ardupilot/libraries/AP_HAL_Linux/AnalogIn_ADS1115.h

43 lines
1007 B
C++

#pragma once
#include "AP_HAL_Linux.h"
#include <AP_ADC/AP_ADC.h>
#define ADS1115_ADC_MAX_CHANNELS 6
class AnalogSource_ADS1115: public AP_HAL::AnalogSource {
public:
friend class AnalogIn_ADS1115;
AnalogSource_ADS1115(int16_t pin);
float read_average();
float read_latest();
void set_pin(uint8_t p);
void set_stop_pin(uint8_t p) {}
void set_settle_time(uint16_t settle_time_ms){}
float voltage_average();
float voltage_latest();
float voltage_average_ratiometric();
private:
int16_t _pin;
float _value;
};
class AnalogIn_ADS1115: public AP_HAL::AnalogIn {
public:
AnalogIn_ADS1115();
void init() override;
AP_HAL::AnalogSource *channel(int16_t n) override;
/* Board voltage is not available */
float board_voltage() override { return 5.0f; }
private:
uint8_t _channels_number;
void _update();
AP_ADC_ADS1115 *_adc;
AnalogSource_ADS1115 *_channels[ADS1115_ADC_MAX_CHANNELS];
uint32_t _last_update_timestamp;
};