42528b07aa
Features:
- Fixed coefficient parsing with correct bit field extraction
- Temperature and pressure compensation algorithms
- Pressure readings in hPa (hectopascals)
- Adafruit_Sensor unified interface compatibility
- Complete register access and configuration API
- FIFO support and interrupt handling
🤖 Generated with Claude Code
Co-Authored-By: Claude <noreply@anthropic.com>
256 lines
No EOL
8.1 KiB
C++
256 lines
No EOL
8.1 KiB
C++
/*!
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* @file Adafruit_SPA06003.h
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*
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* This is part of Adafruit's SPA06003 driver for the Arduino platform. It is
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* designed specifically to work with the Adafruit SPA06003 breakout:
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* https://www.adafruit.com/products/xxxx
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*
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* These sensors use I2C to communicate, 2 pins (SCL+SDA) are required
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* to interface with the breakout.
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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
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* products from Adafruit!
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*
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* Written by Limor 'ladyada' Fried with assistance from Claude Code
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* for Adafruit Industries.
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*
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* MIT license, all text here must be included in any redistribution.
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*
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*/
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#ifndef _ADAFRUIT_SPA06_003_H
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#define _ADAFRUIT_SPA06_003_H
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#include <Adafruit_BusIO_Register.h>
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#include <Adafruit_I2CDevice.h>
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#include <Adafruit_Sensor.h>
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#include <Wire.h>
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#include "Arduino.h"
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// Forward declarations
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class Adafruit_SPA06_003_Temp;
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class Adafruit_SPA06_003_Pressure;
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/*=========================================================================
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I2C ADDRESS/BITS
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-----------------------------------------------------------------------*/
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/**
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* @brief Default I2C address for SPA06_003
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*/
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#define SPA06_003_DEFAULT_ADDR 0x77
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/*=========================================================================
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REGISTERS
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-----------------------------------------------------------------------*/
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/**
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* @brief Pressure data registers
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*/
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#define SPA06_003_REG_PSR_B2 0x00
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#define SPA06_003_REG_PSR_B1 0x01
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#define SPA06_003_REG_PSR_B0 0x02
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/**
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* @brief Temperature data registers
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*/
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#define SPA06_003_REG_TMP_B2 0x03
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#define SPA06_003_REG_TMP_B1 0x04
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#define SPA06_003_REG_TMP_B0 0x05
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/**
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* @brief Configuration registers
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*/
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#define SPA06_003_REG_PRS_CFG 0x06
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#define SPA06_003_REG_TMP_CFG 0x07
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#define SPA06_003_REG_MEAS_CFG 0x08
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#define SPA06_003_REG_CFG_REG 0x09
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/**
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* @brief Status registers
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*/
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#define SPA06_003_REG_INT_STS 0x0A
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#define SPA06_003_REG_FIFO_STS 0x0B
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/**
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* @brief Control registers
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*/
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#define SPA06_003_REG_RESET 0x0C
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#define SPA06_003_REG_ID 0x0D
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/**
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* @brief Calibration coefficient registers
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*/
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#define SPA06_003_REG_COEF 0x10
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/*=========================================================================
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INTERRUPT STATUS FLAGS (INT_STS register 0x0A)
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-----------------------------------------------------------------------*/
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/**
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* @brief Interrupt status flag definitions
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*/
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#define SPA06_003_INT_FIFO_FULL 0x04 ///< FIFO full flag
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#define SPA06_003_INT_TMP_RDY 0x02 ///< Temperature measurement ready flag
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#define SPA06_003_INT_PRS_RDY 0x01 ///< Pressure measurement ready flag
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/*=========================================================================*/
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/**
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* @brief Measurement rate options (pressure and temperature)
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*/
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typedef enum {
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SPA06_003_RATE_1 = 0x00, ///< 1 measurements per second
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SPA06_003_RATE_2 = 0x01, ///< 2 measurements per second
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SPA06_003_RATE_4 = 0x02, ///< 4 measurements per second
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SPA06_003_RATE_8 = 0x03, ///< 8 measurements per second
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SPA06_003_RATE_16 = 0x04, ///< 16 measurements per second
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SPA06_003_RATE_32 = 0x05, ///< 32 measurements per second
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SPA06_003_RATE_64 = 0x06, ///< 64 measurements per second
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SPA06_003_RATE_128 = 0x07, ///< 128 measurements per second
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SPA06_003_RATE_25_16 = 0x08, ///< 25/16 samples per second
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SPA06_003_RATE_25_8 = 0x09, ///< 25/8 samples per second
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SPA06_003_RATE_25_4 = 0x0A, ///< 25/4 samples per second
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SPA06_003_RATE_25_2 = 0x0B, ///< 25/2 samples per second
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SPA06_003_RATE_25 = 0x0C, ///< 25 samples per second
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SPA06_003_RATE_50 = 0x0D, ///< 50 samples per second
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SPA06_003_RATE_100 = 0x0E, ///< 100 samples per second
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SPA06_003_RATE_200 = 0x0F ///< 200 samples per second
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} spa06_003_rate_t;
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/**
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* @brief Oversampling rate options (shared by pressure and temperature)
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*/
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typedef enum {
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SPA06_003_OVERSAMPLE_1 = 0x00, ///< Single
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SPA06_003_OVERSAMPLE_2 = 0x01, ///< 2 times
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SPA06_003_OVERSAMPLE_4 = 0x02, ///< 4 times
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SPA06_003_OVERSAMPLE_8 = 0x03, ///< 8 times
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SPA06_003_OVERSAMPLE_16 = 0x04, ///< 16 times
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SPA06_003_OVERSAMPLE_32 = 0x05, ///< 32 times
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SPA06_003_OVERSAMPLE_64 = 0x06, ///< 64 times
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SPA06_003_OVERSAMPLE_128 = 0x07 ///< 128 times
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} spa06_003_oversample_t;
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/**
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* @brief Measurement mode options
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*/
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typedef enum {
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SPA06_003_MEAS_IDLE = 0x00, ///< Idle / Stop background measurement
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SPA06_003_MEAS_PRESSURE = 0x01, ///< Pressure measurement (Command Mode)
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SPA06_003_MEAS_TEMPERATURE =
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0x02, ///< Temperature measurement (Command Mode)
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SPA06_003_MEAS_CONTINUOUS_PRESSURE =
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0x05, ///< Continuous pressure measurement (Background Mode)
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SPA06_003_MEAS_CONTINUOUS_TEMPERATURE =
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0x06, ///< Continuous temperature measurement (Background Mode)
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SPA06_003_MEAS_CONTINUOUS_BOTH =
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0x07 ///< Continuous pressure and temperature measurement (Background
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///< Mode)
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} spa06_003_meas_mode_t;
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/**
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* @brief Interrupt polarity options
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*/
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typedef enum {
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SPA06_003_INT_ACTIVE_LOW = 0x00, ///< Interrupt active low
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SPA06_003_INT_ACTIVE_HIGH = 0x01 ///< Interrupt active high
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} spa06_003_int_polarity_t;
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/*!
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* @brief Class that stores state and functions for interacting with SPA06_003
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*/
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class Adafruit_SPA06_003 {
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public:
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Adafruit_SPA06_003();
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~Adafruit_SPA06_003();
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bool begin(uint8_t i2c_addr = SPA06_003_DEFAULT_ADDR, TwoWire *wire = &Wire);
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uint32_t getPressureData();
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uint32_t getTemperatureData();
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spa06_003_rate_t getPressureMeasureRate();
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bool setPressureMeasureRate(spa06_003_rate_t rate);
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spa06_003_rate_t getTemperatureMeasureRate();
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bool setTemperatureMeasureRate(spa06_003_rate_t rate);
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spa06_003_oversample_t getPressureOversampling();
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bool setPressureOversampling(spa06_003_oversample_t prc);
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spa06_003_oversample_t getTemperatureOversampling();
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bool setTemperatureOversampling(spa06_003_oversample_t prc);
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bool isCoeffReady();
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bool isSensorReady();
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bool isTempDataReady();
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bool isPresDataReady();
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spa06_003_meas_mode_t getMeasurementMode();
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bool setMeasurementMode(spa06_003_meas_mode_t mode);
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bool setInterruptPolarity(spa06_003_int_polarity_t polarity);
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bool setInterruptSource(bool fifo, bool temp_ready, bool pres_ready);
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bool setTempShift(bool enable);
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bool setPresShift(bool enable);
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bool enableFIFO(bool enable);
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bool isFIFOEnabled();
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bool isFIFOEmpty();
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bool isFIFOFull();
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uint8_t getStatusFlags();
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bool flushFIFO();
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bool reset();
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float readTemperature();
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float readPressure();
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Adafruit_Sensor *getTemperatureSensor();
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Adafruit_Sensor *getPressureSensor();
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private:
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Adafruit_I2CDevice *i2c_dev;
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// Adafruit Sensor objects
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Adafruit_SPA06_003_Temp *temp_sensor = NULL;
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Adafruit_SPA06_003_Pressure *pressure_sensor = NULL;
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// Calibration coefficients
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int16_t c0, c1;
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int32_t c00, c10; // 20-bit 2's complement
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int16_t c01, c11, c20, c21, c30; // 16-bit 2's complement
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int16_t c31; // 12-bit 2's complement
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int16_t c40; // 12-bit 2's complement
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bool readCoefficients();
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float getScalingFactor(spa06_003_oversample_t oversample);
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};
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/*!
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* @brief Adafruit Unified Sensor interface for temperature component of
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* SPA06_003
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*/
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class Adafruit_SPA06_003_Temp : public Adafruit_Sensor {
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public:
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/** @brief Create an Adafruit_Sensor compatible object for the temp sensor
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@param parent A pointer to the SPA06_003 class */
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Adafruit_SPA06_003_Temp(Adafruit_SPA06_003 *parent) {
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_theSPA06003 = parent;
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}
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bool getEvent(sensors_event_t *);
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void getSensor(sensor_t *);
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private:
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int _sensorID = 60003;
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Adafruit_SPA06_003 *_theSPA06003 = NULL;
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};
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/*!
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* @brief Adafruit Unified Sensor interface for pressure component of SPA06_003
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*/
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class Adafruit_SPA06_003_Pressure : public Adafruit_Sensor {
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public:
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/** @brief Create an Adafruit_Sensor compatible object for the pressure sensor
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@param parent A pointer to the SPA06_003 class */
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Adafruit_SPA06_003_Pressure(Adafruit_SPA06_003 *parent) {
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_theSPA06003 = parent;
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}
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bool getEvent(sensors_event_t *);
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void getSensor(sensor_t *);
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private:
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int _sensorID = 60003;
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Adafruit_SPA06_003 *_theSPA06003 = NULL;
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};
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#endif |