Add support for BMP388 / BMP 390 pressure and temperature sensor (#2716)

CODEOWNERS

@@ -31,6 +31,7 @@ esphome/components/binary_sensor/* @esphome/core
 esphome/components/bl0940/* @tobias-
 esphome/components/ble_client/* @buxtronix
 esphome/components/bme680_bsec/* @trvrnrth
+esphome/components/bmp3xx/* @martgras
 esphome/components/button/* @esphome/core
 esphome/components/canbus/* @danielschramm @mvturnho
 esphome/components/cap1188/* @MrEditor97

esphome/components/bmp3xx/bmp3xx.cpp

@@ -0,0 +1,388 @@
+/*
+  based on BMP388_DEV by Martin Lindupp
+  under MIT License (MIT)
+  Copyright (C) Martin Lindupp 2020
+  http://github.com/MartinL1/BMP388_DEV
+*/
+
+#include "bmp3xx.h"
+#include "esphome/core/log.h"
+#include "esphome/core/hal.h"
+
+namespace esphome {
+namespace bmp3xx {
+
+static const char *const TAG = "bmp3xx.sensor";
+
+static const LogString *chip_type_to_str(uint8_t chip_type) {
+  switch (chip_type) {
+    case BMP388_ID:
+      return LOG_STR("BMP 388");
+    case BMP390_ID:
+      return LOG_STR("BMP 390");
+    default:
+      return LOG_STR("Unknown Chip Type");
+  }
+}
+
+static const LogString *oversampling_to_str(Oversampling oversampling) {
+  switch (oversampling) {
+    case Oversampling::OVERSAMPLING_NONE:
+      return LOG_STR("None");
+    case Oversampling::OVERSAMPLING_X2:
+      return LOG_STR("2x");
+    case Oversampling::OVERSAMPLING_X4:
+      return LOG_STR("4x");
+    case Oversampling::OVERSAMPLING_X8:
+      return LOG_STR("8x");
+    case Oversampling::OVERSAMPLING_X16:
+      return LOG_STR("16x");
+    case Oversampling::OVERSAMPLING_X32:
+      return LOG_STR("32x");
+    default:
+      return LOG_STR("");
+  }
+}
+
+static const LogString *iir_filter_to_str(IIRFilter filter) {
+  switch (filter) {
+    case IIRFilter::IIR_FILTER_OFF:
+      return LOG_STR("OFF");
+    case IIRFilter::IIR_FILTER_2:
+      return LOG_STR("2x");
+    case IIRFilter::IIR_FILTER_4:
+      return LOG_STR("4x");
+    case IIRFilter::IIR_FILTER_8:
+      return LOG_STR("8x");
+    case IIRFilter::IIR_FILTER_16:
+      return LOG_STR("16x");
+    case IIRFilter::IIR_FILTER_32:
+      return LOG_STR("32x");
+    case IIRFilter::IIR_FILTER_64:
+      return LOG_STR("64x");
+    case IIRFilter::IIR_FILTER_128:
+      return LOG_STR("128x");
+    default:
+      return LOG_STR("");
+  }
+}
+
+void BMP3XXComponent::setup() {
+  this->error_code_ = NONE;
+  ESP_LOGCONFIG(TAG, "Setting up BMP3XX...");
+  // Call the Device base class "initialise" function
+  if (!reset()) {
+    ESP_LOGE(TAG, "Failed to reset BMP3XX...");
+    this->error_code_ = ERROR_SENSOR_RESET;
+    this->mark_failed();
+  }
+
+  if (!read_byte(BMP388_CHIP_ID, &this->chip_id_.reg)) {
+    ESP_LOGE(TAG, "Can't read chip id");
+    this->error_code_ = ERROR_COMMUNICATION_FAILED;
+    this->mark_failed();
+    return;
+  }
+  ESP_LOGCONFIG(TAG, "Chip %s Id 0x%X", LOG_STR_ARG(chip_type_to_str(this->chip_id_.reg)), this->chip_id_.reg);
+
+  if (chip_id_.reg != BMP388_ID && chip_id_.reg != BMP390_ID) {
+    ESP_LOGE(TAG, "Unknown chip id - is this really a BMP388 or BMP390?");
+    this->error_code_ = ERROR_WRONG_CHIP_ID;
+    this->mark_failed();
+    return;
+  }
+  // set sensor in sleep mode
+  stop_conversion();
+  // Read the calibration parameters into the params structure
+  if (!read_bytes(BMP388_TRIM_PARAMS, (uint8_t *) &compensation_params_, sizeof(compensation_params_))) {
+    ESP_LOGE(TAG, "Can't read calibration data");
+    this->error_code_ = ERROR_COMMUNICATION_FAILED;
+    this->mark_failed();
+    return;
+  }
+  compensation_float_params_.param_T1 =
+      (float) compensation_params_.param_T1 / powf(2.0f, -8.0f);  // Calculate the floating point trim parameters
+  compensation_float_params_.param_T2 = (float) compensation_params_.param_T2 / powf(2.0f, 30.0f);
+  compensation_float_params_.param_T3 = (float) compensation_params_.param_T3 / powf(2.0f, 48.0f);
+  compensation_float_params_.param_P1 = ((float) compensation_params_.param_P1 - powf(2.0f, 14.0f)) / powf(2.0f, 20.0f);
+  compensation_float_params_.param_P2 = ((float) compensation_params_.param_P2 - powf(2.0f, 14.0f)) / powf(2.0f, 29.0f);
+  compensation_float_params_.param_P3 = (float) compensation_params_.param_P3 / powf(2.0f, 32.0f);
+  compensation_float_params_.param_P4 = (float) compensation_params_.param_P4 / powf(2.0f, 37.0f);
+  compensation_float_params_.param_P5 = (float) compensation_params_.param_P5 / powf(2.0f, -3.0f);
+  compensation_float_params_.param_P6 = (float) compensation_params_.param_P6 / powf(2.0f, 6.0f);
+  compensation_float_params_.param_P7 = (float) compensation_params_.param_P7 / powf(2.0f, 8.0f);
+  compensation_float_params_.param_P8 = (float) compensation_params_.param_P8 / powf(2.0f, 15.0f);
+  compensation_float_params_.param_P9 = (float) compensation_params_.param_P9 / powf(2.0f, 48.0f);
+  compensation_float_params_.param_P10 = (float) compensation_params_.param_P10 / powf(2.0f, 48.0f);
+  compensation_float_params_.param_P11 = (float) compensation_params_.param_P11 / powf(2.0f, 65.0f);
+
+  // Initialise the BMP388 IIR filter register
+  if (!set_iir_filter(this->iir_filter_)) {
+    ESP_LOGE(TAG, "Failed to set IIR filter");
+    this->error_code_ = ERROR_COMMUNICATION_FAILED;
+    this->mark_failed();
+    return;
+  }
+
+  // Set power control registers
+  pwr_ctrl_.bit.press_en = 1;
+  pwr_ctrl_.bit.temp_en = 1;
+  // Disable pressure if no sensor defined
+  // keep temperature enabled since it's needed for compensation
+  if (this->pressure_sensor_ == nullptr) {
+    pwr_ctrl_.bit.press_en = 0;
+    this->pressure_oversampling_ = OVERSAMPLING_NONE;
+  }
+  // just disable oeversampling for temp if not used
+  if (this->temperature_sensor_ == nullptr) {
+    this->temperature_oversampling_ = OVERSAMPLING_NONE;
+  }
+  // Initialise the BMP388 oversampling register
+  if (!set_oversampling_register(this->pressure_oversampling_, this->temperature_oversampling_)) {
+    ESP_LOGE(TAG, "Failed to set oversampling register");
+    this->error_code_ = ERROR_COMMUNICATION_FAILED;
+    this->mark_failed();
+    return;
+  }
+}
+
+void BMP3XXComponent::dump_config() {
+  ESP_LOGCONFIG(TAG, "BMP3XX:");
+  ESP_LOGCONFIG(TAG, "  Type: %s (0x%X)", LOG_STR_ARG(chip_type_to_str(this->chip_id_.reg)), this->chip_id_.reg);
+  LOG_I2C_DEVICE(this);
+  switch (this->error_code_) {
+    case NONE:
+      break;
+    case ERROR_COMMUNICATION_FAILED:
+      ESP_LOGE(TAG, "Communication with BMP3XX failed!");
+      break;
+    case ERROR_WRONG_CHIP_ID:
+      ESP_LOGE(
+          TAG,
+          "BMP3XX has wrong chip ID (reported id: 0x%X) - please check if you are really using a BMP 388 or BMP 390",
+          this->chip_id_.reg);
+      break;
+    case ERROR_SENSOR_RESET:
+      ESP_LOGE(TAG, "BMP3XX failed to reset");
+      break;
+    default:
+      ESP_LOGE(TAG, "BMP3XX error code %d", (int) this->error_code_);
+      break;
+  }
+  ESP_LOGCONFIG(TAG, "  IIR Filter: %s", LOG_STR_ARG(iir_filter_to_str(this->iir_filter_)));
+  LOG_UPDATE_INTERVAL(this);
+  if (this->temperature_sensor_) {
+    LOG_SENSOR("  ", "Temperature", this->temperature_sensor_);
+    ESP_LOGCONFIG(TAG, "    Oversampling: %s", LOG_STR_ARG(oversampling_to_str(this->temperature_oversampling_)));
+  }
+  if (this->pressure_sensor_) {
+    LOG_SENSOR("  ", "Pressure", this->pressure_sensor_);
+    ESP_LOGCONFIG(TAG, "    Oversampling: %s", LOG_STR_ARG(oversampling_to_str(this->pressure_oversampling_)));
+  }
+}
+float BMP3XXComponent::get_setup_priority() const { return setup_priority::DATA; }
+
+inline uint8_t oversampling_to_time(Oversampling over_sampling) { return (1 << uint8_t(over_sampling)); }
+
+void BMP3XXComponent::update() {
+  // Enable sensor
+  ESP_LOGV(TAG, "Sending conversion request...");
+  float meas_time = 1.0f;
+  // Ref: https://www.bosch-sensortec.com/media/boschsensortec/downloads/datasheets/bst-bmp390-ds002.pdf 3.9.2
+  meas_time += 2.02f * oversampling_to_time(this->temperature_oversampling_) + 0.163f;
+  meas_time += 2.02f * oversampling_to_time(this->pressure_oversampling_) + 0.392f;
+  meas_time += 0.234f;
+  if (!set_mode(FORCED_MODE)) {
+    ESP_LOGE(TAG, "Failed start forced mode");
+    this->mark_failed();
+    return;
+  }
+
+  ESP_LOGVV(TAG, "measurement time %d", uint32_t(ceilf(meas_time)));
+  this->set_timeout("data", uint32_t(ceilf(meas_time)), [this]() {
+    float temperature = 0.0f;
+    float pressure = 0.0f;
+    if (this->pressure_sensor_ != nullptr) {
+      if (!get_measurements(temperature, pressure)) {
+        ESP_LOGW(TAG, "Failed to read pressure and temperature - skipping update");
+        this->status_set_warning();
+        return;
+      }
+      ESP_LOGD(TAG, "Got temperature=%.1f°C pressure=%.1fhPa", temperature, pressure);
+    } else {
+      if (!get_temperature(temperature)) {
+        ESP_LOGW(TAG, "Failed to read temperature - skipping update");
+        this->status_set_warning();
+        return;
+      }
+      ESP_LOGD(TAG, "Got temperature=%.1f°C", temperature);
+    }
+
+    if (this->temperature_sensor_ != nullptr)
+      this->temperature_sensor_->publish_state(temperature);
+    if (this->pressure_sensor_ != nullptr)
+      this->pressure_sensor_->publish_state(pressure);
+    this->status_clear_warning();
+    set_mode(SLEEP_MODE);
+  });
+}
+
+// Reset the BMP3XX
+uint8_t BMP3XXComponent::reset() {
+  write_byte(BMP388_CMD, RESET_CODE);  // Write the reset code to the command register
+  // Wait for 10ms
+  delay(10);
+  this->read_byte(BMP388_EVENT, &event_.reg);  // Read the BMP388's event register
+  return event_.bit.por_detected;              // Return if device reset is complete
+}
+
+// Start a one shot measurement in FORCED_MODE
+bool BMP3XXComponent::start_forced_conversion() {
+  // Only set FORCED_MODE if we're already in SLEEP_MODE
+  if (pwr_ctrl_.bit.mode == SLEEP_MODE) {
+    return set_mode(FORCED_MODE);
+  }
+  return true;
+}
+
+// Stop the conversion and return to SLEEP_MODE
+bool BMP3XXComponent::stop_conversion() { return set_mode(SLEEP_MODE); }
+
+// Set the pressure oversampling rate
+bool BMP3XXComponent::set_pressure_oversampling(Oversampling oversampling) {
+  osr_.bit.osr_p = oversampling;
+  return this->write_byte(BMP388_OSR, osr_.reg);
+}
+
+// Set the temperature oversampling rate
+bool BMP3XXComponent::set_temperature_oversampling(Oversampling oversampling) {
+  osr_.bit.osr_t = oversampling;
+  return this->write_byte(BMP388_OSR, osr_.reg);
+}
+
+// Set the IIR filter setting
+bool BMP3XXComponent::set_iir_filter(IIRFilter iir_filter) {
+  config_.bit.iir_filter = iir_filter;
+  return this->write_byte(BMP388_CONFIG, config_.reg);
+}
+
+// Get temperature
+bool BMP3XXComponent::get_temperature(float &temperature) {
+  // Check if a measurement is ready
+  if (!data_ready()) {
+    return false;
+  }
+  uint8_t data[3];
+  // Read the temperature
+  if (!this->read_bytes(BMP388_DATA_3, &data[0], 3)) {
+    ESP_LOGE(TAG, "Failed to read temperature");
+    return false;
+  }
+  // Copy the temperature data into the adc variables
+  int32_t adc_temp = (int32_t) data[2] << 16 | (int32_t) data[1] << 8 | (int32_t) data[0];
+  // Temperature compensation (function from BMP388 datasheet)
+  temperature = bmp388_compensate_temperature_((float) adc_temp);
+  return true;
+}
+
+// Get the pressure
+bool BMP3XXComponent::get_pressure(float &pressure) {
+  float temperature;
+  return get_measurements(temperature, pressure);
+}
+
+// Get temperature and pressure
+bool BMP3XXComponent::get_measurements(float &temperature, float &pressure) {
+  // Check if a measurement is ready
+  if (!data_ready()) {
+    ESP_LOGD(TAG, "BMP3XX Get measurement - data not ready skipping update");
+    return false;
+  }
+
+  uint8_t data[6];
+  // Read the temperature and pressure data
+  if (!this->read_bytes(BMP388_DATA_0, &data[0], 6)) {
+    ESP_LOGE(TAG, "Failed to read measurements");
+    return false;
+  }
+  // Copy the temperature and pressure data into the adc variables
+  int32_t adc_pres = (int32_t) data[2] << 16 | (int32_t) data[1] << 8 | (int32_t) data[0];
+  int32_t adc_temp = (int32_t) data[5] << 16 | (int32_t) data[4] << 8 | (int32_t) data[3];
+
+  // Temperature compensation (function from BMP388 datasheet)
+  temperature = bmp388_compensate_temperature_((float) adc_temp);
+  // Pressure compensation (function from BMP388 datasheet)
+  pressure = bmp388_compensate_pressure_((float) adc_pres, temperature);
+  // Calculate the pressure in millibar/hPa
+  pressure /= 100.0f;
+  return true;
+}
+
+// Set the BMP388's mode in the power control register
+bool BMP3XXComponent::set_mode(OperationMode mode) {
+  pwr_ctrl_.bit.mode = mode;
+  return this->write_byte(BMP388_PWR_CTRL, pwr_ctrl_.reg);
+}
+
+// Set the BMP388 oversampling register
+bool BMP3XXComponent::set_oversampling_register(Oversampling pressure_oversampling,
+                                                Oversampling temperature_oversampling) {
+  osr_.reg = temperature_oversampling << 3 | pressure_oversampling;
+  return this->write_byte(BMP388_OSR, osr_.reg);
+}
+
+// Check if measurement data is ready
+bool BMP3XXComponent::data_ready() {
+  // If we're in SLEEP_MODE return immediately
+  if (pwr_ctrl_.bit.mode == SLEEP_MODE) {
+    ESP_LOGD(TAG, "Not ready - sensor is in sleep mode");
+    return false;
+  }
+  // Read the interrupt status register
+  uint8_t status;
+  if (!this->read_byte(BMP388_INT_STATUS, &status)) {
+    ESP_LOGE(TAG, "Failed to read status register");
+    return false;
+  }
+  int_status_.reg = status;
+  ESP_LOGVV(TAG, "data ready status %d", status);
+  // If we're in FORCED_MODE switch back to SLEEP_MODE
+  if (int_status_.bit.drdy) {
+    if (pwr_ctrl_.bit.mode == FORCED_MODE) {
+      pwr_ctrl_.bit.mode = SLEEP_MODE;
+    }
+    return true;  // The measurement is ready
+  }
+  return false;  // The measurement is still pending
+}
+
+////////////////////////////////////////////////////////////////////////////////
+// Bosch BMP3XXComponent (Private) Member Functions
+////////////////////////////////////////////////////////////////////////////////
+
+float BMP3XXComponent::bmp388_compensate_temperature_(float uncomp_temp) {
+  float partial_data1 = uncomp_temp - compensation_float_params_.param_T1;
+  float partial_data2 = partial_data1 * compensation_float_params_.param_T2;
+  return partial_data2 + partial_data1 * partial_data1 * compensation_float_params_.param_T3;
+}
+
+float BMP3XXComponent::bmp388_compensate_pressure_(float uncomp_press, float t_lin) {
+  float partial_data1 = compensation_float_params_.param_P6 * t_lin;
+  float partial_data2 = compensation_float_params_.param_P7 * t_lin * t_lin;
+  float partial_data3 = compensation_float_params_.param_P8 * t_lin * t_lin * t_lin;
+  float partial_out1 = compensation_float_params_.param_P5 + partial_data1 + partial_data2 + partial_data3;
+  partial_data1 = compensation_float_params_.param_P2 * t_lin;
+  partial_data2 = compensation_float_params_.param_P3 * t_lin * t_lin;
+  partial_data3 = compensation_float_params_.param_P4 * t_lin * t_lin * t_lin;
+  float partial_out2 =
+      uncomp_press * (compensation_float_params_.param_P1 + partial_data1 + partial_data2 + partial_data3);
+  partial_data1 = uncomp_press * uncomp_press;
+  partial_data2 = compensation_float_params_.param_P9 + compensation_float_params_.param_P10 * t_lin;
+  partial_data3 = partial_data1 * partial_data2;
+  float partial_data4 =
+      partial_data3 + uncomp_press * uncomp_press * uncomp_press * compensation_float_params_.param_P11;
+  return partial_out1 + partial_out2 + partial_data4;
+}
+
+}  // namespace bmp3xx
+}  // namespace esphome

esphome/components/bmp3xx/bmp3xx.h

@@ -0,0 +1,237 @@
+/*
+  based on BMP388_DEV by Martin Lindupp
+  under MIT License (MIT)
+  Copyright (C) Martin Lindupp 2020
+  http://github.com/MartinL1/BMP388_DEV
+*/
+
+#pragma once
+
+#include "esphome/core/component.h"
+#include "esphome/components/sensor/sensor.h"
+#include "esphome/components/i2c/i2c.h"
+
+namespace esphome {
+namespace bmp3xx {
+
+static const uint8_t BMP388_ID = 0x50;   // The BMP388 device ID
+static const uint8_t BMP390_ID = 0x60;   // The BMP390 device ID
+static const uint8_t RESET_CODE = 0xB6;  // The BMP388 reset code
+
+/// BMP388_DEV Registers
+enum {
+  BMP388_CHIP_ID = 0x00,       // Chip ID register sub-address
+  BMP388_ERR_REG = 0x02,       // Error register sub-address
+  BMP388_STATUS = 0x03,        // Status register sub-address
+  BMP388_DATA_0 = 0x04,        // Pressure eXtended Least Significant Byte (XLSB) register sub-address
+  BMP388_DATA_1 = 0x05,        // Pressure Least Significant Byte (LSB) register sub-address
+  BMP388_DATA_2 = 0x06,        // Pressure Most Significant Byte (MSB) register sub-address
+  BMP388_DATA_3 = 0x07,        // Temperature eXtended Least Significant Byte (XLSB) register sub-address
+  BMP388_DATA_4 = 0x08,        // Temperature Least Significant Byte (LSB) register sub-address
+  BMP388_DATA_5 = 0x09,        // Temperature Most Significant Byte (MSB) register sub-address
+  BMP388_SENSORTIME_0 = 0x0C,  // Sensor time register 0 sub-address
+  BMP388_SENSORTIME_1 = 0x0D,  // Sensor time register 1 sub-address
+  BMP388_SENSORTIME_2 = 0x0E,  // Sensor time register 2 sub-address
+  BMP388_EVENT = 0x10,         // Event register sub-address
+  BMP388_INT_STATUS = 0x11,    // Interrupt Status register sub-address
+  BMP388_INT_CTRL = 0x19,      // Interrupt Control register sub-address
+  BMP388_IF_CONFIG = 0x1A,     // Interface Configuration register sub-address
+  BMP388_PWR_CTRL = 0x1B,      // Power Control register sub-address
+  BMP388_OSR = 0x1C,           // Oversampling register sub-address
+  BMP388_ODR = 0x1D,           // Output Data Rate register sub-address
+  BMP388_CONFIG = 0x1F,        // Configuration register sub-address
+  BMP388_TRIM_PARAMS = 0x31,   // Trim parameter registers' base sub-address
+  BMP388_CMD = 0x7E            // Command register sub-address
+};
+
+/// Device mode bitfield in the control and measurement register
+enum OperationMode { SLEEP_MODE = 0x00, FORCED_MODE = 0x01, NORMAL_MODE = 0x03 };
+
+/// Oversampling bit fields in the control and measurement register
+enum Oversampling {
+  OVERSAMPLING_NONE = 0x00,
+  OVERSAMPLING_X2 = 0x01,
+  OVERSAMPLING_X4 = 0x02,
+  OVERSAMPLING_X8 = 0x03,
+  OVERSAMPLING_X16 = 0x04,
+  OVERSAMPLING_X32 = 0x05
+};
+
+/// Infinite Impulse Response (IIR) filter bit field in the configuration register
+enum IIRFilter {
+  IIR_FILTER_OFF = 0x00,
+  IIR_FILTER_2 = 0x01,
+  IIR_FILTER_4 = 0x02,
+  IIR_FILTER_8 = 0x03,
+  IIR_FILTER_16 = 0x04,
+  IIR_FILTER_32 = 0x05,
+  IIR_FILTER_64 = 0x06,
+  IIR_FILTER_128 = 0x07
+};
+
+/// This class implements support for the BMP3XX Temperature+Pressure i2c sensor.
+class BMP3XXComponent : public PollingComponent, public i2c::I2CDevice {
+ public:
+  void setup() override;
+  void dump_config() override;
+  float get_setup_priority() const override;
+  void update() override;
+
+  void set_temperature_sensor(sensor::Sensor *temperature_sensor) { temperature_sensor_ = temperature_sensor; }
+  void set_pressure_sensor(sensor::Sensor *pressure_sensor) { pressure_sensor_ = pressure_sensor; }
+
+  /// Set the oversampling value for the temperature sensor. Default is 16x.
+  void set_temperature_oversampling_config(Oversampling temperature_oversampling) {
+    this->temperature_oversampling_ = temperature_oversampling;
+  }
+  /// Set the oversampling value for the pressure sensor. Default is 16x.
+  void set_pressure_oversampling_config(Oversampling pressure_oversampling) {
+    this->pressure_oversampling_ = pressure_oversampling;
+  }
+  /// Set the IIR Filter used to increase accuracy, defaults to no IIR Filter.
+  void set_iir_filter_config(IIRFilter iir_filter) { this->iir_filter_ = iir_filter; }
+
+  /// Soft reset the sensor
+  uint8_t reset();
+  /// Start continuous measurement in NORMAL_MODE
+  bool start_normal_conversion();
+  /// Start a one shot measurement in FORCED_MODE
+  bool start_forced_conversion();
+  /// Stop the conversion and return to SLEEP_MODE
+  bool stop_conversion();
+  /// Set the pressure oversampling: OFF, X1, X2, X4, X8, X16, X32
+  bool set_pressure_oversampling(Oversampling pressure_oversampling);
+  /// Set the temperature oversampling: OFF, X1, X2, X4, X8, X16, X32
+  bool set_temperature_oversampling(Oversampling temperature_oversampling);
+  /// Set the IIR filter setting: OFF, 2, 3, 8, 16, 32
+  bool set_iir_filter(IIRFilter iir_filter);
+  /// Get a temperature measurement
+  bool get_temperature(float &temperature);
+  /// Get a pressure measurement
+  bool get_pressure(float &pressure);
+  /// Get a temperature and pressure measurement
+  bool get_measurements(float &temperature, float &pressure);
+  /// Get a temperature and pressure measurement
+  bool get_measurement();
+  /// Set the barometer mode
+  bool set_mode(OperationMode mode);
+  /// Set the BMP388 oversampling register
+  bool set_oversampling_register(Oversampling pressure_oversampling, Oversampling temperature_oversampling);
+  /// Checks if a measurement is ready
+  bool data_ready();
+
+ protected:
+  Oversampling temperature_oversampling_{OVERSAMPLING_X16};
+  Oversampling pressure_oversampling_{OVERSAMPLING_X16};
+  IIRFilter iir_filter_{IIR_FILTER_OFF};
+  OperationMode operation_mode_{FORCED_MODE};
+  sensor::Sensor *temperature_sensor_;
+  sensor::Sensor *pressure_sensor_;
+  enum ErrorCode {
+    NONE = 0,
+    ERROR_COMMUNICATION_FAILED,
+    ERROR_WRONG_CHIP_ID,
+    ERROR_SENSOR_STATUS,
+    ERROR_SENSOR_RESET,
+  } error_code_{NONE};
+
+  struct {  // The BMP388 compensation trim parameters (coefficients)
+    uint16_t param_T1;
+    uint16_t param_T2;
+    int8_t param_T3;
+    int16_t param_P1;
+    int16_t param_P2;
+    int8_t param_P3;
+    int8_t param_P4;
+    uint16_t param_P5;
+    uint16_t param_P6;
+    int8_t param_P7;
+    int8_t param_P8;
+    int16_t param_P9;
+    int8_t param_P10;
+    int8_t param_P11;
+  } __attribute__((packed)) compensation_params_;
+
+  struct FloatParams {  // The BMP388 float point compensation trim parameters
+    float param_T1;
+    float param_T2;
+    float param_T3;
+    float param_P1;
+    float param_P2;
+    float param_P3;
+    float param_P4;
+    float param_P5;
+    float param_P6;
+    float param_P7;
+    float param_P8;
+    float param_P9;
+    float param_P10;
+    float param_P11;
+  } compensation_float_params_;
+
+  union {  // Copy of the BMP388's chip id register
+    struct {
+      uint8_t chip_id_nvm : 4;
+      uint8_t chip_id_fixed : 4;
+    } bit;
+    uint8_t reg;
+  } chip_id_ = {.reg = 0};
+
+  union {  // Copy of the BMP388's event register
+    struct {
+      uint8_t por_detected : 1;
+    } bit;
+    uint8_t reg;
+  } event_ = {.reg = 0};
+
+  union {  // Copy of the BMP388's interrupt status register
+    struct {
+      uint8_t fwm_int : 1;
+      uint8_t ffull_int : 1;
+      uint8_t : 1;
+      uint8_t drdy : 1;
+    } bit;
+    uint8_t reg;
+  } int_status_ = {.reg = 0};
+
+  union {  // Copy of the BMP388's power control register
+    struct {
+      uint8_t press_en : 1;
+      uint8_t temp_en : 1;
+      uint8_t : 2;
+      uint8_t mode : 2;
+    } bit;
+    uint8_t reg;
+  } pwr_ctrl_ = {.reg = 0};
+
+  union {  // Copy of the BMP388's oversampling register
+    struct {
+      uint8_t osr_p : 3;
+      uint8_t osr_t : 3;
+    } bit;
+    uint8_t reg;
+  } osr_ = {.reg = 0};
+
+  union {  // Copy of the BMP388's output data rate register
+    struct {
+      uint8_t odr_sel : 5;
+    } bit;
+    uint8_t reg;
+  } odr_ = {.reg = 0};
+
+  union {  // Copy of the BMP388's configuration register
+    struct {
+      uint8_t : 1;
+      uint8_t iir_filter : 3;
+    } bit;
+    uint8_t reg;
+  } config_ = {.reg = 0};
+
+  // Bosch temperature compensation function
+  float bmp388_compensate_temperature_(float uncomp_temp);
+  // Bosch pressure compensation function
+  float bmp388_compensate_pressure_(float uncomp_press, float t_lin);
+};
+
+}  // namespace bmp3xx
+}  // namespace esphome

esphome/components/bmp3xx/sensor.py

@@ -0,0 +1,100 @@
+import esphome.codegen as cg
+import esphome.config_validation as cv
+from esphome.components import i2c, sensor
+from esphome.const import (
+    CONF_ID,
+    CONF_IIR_FILTER,
+    CONF_OVERSAMPLING,
+    CONF_PRESSURE,
+    CONF_TEMPERATURE,
+    DEVICE_CLASS_PRESSURE,
+    DEVICE_CLASS_TEMPERATURE,
+    STATE_CLASS_MEASUREMENT,
+    UNIT_CELSIUS,
+    UNIT_HECTOPASCAL,
+)
+
+CODEOWNERS = ["@martgras"]
+DEPENDENCIES = ["i2c"]
+
+bmp3xx_ns = cg.esphome_ns.namespace("bmp3xx")
+Oversampling = bmp3xx_ns.enum("Oversampling")
+OVERSAMPLING_OPTIONS = {
+    "NONE": Oversampling.OVERSAMPLING_NONE,
+    "2X": Oversampling.OVERSAMPLING_X2,
+    "4X": Oversampling.OVERSAMPLING_X4,
+    "8X": Oversampling.OVERSAMPLING_X8,
+    "16X": Oversampling.OVERSAMPLING_X16,
+    "32x": Oversampling.OVERSAMPLING_X32,
+}
+
+IIRFilter = bmp3xx_ns.enum("IIRFilter")
+IIR_FILTER_OPTIONS = {
+    "OFF": IIRFilter.IIR_FILTER_OFF,
+    "2X": IIRFilter.IIR_FILTER_2,
+    "4X": IIRFilter.IIR_FILTER_4,
+    "8X": IIRFilter.IIR_FILTER_8,
+    "16X": IIRFilter.IIR_FILTER_16,
+    "32X": IIRFilter.IIR_FILTER_32,
+    "64X": IIRFilter.IIR_FILTER_64,
+    "128X": IIRFilter.IIR_FILTER_128,
+}
+
+BMP3XXComponent = bmp3xx_ns.class_(
+    "BMP3XXComponent", cg.PollingComponent, i2c.I2CDevice
+)
+
+CONFIG_SCHEMA = (
+    cv.Schema(
+        {
+            cv.GenerateID(): cv.declare_id(BMP3XXComponent),
+            cv.Optional(CONF_TEMPERATURE): sensor.sensor_schema(
+                unit_of_measurement=UNIT_CELSIUS,
+                accuracy_decimals=1,
+                device_class=DEVICE_CLASS_TEMPERATURE,
+                state_class=STATE_CLASS_MEASUREMENT,
+            ).extend(
+                {
+                    cv.Optional(CONF_OVERSAMPLING, default="2X"): cv.enum(
+                        OVERSAMPLING_OPTIONS, upper=True
+                    ),
+                }
+            ),
+            cv.Optional(CONF_PRESSURE): sensor.sensor_schema(
+                unit_of_measurement=UNIT_HECTOPASCAL,
+                accuracy_decimals=1,
+                device_class=DEVICE_CLASS_PRESSURE,
+                state_class=STATE_CLASS_MEASUREMENT,
+            ).extend(
+                {
+                    cv.Optional(CONF_OVERSAMPLING, default="16X"): cv.enum(
+                        OVERSAMPLING_OPTIONS, upper=True
+                    ),
+                }
+            ),
+            cv.Optional(CONF_IIR_FILTER, default="OFF"): cv.enum(
+                IIR_FILTER_OPTIONS, upper=True
+            ),
+        }
+    )
+    .extend(cv.polling_component_schema("60s"))
+    .extend(i2c.i2c_device_schema(0x77))
+)
+
+
+async def to_code(config):
+    var = cg.new_Pvariable(config[CONF_ID])
+    await cg.register_component(var, config)
+    await i2c.register_i2c_device(var, config)
+    cg.add(var.set_iir_filter_config(config[CONF_IIR_FILTER]))
+    if CONF_TEMPERATURE in config:
+        conf = config[CONF_TEMPERATURE]
+        sens = await sensor.new_sensor(conf)
+        cg.add(var.set_temperature_sensor(sens))
+        cg.add(var.set_temperature_oversampling_config(conf[CONF_OVERSAMPLING]))
+
+    if CONF_PRESSURE in config:
+        conf = config[CONF_PRESSURE]
+        sens = await sensor.new_sensor(conf)
+        cg.add(var.set_pressure_sensor(sens))
+        cg.add(var.set_pressure_oversampling_config(conf[CONF_OVERSAMPLING]))

tests/test5.yaml

@@ -180,6 +180,15 @@ sensor:
     co2:
       name: CO2 Sensor
 
+  - platform: bmp3xx
+    temperature:
+      name: "BMP Temperature"
+      oversampling: 16x
+    pressure:
+      name: "BMP Pressure"
+    address: 0x77
+    iir_filter: 2X
+
 script:
   - id: automation_test
     then: