mirror of https://github.com/arendst/Tasmota.git
88 lines
2.5 KiB
C
88 lines
2.5 KiB
C
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/*!
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* @file Adafruit_MCP9808.h
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*
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* I2C Driver for Microchip's MCP9808 I2C Temp sensor
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*
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* This is a library for the Adafruit MCP9808 breakout:
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* http://www.adafruit.com/products/1782
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*
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* Adafruit invests time and resources providing this open source code,
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*please support Adafruit and open-source hardware by purchasing products from
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* Adafruit!
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*
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*
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* BSD license (see license.txt)
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*
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* changes by Martin Wagner for tasmota project:
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*
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* - the libary supports variabel I2C address
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*
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*/
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#ifndef _ADAFRUIT_MCP9808_H
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#define _ADAFRUIT_MCP9808_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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#include <Wire.h>
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#define MCP9808_I2CADDR_DEFAULT 0x18 ///< I2C address
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#define MCP9808_REG_CONFIG 0x01 ///< MCP9808 config register
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#define MCP9808_REG_CONFIG_SHUTDOWN 0x0100 ///< shutdown config
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#define MCP9808_REG_CONFIG_CRITLOCKED 0x0080 ///< critical trip lock
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#define MCP9808_REG_CONFIG_WINLOCKED 0x0040 ///< alarm window lock
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#define MCP9808_REG_CONFIG_INTCLR 0x0020 ///< interrupt clear
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#define MCP9808_REG_CONFIG_ALERTSTAT 0x0010 ///< alert output status
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#define MCP9808_REG_CONFIG_ALERTCTRL 0x0008 ///< alert output control
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#define MCP9808_REG_CONFIG_ALERTSEL 0x0004 ///< alert output select
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#define MCP9808_REG_CONFIG_ALERTPOL 0x0002 ///< alert output polarity
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#define MCP9808_REG_CONFIG_ALERTMODE 0x0001 ///< alert output mode
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#define MCP9808_REG_UPPER_TEMP 0x02 ///< upper alert boundary
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#define MCP9808_REG_LOWER_TEMP 0x03 ///< lower alert boundery
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#define MCP9808_REG_CRIT_TEMP 0x04 ///< critical temperature
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#define MCP9808_REG_AMBIENT_TEMP 0x05 ///< ambient temperature
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#define MCP9808_REG_MANUF_ID 0x06 ///< manufacture ID
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#define MCP9808_REG_DEVICE_ID 0x07 ///< device ID
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#define MCP9808_REG_RESOLUTION 0x08 ///< resolutin
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/*!
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* @brief Class that stores state and functions for interacting with
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* MCP9808 Temp Sensor
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*/
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class Adafruit_MCP9808 {
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public:
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Adafruit_MCP9808();
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bool begin();
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bool begin(TwoWire *theWire);
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bool begin(uint8_t addr);
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bool begin(uint8_t addr, TwoWire *theWire);
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bool init();
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float readTempC(uint8_t addr);
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float readTempF(uint8_t addr);
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uint8_t getResolution(uint8_t addr);
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void setResolution(uint8_t addr, uint8_t value);
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void shutdown_wake(uint8_t addr, boolean sw);
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void shutdown(uint8_t addr);
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void wake(uint8_t addr);
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void write16(uint8_t reg, uint16_t val);
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uint16_t read16(uint8_t reg);
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void write8(uint8_t reg, uint8_t val);
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uint8_t read8(uint8_t reg);
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private:
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TwoWire *_wire;
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uint8_t _i2caddr;
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};
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#endif
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