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54 lines
1.5 KiB
54 lines
1.5 KiB
/// -*- tab-width: 4; Mode: C++; c-basic-offset: 4; indent-tabs-mode: nil -*- |
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/* |
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This program is free software: you can redistribute it and/or modify |
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it under the terms of the GNU General Public License as published by |
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the Free Software Foundation, either version 3 of the License, or |
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(at your option) any later version. |
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This program is distributed in the hope that it will be useful, |
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but WITHOUT ANY WARRANTY; without even the implied warranty of |
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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GNU General Public License for more details. |
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You should have received a copy of the GNU General Public License |
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along with this program. If not, see <http://www.gnu.org/licenses/>. |
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*/ |
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/* |
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backend driver for airspeed from I2C |
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*/ |
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#ifndef __AP_AIRSPEED_I2C_H__ |
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#define __AP_AIRSPEED_I2C_H__ |
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#include <AP_Common.h> |
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#include <AP_HAL.h> |
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class AP_Airspeed_I2C_PX4 : AP_Airspeed_I2C { |
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public: |
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// constructor |
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AP_Airspeed_I2C(); |
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// probe and initialise the sensor |
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bool init(void); |
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// return the current differential_pressure in Pascal |
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bool get_differential_pressure(float &pressure); |
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// return the current temperature in degrees C, if available |
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bool get_temperature(float &temperature); |
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private: |
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void _measure(void); |
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void _collect(void); |
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void _timer(void); |
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float _temperature; |
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float _pressure; |
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uint32_t _last_sample_time_ms; |
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uint32_t _measurement_started_ms; |
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}; |
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#endif // __AP_AIRSPEED_I2C_H__ |
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