ardupilot/libraries/AP_TemperatureSensor/AP_TemperatureSensor_Analog.h

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/*
This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include "AP_TemperatureSensor_config.h"
#if AP_TEMPERATURE_SENSOR_ANALOG_ENABLED
#include "AP_TemperatureSensor_Backend.h"
#include <AP_Param/AP_Param.h>
class AP_TemperatureSensor_Analog : public AP_TemperatureSensor_Backend {
public:
AP_TemperatureSensor_Analog(AP_TemperatureSensor &front, AP_TemperatureSensor::TemperatureSensor_State &state, AP_TemperatureSensor_Params &params);
void update(void) override;
static const struct AP_Param::GroupInfo var_info[];
private:
AP_HAL::AnalogSource *_analog_source;
// Pin used to measure voltage
AP_Int8 _pin;
// Polynomial coefficients to calculate temperature from voltage
AP_Float _a[6];
};
#endif // AP_TEMPERATURE_SENSOR_ANALOG_ENABLED