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libraries/DHT20/examples/DHT20_plotter/DHT20_plotter.ino

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+//
+//    FILE: DHT20_plotter.ino
+//  AUTHOR: Rob Tillaart
+// PURPOSE: Demo for DHT20 I2C humidity & temperature sensor
+//     URL: https://github.com/RobTillaart/DHT20
+//
+//  Always check datasheet - front view
+//
+//          +--------------+
+//  VDD ----| 1            |
+//  SDA ----| 2    DHT20   |
+//  GND ----| 3            |
+//  SCL ----| 4            |
+//          +--------------+
+
+
+#include "DHT20.h"
+
+DHT20 DHT(&Wire);
+
+
+void setup()
+{
+  Wire.begin();
+  DHT.begin();  //  ESP32 default pins 21 22
+
+  Serial.begin(115200);
+  Serial.println("Humidity, Temperature");
+}
+
+
+void loop()
+{
+  if (millis() - DHT.lastRead() >= 1000)
+  {
+    //  note no error checking
+    DHT.read();
+    Serial.print(DHT.getHumidity(), 1);
+    Serial.print(", ");
+    Serial.println(DHT.getTemperature(), 1);
+  }
+}
+
+
+//  -- END OF FILE --