2024-10-1200

platformio.ini

@@ -21,6 +21,7 @@ lib_deps =
     paulstoffregen/XPT2046_Touchscreen @ 0.0.0-alpha+sha.26b691b2c8
     adafruit/Adafruit Unified Sensor @ 1.1.14
     #adafruit/Adafruit HTU21DF Library @ 1.0.5
+    milesburton/DallasTemperature @ 3.11.0
 
 build_flags = ${env.build_flags}
     -DKorrekturTemperatur=0.0

src/main.cpp

@@ -41,6 +41,18 @@ int d = 0;
 void analogMeter();
 void plotNeedle(int value, byte ms_delay);
 
+#include <OneWire.h>
+#include <DallasTemperature.h>
+
+// Data wire is plugged into port 2 on the Arduino
+#define ONE_WIRE_BUS 22
+
+// Setup a oneWire instance to communicate with any OneWire devices (not just Maxim/Dallas temperature ICs)
+OneWire oneWire(ONE_WIRE_BUS);
+
+// Pass our oneWire reference to Dallas Temperature.
+DallasTemperature sensors(&oneWire);
+
 void setup(void) {
   tft.init();
   tft.setRotation(1);
@@ -50,25 +62,48 @@ void setup(void) {
   //I2C_2.begin(SDA_2, SCL_2, I2C_FREQ);
   //delay(9000);
 
+  sensors.requestTemperatures(); // Send the command to get temperatures
+  Serial.println("DONE");
+
+  Serial.print("Temperature for the device 1 (index 0) is: ");
+  Serial.println(sensors.getTempCByIndex(0));
+
+  //delay(10000);
+
   analogMeter(); // Draw analogue meter
 
   updateTime = millis(); // Next update time
   pinMode(ledGreen, OUTPUT);
   analogWrite(ledGreen, 102);
   //init_HTU21();
-  delay(5000);
+  //delay(5000);
 }
 
 
 void loop() {
+  float Temperatur;
   if (updateTime <= millis()) {
-    updateTime = millis() + 35; // Update meter every 35 milliseconds
+    updateTime = millis() + 5000; // Update meter every 35 milliseconds
  
     // Create a Sine wave for testing
     d += 4; if (d >= 360) d = 0;
     value[0] = 50 + 50 * sin((d + 0) * 0.0174532925);
- 
+    sensors.requestTemperatures(); // Send the command to get temperatures
+    Temperatur = sensors.getTempCByIndex(0);
     plotNeedle(value[0], 0); // It takes between 2 and 12ms to replot the needle with zero delay
+    tft.fillRect(0, 179, 310, 60, TFT_GREEN);
+    tft.setTextColor(TFT_BLACK,TFT_GREEN); 
+    if (!Temperatur <= 127.000){
+      tft.drawString("Temperatur: ", 1, 180, 4);
+      tft.drawFloat(Temperatur, 1.2,160, 180,4);
+      tft.drawString("o", 212, 180, 1);
+      tft.drawString("C", 220, 180, 4);
+      tft.drawString("Raumfeuchtigkeit:", 1, 210, 4);
+      char buf[8]; dtostrf(value[0], 3, 0, buf);
+      tft.drawString(buf, 230, 210, 4);
+      tft.drawString("%", 270, 210, 4);
+    }
+    Serial.print(Temperatur,4); Serial.println(" °C");
   }
 }