initial file

main/main.ino

@@ -0,0 +1,72 @@
+// for sensor
+#include <OneWire.h>
+#include <DallasTemperature.h>
+#define ONE_WIRE_BUS 4
+// Setup a oneWire instance to communicate with any OneWire devices
+OneWire oneWire(ONE_WIRE_BUS);
+
+// Pass our oneWire reference to Dallas Temperature sensor 
+DallasTemperature sensors(&oneWire);
+
+// for the display
+#include <Wire.h>
+#include <Adafruit_GFX.h>
+#include <Adafruit_SSD1306.h>
+
+#define SCREEN_WIDTH 128 // OLED display width, in pixels
+#define SCREEN_HEIGHT 64 // OLED display height, in pixels
+
+// Declaration for an SSD1306 display connected to I2C (SDA, SCL pins)
+Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);
+
+// Other global variables
+bool fillCircle = false;
+
+// Draw a small circle, change between emtpy and full to indicate that there is an update on the display and not stock
+void drawCircle() {
+  if(fillCircle){
+    display.fillCircle(5, 5, 5, WHITE);
+    fillCircle = !fillCircle;
+  } else {
+    display.drawCircle(5, 5, 5, WHITE);
+    fillCircle = !fillCircle;
+  }
+
+}
+
+// small function to write text on the display with option for changing font
+void textToDisplay(char* text = "default", int fontSize = 1) {
+  display.clearDisplay();
+  drawCircle();
+  display.setTextSize(fontSize);
+  display.setTextColor(WHITE);
+  display.setCursor(20, 0);
+  // Display static text
+  display.println(text);
+  display.display(); 
+}
+
+
+void setup() {
+  Serial.begin(9600);
+
+  if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) { // Address 0x3D for 128x64
+    Serial.println(F("SSD1306 allocation failed"));
+    for(;;);
+  }
+  // Start up the library
+  sensors.begin();
+  textToDisplay("Finished setup...");
+  delay(1000);
+
+}
+
+void loop() {
+  // Call sensors.requestTemperatures() to issue a global temperature and Requests to all devices on the bus
+  sensors.requestTemperatures(); 
+  float temp = sensors.getTempCByIndex(0);
+  String message = String(temp) + " C";  // Convert float to String, then concatenate
+  textToDisplay(message.c_str(),2);
+  Serial.println(message.c_str());
+  delay(1000);
+}