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@@ -3,14 +3,14 @@
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#include "DHT.h"
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-#define DHTPIN 2 // what pin we're connected to
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+#define DHTPIN 2 // what pin we're connected to（DHT10 and DHT20 don't need define it）
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// Uncomment whatever type you're using!
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//#define DHTTYPE DHT11 // DHT 11
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#define DHTTYPE DHT22 // DHT 22 (AM2302)
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//#define DHTTYPE DHT21 // DHT 21 (AM2301)
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-/*Notice: The DHT10 is different from other DHT* sensor ,it uses i2c interface rather than one wire*/
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+/*Notice: The DHT10 and DHT20 is different from other DHT* sensor ,it uses i2c interface rather than one wire*/
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/*So it doesn't require a pin.*/
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//#define DHTTYPE DHT10
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@@ -21,8 +21,8 @@
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// Connect pin 4 (on the right) of the sensor to GROUND
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// Connect a 10K resistor from pin 2 (data) to pin 1 (power) of the sensor
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-DHT dht(DHTPIN, DHTTYPE);
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-//DHT dht(DHTTYPE); //DHT11 DHT20 don't need to define Pin
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+DHT dht(DHTPIN, DHTTYPE); //DHT11 DHT21 DHT22
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+//DHT dht(DHTTYPE); //DHT10 DHT20 don't need to define Pin
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#if defined(ARDUINO_ARCH_AVR)
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#define debug Serial
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IsQianGe