("H: "); display.print(h, 1); display.println(" %");

 

  display.display();

}