diff options
Diffstat (limited to 'src/modules')
-rw-r--r-- | src/modules/commander/commander.c | 36 | ||||
-rw-r--r-- | src/modules/sdlog/sdlog.c | 27 | ||||
-rw-r--r-- | src/modules/sensors/sensor_params.c | 2 | ||||
-rw-r--r-- | src/modules/sensors/sensors.cpp | 89 | ||||
-rw-r--r-- | src/modules/systemlib/airspeed.c | 2 | ||||
-rw-r--r-- | src/modules/uORB/objects_common.cpp | 3 | ||||
-rw-r--r-- | src/modules/uORB/topics/airspeed.h | 67 | ||||
-rw-r--r-- | src/modules/uORB/topics/differential_pressure.h | 14 | ||||
-rw-r--r-- | src/modules/uORB/topics/sensor_combined.h | 2 |
9 files changed, 180 insertions, 62 deletions
diff --git a/src/modules/commander/commander.c b/src/modules/commander/commander.c index 0f18d6cef..01ab9e3d9 100644 --- a/src/modules/commander/commander.c +++ b/src/modules/commander/commander.c @@ -676,22 +676,22 @@ void do_airspeed_calibration(int status_pub, struct vehicle_status_s *status) const int calibration_count = 2500; - int sub_differential_pressure = orb_subscribe(ORB_ID(differential_pressure)); - struct differential_pressure_s differential_pressure; + int diff_pres_sub = orb_subscribe(ORB_ID(differential_pressure)); + struct differential_pressure_s diff_pres; int calibration_counter = 0; - float airspeed_offset = 0.0f; + float diff_pres_offset = 0.0f; while (calibration_counter < calibration_count) { /* wait blocking for new data */ - struct pollfd fds[1] = { { .fd = sub_differential_pressure, .events = POLLIN } }; + struct pollfd fds[1] = { { .fd = diff_pres_sub, .events = POLLIN } }; int poll_ret = poll(fds, 1, 1000); if (poll_ret) { - orb_copy(ORB_ID(differential_pressure), sub_differential_pressure, &differential_pressure); - airspeed_offset += differential_pressure.voltage; + orb_copy(ORB_ID(differential_pressure), diff_pres_sub, &diff_pres); + diff_pres_offset += diff_pres.differential_pressure_pa; calibration_counter++; } else if (poll_ret == 0) { @@ -701,11 +701,11 @@ void do_airspeed_calibration(int status_pub, struct vehicle_status_s *status) } } - airspeed_offset = airspeed_offset / calibration_count; + diff_pres_offset = diff_pres_offset / calibration_count; - if (isfinite(airspeed_offset)) { + if (isfinite(diff_pres_offset)) { - if (param_set(param_find("SENS_VAIR_OFF"), &(airspeed_offset))) { + if (param_set(param_find("SENS_DPRES_OFF"), &(diff_pres_offset))) { mavlink_log_critical(mavlink_fd, "Setting offs failed!"); } @@ -735,7 +735,7 @@ void do_airspeed_calibration(int status_pub, struct vehicle_status_s *status) status->flag_preflight_airspeed_calibration = false; state_machine_publish(status_pub, status, mavlink_fd); - close(sub_differential_pressure); + close(diff_pres_sub); } @@ -1356,10 +1356,10 @@ int commander_thread_main(int argc, char *argv[]) struct sensor_combined_s sensors; memset(&sensors, 0, sizeof(sensors)); - int differential_pressure_sub = orb_subscribe(ORB_ID(differential_pressure)); - struct differential_pressure_s differential_pressure; - memset(&differential_pressure, 0, sizeof(differential_pressure)); - uint64_t last_differential_pressure_time = 0; + int diff_pres_sub = orb_subscribe(ORB_ID(differential_pressure)); + struct differential_pressure_s diff_pres; + memset(&diff_pres, 0, sizeof(diff_pres)); + uint64_t last_diff_pres_time = 0; /* Subscribe to command topic */ int cmd_sub = orb_subscribe(ORB_ID(vehicle_command)); @@ -1414,11 +1414,11 @@ int commander_thread_main(int argc, char *argv[]) orb_copy(ORB_ID(sensor_combined), sensor_sub, &sensors); } - orb_check(differential_pressure_sub, &new_data); + orb_check(diff_pres_sub, &new_data); if (new_data) { - orb_copy(ORB_ID(differential_pressure), differential_pressure_sub, &differential_pressure); - last_differential_pressure_time = differential_pressure.timestamp; + orb_copy(ORB_ID(differential_pressure), diff_pres_sub, &diff_pres); + last_diff_pres_time = diff_pres.timestamp; } orb_check(cmd_sub, &new_data); @@ -1633,7 +1633,7 @@ int commander_thread_main(int argc, char *argv[]) } /* Check for valid airspeed/differential pressure measurements */ - if (hrt_absolute_time() - last_differential_pressure_time < 2000000) { + if (hrt_absolute_time() - last_diff_pres_time < 2000000) { current_status.flag_airspeed_valid = true; } else { diff --git a/src/modules/sdlog/sdlog.c b/src/modules/sdlog/sdlog.c index df8745d9f..84a9eb6ac 100644 --- a/src/modules/sdlog/sdlog.c +++ b/src/modules/sdlog/sdlog.c @@ -71,6 +71,7 @@ #include <uORB/topics/optical_flow.h> #include <uORB/topics/battery_status.h> #include <uORB/topics/differential_pressure.h> +#include <uORB/topics/airspeed.h> #include <systemlib/systemlib.h> @@ -443,7 +444,8 @@ int sdlog_thread_main(int argc, char *argv[]) struct vehicle_vicon_position_s vicon_pos; struct optical_flow_s flow; struct battery_status_s batt; - struct differential_pressure_s diff_pressure; + struct differential_pressure_s diff_pres; + struct airspeed_s airspeed; } buf; memset(&buf, 0, sizeof(buf)); @@ -461,7 +463,8 @@ int sdlog_thread_main(int argc, char *argv[]) int vicon_pos_sub; int flow_sub; int batt_sub; - int diff_pressure_sub; + int diff_pres_sub; + int airspeed_sub; } subs; /* --- MANAGEMENT - LOGGING COMMAND --- */ @@ -558,11 +561,18 @@ int sdlog_thread_main(int argc, char *argv[]) /* --- DIFFERENTIAL PRESSURE --- */ /* subscribe to ORB for flow measurements */ - subs.diff_pressure_sub = orb_subscribe(ORB_ID(differential_pressure)); - fds[fdsc_count].fd = subs.diff_pressure_sub; + subs.diff_pres_sub = orb_subscribe(ORB_ID(differential_pressure)); + fds[fdsc_count].fd = subs.diff_pres_sub; fds[fdsc_count].events = POLLIN; fdsc_count++; + /* --- AIRSPEED --- */ + /* subscribe to ORB for airspeed */ + subs.airspeed_sub = orb_subscribe(ORB_ID(airspeed)); + fds[fdsc_count].fd = subs.airspeed_sub; + fds[fdsc_count].events = POLLIN; + fdsc_count++; + /* WARNING: If you get the error message below, * then the number of registered messages (fdsc) * differs from the number of messages in the above list. @@ -654,7 +664,8 @@ int sdlog_thread_main(int argc, char *argv[]) orb_copy(ORB_ID(vehicle_attitude), subs.att_sub, &buf.att); orb_copy(ORB_ID(vehicle_vicon_position), subs.vicon_pos_sub, &buf.vicon_pos); orb_copy(ORB_ID(optical_flow), subs.flow_sub, &buf.flow); - orb_copy(ORB_ID(differential_pressure), subs.diff_pressure_sub, &buf.diff_pressure); + orb_copy(ORB_ID(differential_pressure), subs.diff_pres_sub, &buf.diff_pres); + orb_copy(ORB_ID(airspeed), subs.airspeed_sub, &buf.airspeed); orb_copy(ORB_ID(battery_status), subs.batt_sub, &buf.batt); /* if skipping is on or logging is disabled, ignore */ @@ -691,9 +702,9 @@ int sdlog_thread_main(int argc, char *argv[]) .vicon = {buf.vicon_pos.x, buf.vicon_pos.y, buf.vicon_pos.z, buf.vicon_pos.roll, buf.vicon_pos.pitch, buf.vicon_pos.yaw}, .control_effective = {buf.act_controls_effective.control_effective[0], buf.act_controls_effective.control_effective[1], buf.act_controls_effective.control_effective[2], buf.act_controls_effective.control_effective[3]}, .flow = {buf.flow.flow_raw_x, buf.flow.flow_raw_y, buf.flow.flow_comp_x_m, buf.flow.flow_comp_y_m, buf.flow.ground_distance_m, buf.flow.quality}, - .diff_pressure = buf.diff_pressure.differential_pressure_mbar, - .ind_airspeed = buf.diff_pressure.indicated_airspeed_m_s, - .true_airspeed = buf.diff_pressure.true_airspeed_m_s + .diff_pressure = buf.diff_pres.differential_pressure_pa, + .ind_airspeed = buf.airspeed.indicated_airspeed_m_s, + .true_airspeed = buf.airspeed.true_airspeed_m_s }; /* put into buffer for later IO */ diff --git a/src/modules/sensors/sensor_params.c b/src/modules/sensors/sensor_params.c index c850e3a1e..230060148 100644 --- a/src/modules/sensors/sensor_params.c +++ b/src/modules/sensors/sensor_params.c @@ -64,7 +64,7 @@ PARAM_DEFINE_FLOAT(SENS_ACC_XSCALE, 1.0f); PARAM_DEFINE_FLOAT(SENS_ACC_YSCALE, 1.0f); PARAM_DEFINE_FLOAT(SENS_ACC_ZSCALE, 1.0f); -PARAM_DEFINE_FLOAT(SENS_VAIR_OFF, 2.5f); +PARAM_DEFINE_INT32(SENS_DPRES_OFF, 1667); PARAM_DEFINE_FLOAT(RC1_MIN, 1000.0f); PARAM_DEFINE_FLOAT(RC1_TRIM, 1500.0f); diff --git a/src/modules/sensors/sensors.cpp b/src/modules/sensors/sensors.cpp index 123bbb120..6b6aeedee 100644 --- a/src/modules/sensors/sensors.cpp +++ b/src/modules/sensors/sensors.cpp @@ -77,6 +77,7 @@ #include <uORB/topics/parameter_update.h> #include <uORB/topics/battery_status.h> #include <uORB/topics/differential_pressure.h> +#include <uORB/topics/airspeed.h> #define GYRO_HEALTH_COUNTER_LIMIT_ERROR 20 /* 40 ms downtime at 500 Hz update rate */ #define ACC_HEALTH_COUNTER_LIMIT_ERROR 20 /* 40 ms downtime at 500 Hz update rate */ @@ -98,6 +99,12 @@ #define BAT_VOL_LOWPASS_2 0.01f #define VOLTAGE_BATTERY_IGNORE_THRESHOLD_VOLTS 3.5f +/** + * HACK - true temperature is much less than indicated temperature in baro, + * subtract 5 degrees in an attempt to account for the electrical upheating of the PCB + */ +#define PCB_TEMP_ESTIMATE_DEG 5.0f + #define PPM_INPUT_TIMEOUT_INTERVAL 50000 /**< 50 ms timeout / 20 Hz */ #define limit_minus_one_to_one(arg) (arg < -1.0f) ? -1.0f : ((arg > 1.0f) ? 1.0f : arg) @@ -156,6 +163,8 @@ private: int _mag_sub; /**< raw mag data subscription */ int _rc_sub; /**< raw rc channels data subscription */ int _baro_sub; /**< raw baro data subscription */ + int _airspeed_sub; /**< airspeed subscription */ + int _diff_pres_sub; /**< raw differential pressure subscription */ int _vstatus_sub; /**< vehicle status subscription */ int _params_sub; /**< notification of parameter updates */ int _manual_control_sub; /**< notification of manual control updates */ @@ -165,13 +174,15 @@ private: orb_advert_t _rc_pub; /**< raw r/c control topic */ orb_advert_t _battery_pub; /**< battery status */ orb_advert_t _airspeed_pub; /**< airspeed */ + orb_advert_t _diff_pres_pub; /**< differential_pressure */ perf_counter_t _loop_perf; /**< loop performance counter */ struct rc_channels_s _rc; /**< r/c channel data */ struct battery_status_s _battery_status; /**< battery status */ struct baro_report _barometer; /**< barometer data */ - struct differential_pressure_s _differential_pressure; + struct differential_pressure_s _diff_pres; + struct airspeed_s _airspeed; struct { float min[_rc_max_chan_count]; @@ -187,7 +198,7 @@ private: float mag_scale[3]; float accel_offset[3]; float accel_scale[3]; - float airspeed_offset; + int diff_pres_offset_pa; int rc_type; @@ -236,7 +247,7 @@ private: param_t accel_scale[3]; param_t mag_offset[3]; param_t mag_scale[3]; - param_t airspeed_offset; + param_t diff_pres_offset_pa; param_t rc_map_roll; param_t rc_map_pitch; @@ -331,6 +342,14 @@ private: void baro_poll(struct sensor_combined_s &raw); /** + * Poll the differential pressure sensor for updated data. + * + * @param raw Combined sensor data structure into which + * data should be returned. + */ + void diff_pres_poll(struct sensor_combined_s &raw); + + /** * Check for changes in vehicle status. */ void vehicle_status_poll(); @@ -400,6 +419,7 @@ Sensors::Sensors() : _rc_pub(-1), _battery_pub(-1), _airspeed_pub(-1), + _diff_pres_pub(-1), /* performance counters */ _loop_perf(perf_alloc(PC_ELAPSED, "sensor task update")) @@ -484,8 +504,8 @@ Sensors::Sensors() : _parameter_handles.mag_scale[1] = param_find("SENS_MAG_YSCALE"); _parameter_handles.mag_scale[2] = param_find("SENS_MAG_ZSCALE"); - /*Airspeed offset */ - _parameter_handles.airspeed_offset = param_find("SENS_VAIR_OFF"); + /* Differential pressure offset */ + _parameter_handles.diff_pres_offset_pa = param_find("SENS_DPRES_OFF"); _parameter_handles.battery_voltage_scaling = param_find("BAT_V_SCALING"); @@ -695,7 +715,7 @@ Sensors::parameters_update() param_get(_parameter_handles.mag_scale[2], &(_parameters.mag_scale[2])); /* Airspeed offset */ - param_get(_parameter_handles.airspeed_offset, &(_parameters.airspeed_offset)); + param_get(_parameter_handles.diff_pres_offset_pa, &(_parameters.diff_pres_offset_pa)); /* scaling of ADC ticks to battery voltage */ if (param_get(_parameter_handles.battery_voltage_scaling, &(_parameters.battery_voltage_scaling)) != OK) { @@ -890,6 +910,32 @@ Sensors::baro_poll(struct sensor_combined_s &raw) } void +Sensors::diff_pres_poll(struct sensor_combined_s &raw) +{ + bool updated; + orb_check(_diff_pres_sub, &updated); + + if (updated) { + orb_copy(ORB_ID(differential_pressure), _diff_pres_sub, &_diff_pres); + + raw.differential_pressure_pa = _diff_pres.differential_pressure_pa; + raw.differential_pressure_counter++; + + _airspeed.indicated_airspeed_m_s = calc_indicated_airspeed(_diff_pres.differential_pressure_pa); + _airspeed.true_airspeed_m_s = calc_true_airspeed(_diff_pres.differential_pressure_pa + raw.baro_pres_mbar*1e2f, + raw.baro_pres_mbar*1e2f, raw.baro_temp_celcius - PCB_TEMP_ESTIMATE_DEG); + + /* announce the airspeed if needed, just publish else */ + if (_airspeed_pub > 0) { + orb_publish(ORB_ID(airspeed), _airspeed_pub, &_airspeed); + + } else { + _airspeed_pub = orb_advertise(ORB_ID(airspeed), &_airspeed); + } + } +} + +void Sensors::vehicle_status_poll() { struct vehicle_status_s vstatus; @@ -1047,31 +1093,18 @@ Sensors::adc_poll(struct sensor_combined_s &raw) */ if (voltage > 0.4f) { - float diff_pres_pa = (voltage - _parameters.airspeed_offset) * 1000.0f; //for MPXV7002DP sensor - - float airspeed_true = calc_true_airspeed(diff_pres_pa + _barometer.pressure*1e2f, - _barometer.pressure*1e2f, _barometer.temperature - 5.0f); //factor 1e2 for conversion from mBar to Pa - // XXX HACK - true temperature is much less than indicated temperature in baro, - // subtract 5 degrees in an attempt to account for the electrical upheating of the PCB + float diff_pres_pa = voltage * 1000.0f - _parameters.diff_pres_offset_pa; //for MPXV7002DP sensor - float airspeed_indicated = calc_indicated_airspeed(diff_pres_pa); - - //printf("voltage: %.4f, diff_pres_pa %.4f, baro press %.4f Pa, v_ind %.4f, v_true %.4f\n", (double)voltage, (double)diff_pres_pa, (double)_barometer.pressure*1e2f, (double)airspeed_indicated, (double)airspeed_true); - - _differential_pressure.timestamp = hrt_absolute_time(); - _differential_pressure.static_pressure_mbar = _barometer.pressure; - _differential_pressure.differential_pressure_mbar = diff_pres_pa*1e-2f; - _differential_pressure.temperature_celcius = _barometer.temperature; - _differential_pressure.indicated_airspeed_m_s = airspeed_indicated; - _differential_pressure.true_airspeed_m_s = airspeed_true; - _differential_pressure.voltage = voltage; + _diff_pres.timestamp = hrt_absolute_time(); + _diff_pres.differential_pressure_pa = diff_pres_pa; + _diff_pres.voltage = voltage; /* announce the airspeed if needed, just publish else */ - if (_airspeed_pub > 0) { - orb_publish(ORB_ID(differential_pressure), _airspeed_pub, &_differential_pressure); + if (_diff_pres_pub > 0) { + orb_publish(ORB_ID(differential_pressure), _diff_pres_pub, &_diff_pres); } else { - _airspeed_pub = orb_advertise(ORB_ID(differential_pressure), &_differential_pressure); + _diff_pres_pub = orb_advertise(ORB_ID(differential_pressure), &_diff_pres); } } } @@ -1310,6 +1343,7 @@ Sensors::task_main() _mag_sub = orb_subscribe(ORB_ID(sensor_mag)); _rc_sub = orb_subscribe(ORB_ID(input_rc)); _baro_sub = orb_subscribe(ORB_ID(sensor_baro)); + _diff_pres_sub = orb_subscribe(ORB_ID(differential_pressure)); _vstatus_sub = orb_subscribe(ORB_ID(vehicle_status)); _params_sub = orb_subscribe(ORB_ID(parameter_update)); _manual_control_sub = orb_subscribe(ORB_ID(manual_control_setpoint)); @@ -1336,6 +1370,7 @@ Sensors::task_main() gyro_poll(raw); mag_poll(raw); baro_poll(raw); + diff_pres_poll(raw); parameter_update_poll(true /* forced */); @@ -1384,6 +1419,8 @@ Sensors::task_main() /* check battery voltage */ adc_poll(raw); + diff_pres_poll(raw); + /* Inform other processes that new data is available to copy */ if (_publishing) orb_publish(ORB_ID(sensor_combined), _sensor_pub, &raw); diff --git a/src/modules/systemlib/airspeed.c b/src/modules/systemlib/airspeed.c index 264287b10..15bb833a9 100644 --- a/src/modules/systemlib/airspeed.c +++ b/src/modules/systemlib/airspeed.c @@ -97,7 +97,7 @@ float calc_true_airspeed(float total_pressure, float static_pressure, float temp float density = get_air_density(static_pressure, temperature_celsius); if (density < 0.0001f || !isfinite(density)) { density = CONSTANTS_AIR_DENSITY_SEA_LEVEL_15C; - printf("[airspeed] Invalid air density, using density at sea level\n"); +// printf("[airspeed] Invalid air density, using density at sea level\n"); } float pressure_difference = total_pressure - static_pressure; diff --git a/src/modules/uORB/objects_common.cpp b/src/modules/uORB/objects_common.cpp index 136375140..4197f6fb2 100644 --- a/src/modules/uORB/objects_common.cpp +++ b/src/modules/uORB/objects_common.cpp @@ -122,6 +122,9 @@ ORB_DEFINE(optical_flow, struct optical_flow_s); #include "topics/omnidirectional_flow.h" ORB_DEFINE(omnidirectional_flow, struct omnidirectional_flow_s); +#include "topics/airspeed.h" +ORB_DEFINE(airspeed, struct airspeed_s); + #include "topics/differential_pressure.h" ORB_DEFINE(differential_pressure, struct differential_pressure_s); diff --git a/src/modules/uORB/topics/airspeed.h b/src/modules/uORB/topics/airspeed.h new file mode 100644 index 000000000..a3da3758f --- /dev/null +++ b/src/modules/uORB/topics/airspeed.h @@ -0,0 +1,67 @@ +/**************************************************************************** + * + * Copyright (C) 2012-2013 PX4 Development Team. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name PX4 nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/** + * @file airspeed.h + * + * Definition of airspeed topic + */ + +#ifndef TOPIC_AIRSPEED_H_ +#define TOPIC_AIRSPEED_H_ + +#include "../uORB.h" +#include <stdint.h> + +/** + * @addtogroup topics + * @{ + */ + +/** + * Airspeed + */ +struct airspeed_s { + uint64_t timestamp; /**< microseconds since system boot, needed to integrate */ + float indicated_airspeed_m_s; /**< indicated airspeed in meters per second, -1 if unknown */ + float true_airspeed_m_s; /**< true airspeed in meters per second, -1 if unknown */ +}; + +/** + * @} + */ + +/* register this as object request broker structure */ +ORB_DECLARE(airspeed); + +#endif diff --git a/src/modules/uORB/topics/differential_pressure.h b/src/modules/uORB/topics/differential_pressure.h index d5e4bf37e..8ce85213b 100644 --- a/src/modules/uORB/topics/differential_pressure.h +++ b/src/modules/uORB/topics/differential_pressure.h @@ -49,16 +49,14 @@ */ /** - * Differential pressure and airspeed + * Differential pressure. */ struct differential_pressure_s { - uint64_t timestamp; /**< microseconds since system boot, needed to integrate */ - float static_pressure_mbar; /**< Static / environment pressure */ - float differential_pressure_mbar; /**< Differential pressure reading */ - float temperature_celcius; /**< ambient temperature in celcius, -1 if unknown */ - float indicated_airspeed_m_s; /**< indicated airspeed in meters per second, -1 if unknown */ - float true_airspeed_m_s; /**< true airspeed in meters per second, -1 if unknown */ - float voltage; /**< Voltage from the airspeed sensor (voltage divider already compensated) */ + uint64_t timestamp; /**< microseconds since system boot, needed to integrate */ + uint16_t differential_pressure_pa; /**< Differential pressure reading */ + uint16_t max_differential_pressure_pa; /**< Maximum differential pressure reading */ + float voltage; /**< Voltage from analog airspeed sensors (voltage divider already compensated) */ + }; /** diff --git a/src/modules/uORB/topics/sensor_combined.h b/src/modules/uORB/topics/sensor_combined.h index 961ee8b4a..9a76b5182 100644 --- a/src/modules/uORB/topics/sensor_combined.h +++ b/src/modules/uORB/topics/sensor_combined.h @@ -103,6 +103,8 @@ struct sensor_combined_s { float mcu_temp_celcius; /**< Internal temperature measurement of MCU */ uint32_t baro_counter; /**< Number of raw baro measurements taken */ + float differential_pressure_pa; /**< Airspeed sensor differential pressure */ + uint32_t differential_pressure_counter; /**< Number of raw differential pressure measurements taken */ }; /** |