Add support for QMP6988 Pressure sensor (#3192)

2026-06-07 13:24:56 +02:00 · 2022-03-15 06:09:17 +11:00
parent 59f67796dc
commit 99f5ed1461
6 changed files with 627 additions and 0 deletions
@@ -0,0 +1,116 @@
+#pragma once
+
+#include "esphome/core/log.h"
+#include "esphome/core/component.h"
+#include "esphome/core/hal.h"
+#include "esphome/core/helpers.h"
+#include "esphome/components/sensor/sensor.h"
+#include "esphome/components/i2c/i2c.h"
+
+namespace esphome {
+namespace qmp6988 {
+
+#define QMP6988_U16_t unsigned short
+#define QMP6988_S16_t short
+#define QMP6988_U32_t unsigned int
+#define QMP6988_S32_t int
+#define QMP6988_U64_t unsigned long long
+#define QMP6988_S64_t long long
+
+/* oversampling */
+enum QMP6988Oversampling {
+  QMP6988_OVERSAMPLING_SKIPPED = 0x00,
+  QMP6988_OVERSAMPLING_1X = 0x01,
+  QMP6988_OVERSAMPLING_2X = 0x02,
+  QMP6988_OVERSAMPLING_4X = 0x03,
+  QMP6988_OVERSAMPLING_8X = 0x04,
+  QMP6988_OVERSAMPLING_16X = 0x05,
+  QMP6988_OVERSAMPLING_32X = 0x06,
+  QMP6988_OVERSAMPLING_64X = 0x07,
+};
+
+/* filter */
+enum QMP6988IIRFilter {
+  QMP6988_IIR_FILTER_OFF = 0x00,
+  QMP6988_IIR_FILTER_2X = 0x01,
+  QMP6988_IIR_FILTER_4X = 0x02,
+  QMP6988_IIR_FILTER_8X = 0x03,
+  QMP6988_IIR_FILTER_16X = 0x04,
+  QMP6988_IIR_FILTER_32X = 0x05,
+};
+
+using qmp6988_cali_data_t = struct Qmp6988CaliData {
+  QMP6988_S32_t COE_a0;
+  QMP6988_S16_t COE_a1;
+  QMP6988_S16_t COE_a2;
+  QMP6988_S32_t COE_b00;
+  QMP6988_S16_t COE_bt1;
+  QMP6988_S16_t COE_bt2;
+  QMP6988_S16_t COE_bp1;
+  QMP6988_S16_t COE_b11;
+  QMP6988_S16_t COE_bp2;
+  QMP6988_S16_t COE_b12;
+  QMP6988_S16_t COE_b21;
+  QMP6988_S16_t COE_bp3;
+};
+
+using qmp6988_fk_data_t = struct Qmp6988FkData {
+  float a0, b00;
+  float a1, a2, bt1, bt2, bp1, b11, bp2, b12, b21, bp3;
+};
+
+using qmp6988_ik_data_t = struct Qmp6988IkData {
+  QMP6988_S32_t a0, b00;
+  QMP6988_S32_t a1, a2;
+  QMP6988_S64_t bt1, bt2, bp1, b11, bp2, b12, b21, bp3;
+};
+
+using qmp6988_data_t = struct Qmp6988Data {
+  uint8_t chip_id;
+  uint8_t power_mode;
+  float temperature;
+  float pressure;
+  float altitude;
+  qmp6988_cali_data_t qmp6988_cali;
+  qmp6988_ik_data_t ik;
+};
+
+class QMP6988Component : public PollingComponent, public i2c::I2CDevice {
+ public:
+  void set_temperature_sensor(sensor::Sensor *temperature_sensor) { temperature_sensor_ = temperature_sensor; }
+  void set_pressure_sensor(sensor::Sensor *pressure_sensor) { pressure_sensor_ = pressure_sensor; }
+
+  void setup() override;
+  void dump_config() override;
+  float get_setup_priority() const override;
+  void update() override;
+
+  void set_iir_filter(QMP6988IIRFilter iirfilter);
+  void set_temperature_oversampling(QMP6988Oversampling oversampling_t);
+  void set_pressure_oversampling(QMP6988Oversampling oversampling_p);
+
+ protected:
+  qmp6988_data_t qmp6988_data_;
+  sensor::Sensor *temperature_sensor_;
+  sensor::Sensor *pressure_sensor_;
+
+  QMP6988Oversampling temperature_oversampling_{QMP6988_OVERSAMPLING_16X};
+  QMP6988Oversampling pressure_oversampling_{QMP6988_OVERSAMPLING_16X};
+  QMP6988IIRFilter iir_filter_{QMP6988_IIR_FILTER_OFF};
+
+  void software_reset_();
+  bool get_calibration_data_();
+  bool device_check_();
+  void set_power_mode_(uint8_t power_mode);
+  void write_oversampling_temperature_(unsigned char oversampling_t);
+  void write_oversampling_pressure_(unsigned char oversampling_p);
+  void write_filter_(unsigned char filter);
+  void calculate_pressure_();
+  void calculate_altitude_(float pressure, float temp);
+
+  QMP6988_S32_t get_compensated_pressure_(qmp6988_ik_data_t *ik, QMP6988_S32_t dp, QMP6988_S16_t tx);
+  QMP6988_S16_t get_compensated_temperature_(qmp6988_ik_data_t *ik, QMP6988_S32_t dt);
+};
+
+}  // namespace qmp6988
+}  // namespace esphome