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