66 lines
3.3 KiB
C++
66 lines
3.3 KiB
C++
#pragma once
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#include "esphome/core/component.h"
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#include "esphome/components/sensor/sensor.h"
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#include "esphome/components/i2c/i2c.h"
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namespace esphome {
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namespace dps310 {
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static const uint8_t DPS310_REG_PRS_B2 = 0x00; // Highest byte of pressure data
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static const uint8_t DPS310_REG_TMP_B2 = 0x03; // Highest byte of temperature data
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static const uint8_t DPS310_REG_PRS_CFG = 0x06; // Pressure configuration
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static const uint8_t DPS310_REG_TMP_CFG = 0x07; // Temperature configuration
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static const uint8_t DPS310_REG_MEAS_CFG = 0x08; // Sensor configuration
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static const uint8_t DPS310_REG_CFG = 0x09; // Interrupt/FIFO configuration
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static const uint8_t DPS310_REG_RESET = 0x0C; // Soft reset
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static const uint8_t DPS310_REG_PROD_REV_ID = 0x0D; // Register that contains the part ID
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static const uint8_t DPS310_REG_COEF = 0x10; // Top of calibration coefficient data space
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static const uint8_t DPS310_REG_TMP_COEF_SRC = 0x28; // Temperature calibration src
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static const uint8_t DPS310_BIT_PRS_RDY = 0x10; // Pressure measurement is ready
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static const uint8_t DPS310_BIT_TMP_RDY = 0x20; // Temperature measurement is ready
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static const uint8_t DPS310_BIT_SENSOR_RDY = 0x40; // Sensor initialization complete when bit is set
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static const uint8_t DPS310_BIT_COEF_RDY = 0x80; // Coefficients are available when bit is set
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static const uint8_t DPS310_BIT_TMP_COEF_SRC = 0x80; // Temperature measurement source (0 = ASIC, 1 = MEMS element)
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static const uint8_t DPS310_BIT_REQ_PRES = 0x01; // Set this bit to request pressure reading
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static const uint8_t DPS310_BIT_REQ_TEMP = 0x02; // Set this bit to request temperature reading
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static const uint8_t DPS310_CMD_RESET = 0x89; // What to write to reset the device
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static const uint8_t DPS310_VAL_PRS_CFG = 0x01; // Value written to DPS310_REG_PRS_CFG at startup
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static const uint8_t DPS310_VAL_TMP_CFG = 0x01; // Value written to DPS310_REG_TMP_CFG at startup
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static const uint8_t DPS310_VAL_REG_CFG = 0x00; // Value written to DPS310_REG_CFG at startup
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static const uint8_t DPS310_INIT_TIMEOUT = 20; // How long to wait for DPS310 start-up to complete
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static const uint8_t DPS310_NUM_COEF_REGS = 18; // Number of coefficients we need to read from the device
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static const int32_t DPS310_SCALE_FACTOR = 1572864; // Measurement compensation scale factor
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class DPS310Component : public PollingComponent, public i2c::I2CDevice {
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public:
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void setup() override;
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void dump_config() override;
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float get_setup_priority() const override;
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void update() override;
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void set_temperature_sensor(sensor::Sensor *temperature_sensor) { temperature_sensor_ = temperature_sensor; }
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void set_pressure_sensor(sensor::Sensor *pressure_sensor) { pressure_sensor_ = pressure_sensor; }
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protected:
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void read_();
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void read_pressure_();
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void read_temperature_();
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void calculate_values_(int32_t raw_temperature, int32_t raw_pressure);
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static int32_t twos_complement(int32_t val, uint8_t bits);
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sensor::Sensor *temperature_sensor_{nullptr};
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sensor::Sensor *pressure_sensor_{nullptr};
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int32_t raw_pressure_, raw_temperature_, c00_, c10_;
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int16_t c0_, c1_, c01_, c11_, c20_, c21_, c30_;
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uint8_t prod_rev_id_;
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bool got_pres_, got_temp_, update_in_progress_;
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};
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} // namespace dps310
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} // namespace esphome
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