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https://github.com/RobTillaart/Arduino.git
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60 lines
1.4 KiB
C++
60 lines
1.4 KiB
C++
#pragma once
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//
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// FILE: DHT12.h
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// AUTHOR: Rob Tillaart
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// PURPOSE: DHT_I2C library for Arduino .
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// VERSION: 0.3.3
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// HISTORY: See DHT12.cpp
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// URL: https://github.com/RobTillaart/DHT12
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//
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#include "Arduino.h"
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#include "Wire.h"
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#define DHT12_LIB_VERSION (F("0.3.3"))
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#define DHT12_OK 0
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#define DHT12_ERROR_CHECKSUM -10
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#define DHT12_ERROR_CONNECT -11
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#define DHT12_MISSING_BYTES -12
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class DHT12
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{
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public:
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DHT12(TwoWire *wire); // to be tested explicitly
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#if defined(ESP8266) || defined(ESP32)
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bool begin(const uint8_t dataPin, const uint8_t clockPin);
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#endif
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bool begin();
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bool isConnected();
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int8_t read();
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float getHumidity() { return _humidity + _humOffset; };
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float getTemperature() { return _temperature + _tempOffset; };
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// allows 1st order calibration
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void setHumOffset(float offset) { _humOffset = offset; };
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void setTempOffset(float offset) { _tempOffset = offset; };
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float getHumOffset() { return _humOffset; };
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float getTempOffset() { return _tempOffset; };
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uint32_t lastRead() { return _lastRead; };
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private:
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float _humidity;
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float _temperature;
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float _humOffset;
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float _tempOffset;
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uint8_t _bits[5];
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uint32_t _lastRead;
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int _readSensor();
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TwoWire* _wire;
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};
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// -- END OF FILE --
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