mirror of
https://github.com/adafruit/DHT-sensor-library.git
synced 2023-10-23 22:20:38 +03:00
61 lines
1.1 KiB
C++
61 lines
1.1 KiB
C++
/* DHT library
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MIT license
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written by Adafruit Industries
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*/
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#ifndef DHT_H
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#define DHT_H
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#if ARDUINO >= 100
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#include "Arduino.h"
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#else
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#include "WProgram.h"
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#endif
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// Uncomment to enable printing out nice debug messages.
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//#define DHT_DEBUG
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// Define where debug output will be printed.
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#define DEBUG_PRINTER Serial
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// Setup debug printing macros.
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#ifdef DHT_DEBUG
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#define DEBUG_PRINT(...) { DEBUG_PRINTER.print(__VA_ARGS__); }
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#define DEBUG_PRINTLN(...) { DEBUG_PRINTER.println(__VA_ARGS__); }
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#else
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#define DEBUG_PRINT(...) {}
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#define DEBUG_PRINTLN(...) {}
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#endif
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// Define types of sensors.
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#define DHT11 11
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#define DHT22 22
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#define DHT21 21
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#define AM2301 21
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class DHT {
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public:
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DHT(uint8_t pin, uint8_t type, uint8_t count=6);
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void begin(void);
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float readTemperature(bool S=false);
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float convertCtoF(float);
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float convertFtoC(float);
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float computeHeatIndex(float tempFahrenheit, float percentHumidity);
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float readHumidity(void);
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boolean read(void);
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private:
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uint8_t data[6];
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uint8_t _pin, _type;
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uint32_t _lastreadtime;
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bool _firstreading;
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bool _lastresult;
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uint32_t expectPulse(bool level);
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};
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#endif
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