ESPHome  2024.10.2
bmp3xx_base.h
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1 /*
2  based on BMP388_DEV by Martin Lindupp
3  under MIT License (MIT)
4  Copyright (C) Martin Lindupp 2020
5  http://github.com/MartinL1/BMP388_DEV
6 */
7 
8 #pragma once
9 
10 #include "esphome/core/component.h"
12 
13 namespace esphome {
14 namespace bmp3xx_base {
15 
16 static const uint8_t BMP388_ID = 0x50; // The BMP388 device ID
17 static const uint8_t BMP390_ID = 0x60; // The BMP390 device ID
18 static const uint8_t RESET_CODE = 0xB6; // The BMP388 reset code
19 
21 enum {
22  BMP388_CHIP_ID = 0x00, // Chip ID register sub-address
23  BMP388_ERR_REG = 0x02, // Error register sub-address
24  BMP388_STATUS = 0x03, // Status register sub-address
25  BMP388_DATA_0 = 0x04, // Pressure eXtended Least Significant Byte (XLSB) register sub-address
26  BMP388_DATA_1 = 0x05, // Pressure Least Significant Byte (LSB) register sub-address
27  BMP388_DATA_2 = 0x06, // Pressure Most Significant Byte (MSB) register sub-address
28  BMP388_DATA_3 = 0x07, // Temperature eXtended Least Significant Byte (XLSB) register sub-address
29  BMP388_DATA_4 = 0x08, // Temperature Least Significant Byte (LSB) register sub-address
30  BMP388_DATA_5 = 0x09, // Temperature Most Significant Byte (MSB) register sub-address
31  BMP388_SENSORTIME_0 = 0x0C, // Sensor time register 0 sub-address
32  BMP388_SENSORTIME_1 = 0x0D, // Sensor time register 1 sub-address
33  BMP388_SENSORTIME_2 = 0x0E, // Sensor time register 2 sub-address
34  BMP388_EVENT = 0x10, // Event register sub-address
35  BMP388_INT_STATUS = 0x11, // Interrupt Status register sub-address
36  BMP388_INT_CTRL = 0x19, // Interrupt Control register sub-address
37  BMP388_IF_CONFIG = 0x1A, // Interface Configuration register sub-address
38  BMP388_PWR_CTRL = 0x1B, // Power Control register sub-address
39  BMP388_OSR = 0x1C, // Oversampling register sub-address
40  BMP388_ODR = 0x1D, // Output Data Rate register sub-address
41  BMP388_CONFIG = 0x1F, // Configuration register sub-address
42  BMP388_TRIM_PARAMS = 0x31, // Trim parameter registers' base sub-address
43  BMP388_CMD = 0x7E // Command register sub-address
44 };
45 
47 enum OperationMode { SLEEP_MODE = 0x00, FORCED_MODE = 0x01, NORMAL_MODE = 0x03 };
48 
57 };
58 
60 enum IIRFilter {
62  IIR_FILTER_2 = 0x01,
63  IIR_FILTER_4 = 0x02,
64  IIR_FILTER_8 = 0x03,
65  IIR_FILTER_16 = 0x04,
66  IIR_FILTER_32 = 0x05,
67  IIR_FILTER_64 = 0x06,
69 };
70 
73  public:
74  void setup() override;
75  void dump_config() override;
76  float get_setup_priority() const override;
77  void update() override;
78 
79  void set_temperature_sensor(sensor::Sensor *temperature_sensor) { temperature_sensor_ = temperature_sensor; }
80  void set_pressure_sensor(sensor::Sensor *pressure_sensor) { pressure_sensor_ = pressure_sensor; }
81 
83  void set_temperature_oversampling_config(Oversampling temperature_oversampling) {
84  this->temperature_oversampling_ = temperature_oversampling;
85  }
87  void set_pressure_oversampling_config(Oversampling pressure_oversampling) {
88  this->pressure_oversampling_ = pressure_oversampling;
89  }
92 
94  uint8_t reset();
100  bool stop_conversion();
102  bool set_pressure_oversampling(Oversampling pressure_oversampling);
104  bool set_temperature_oversampling(Oversampling temperature_oversampling);
108  bool get_temperature(float &temperature);
110  bool get_pressure(float &pressure);
112  bool get_measurements(float &temperature, float &pressure);
114  bool get_measurement();
118  bool set_oversampling_register(Oversampling pressure_oversampling, Oversampling temperature_oversampling);
120  bool data_ready();
121 
122  protected:
129  enum ErrorCode {
130  NONE = 0,
135  } error_code_{NONE};
137  struct { // The BMP388 compensation trim parameters (coefficients)
138  uint16_t param_T1;
139  uint16_t param_T2;
140  int8_t param_T3;
141  int16_t param_P1;
142  int16_t param_P2;
143  int8_t param_P3;
144  int8_t param_P4;
145  uint16_t param_P5;
146  uint16_t param_P6;
147  int8_t param_P7;
148  int8_t param_P8;
149  int16_t param_P9;
150  int8_t param_P10;
151  int8_t param_P11;
152  } __attribute__((packed)) compensation_params_;
153 
154  struct FloatParams { // The BMP388 float point compensation trim parameters
155  float param_T1;
156  float param_T2;
157  float param_T3;
158  float param_P1;
159  float param_P2;
160  float param_P3;
161  float param_P4;
162  float param_P5;
163  float param_P6;
164  float param_P7;
165  float param_P8;
166  float param_P9;
167  float param_P10;
168  float param_P11;
170 
171  union { // Copy of the BMP388's chip id register
172  struct {
173  uint8_t chip_id_nvm : 4;
174  uint8_t chip_id_fixed : 4;
175  } bit;
176  uint8_t reg;
177  } chip_id_ = {.reg = 0};
178 
179  union { // Copy of the BMP388's event register
180  struct {
181  uint8_t por_detected : 1;
182  } bit;
183  uint8_t reg;
184  } event_ = {.reg = 0};
185 
186  union { // Copy of the BMP388's interrupt status register
187  struct {
188  uint8_t fwm_int : 1;
189  uint8_t ffull_int : 1;
190  uint8_t : 1;
191  uint8_t drdy : 1;
192  } bit;
193  uint8_t reg;
194  } int_status_ = {.reg = 0};
195 
196  union { // Copy of the BMP388's power control register
197  struct {
198  uint8_t press_en : 1;
199  uint8_t temp_en : 1;
200  uint8_t : 2;
201  uint8_t mode : 2;
202  } bit;
203  uint8_t reg;
204  } pwr_ctrl_ = {.reg = 0};
205 
206  union { // Copy of the BMP388's oversampling register
207  struct {
208  uint8_t osr_p : 3;
209  uint8_t osr_t : 3;
210  } bit;
211  uint8_t reg;
212  } osr_ = {.reg = 0};
213 
214  union { // Copy of the BMP388's output data rate register
215  struct {
216  uint8_t odr_sel : 5;
217  } bit;
218  uint8_t reg;
219  } odr_ = {.reg = 0};
220 
221  union { // Copy of the BMP388's configuration register
222  struct {
223  uint8_t : 1;
224  uint8_t iir_filter : 3;
225  } bit;
226  uint8_t reg;
227  } config_ = {.reg = 0};
228 
229  // Bosch temperature compensation function
230  float bmp388_compensate_temperature_(float uncomp_temp);
231  // Bosch pressure compensation function
232  float bmp388_compensate_pressure_(float uncomp_press, float t_lin);
233 
234  // interface specific functions
235  virtual bool read_byte(uint8_t a_register, uint8_t *data) = 0;
236  virtual bool write_byte(uint8_t a_register, uint8_t data) = 0;
237  virtual bool read_bytes(uint8_t a_register, uint8_t *data, size_t len) = 0;
238  virtual bool write_bytes(uint8_t a_register, uint8_t *data, size_t len) = 0;
239 };
240 
241 } // namespace bmp3xx_base
242 } // namespace esphome
float get_setup_priority() const override
struct esphome::bmp3xx_base::BMP3XXComponent::@25::@32 bit
union esphome::bmp3xx_base::BMP3XXComponent::@31 config_
uint8_t pressure
Definition: tt21100.cpp:19
Oversampling
Oversampling bit fields in the control and measurement register.
Definition: bmp3xx_base.h:50
bool set_mode(OperationMode mode)
Set the barometer mode.
void set_pressure_sensor(sensor::Sensor *pressure_sensor)
Definition: bmp3xx_base.h:80
union esphome::bmp3xx_base::BMP3XXComponent::@27 int_status_
virtual bool read_bytes(uint8_t a_register, uint8_t *data, size_t len)=0
union esphome::bmp3xx_base::BMP3XXComponent::@30 odr_
This class simplifies creating components that periodically check a state.
Definition: component.h:283
union esphome::bmp3xx_base::BMP3XXComponent::@25 chip_id_
bool data_ready()
Checks if a measurement is ready.
This class implements support for the BMP3XX Temperature+Pressure sensor.
Definition: bmp3xx_base.h:72
void set_iir_filter_config(IIRFilter iir_filter)
Set the IIR Filter used to increase accuracy, defaults to no IIR Filter.
Definition: bmp3xx_base.h:91
bool start_normal_conversion()
Start continuous measurement in NORMAL_MODE.
bool start_forced_conversion()
Start a one shot measurement in FORCED_MODE.
float bmp388_compensate_temperature_(float uncomp_temp)
bool set_iir_filter(IIRFilter iir_filter)
Set the IIR filter setting: OFF, 2, 3, 8, 16, 32.
struct esphome::bmp3xx_base::BMP3XXComponent::@24 __attribute__((packed)) compensation_params_
bool get_measurements(float &temperature, float &pressure)
Get a temperature and pressure measurement.
bool get_pressure(float &pressure)
Get a pressure measurement.
virtual bool write_bytes(uint8_t a_register, uint8_t *data, size_t len)=0
bool stop_conversion()
Stop the conversion and return to SLEEP_MODE.
uint16_t temperature
Definition: sun_gtil2.cpp:26
bool get_measurement()
Get a temperature and pressure measurement.
bool set_temperature_oversampling(Oversampling temperature_oversampling)
Set the temperature oversampling: OFF, X1, X2, X4, X8, X16, X32.
void set_temperature_oversampling_config(Oversampling temperature_oversampling)
Set the oversampling value for the temperature sensor. Default is 16x.
Definition: bmp3xx_base.h:83
bool get_temperature(float &temperature)
Get a temperature measurement.
enum esphome::bmp3xx_base::BMP3XXComponent::ErrorCode NONE
uint8_t reset()
Soft reset the sensor.
union esphome::bmp3xx_base::BMP3XXComponent::@28 pwr_ctrl_
union esphome::bmp3xx_base::BMP3XXComponent::@29 osr_
void set_temperature_sensor(sensor::Sensor *temperature_sensor)
Definition: bmp3xx_base.h:79
IIRFilter
Infinite Impulse Response (IIR) filter bit field in the configuration register.
Definition: bmp3xx_base.h:60
bool set_pressure_oversampling(Oversampling pressure_oversampling)
Set the pressure oversampling: OFF, X1, X2, X4, X8, X16, X32.
std::string size_t len
Definition: helpers.h:292
virtual bool write_byte(uint8_t a_register, uint8_t data)=0
void set_pressure_oversampling_config(Oversampling pressure_oversampling)
Set the oversampling value for the pressure sensor. Default is 16x.
Definition: bmp3xx_base.h:87
Implementation of SPI Controller mode.
Definition: a01nyub.cpp:7
OperationMode
Device mode bitfield in the control and measurement register.
Definition: bmp3xx_base.h:47
Base-class for all sensors.
Definition: sensor.h:57
float bmp388_compensate_pressure_(float uncomp_press, float t_lin)
bool set_oversampling_register(Oversampling pressure_oversampling, Oversampling temperature_oversampling)
Set the BMP388 oversampling register.
struct esphome::bmp3xx_base::BMP3XXComponent::FloatParams compensation_float_params_
union esphome::bmp3xx_base::BMP3XXComponent::@26 event_
virtual bool read_byte(uint8_t a_register, uint8_t *data)=0