INSA/gaz-sensor
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Merge branch 'master' of https://github.com/Lemonochrme/gaz-sensor-ptp-iss

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This commit is contained in:
Lemonochrme 2024-12-03 16:54:18 +01:00
commit bbb968e1a5
2 changed files with 14 additions and 14 deletions
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22
lib/sensor/sensor.cpp
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@ -11,17 +11,15 @@ void Sensor::init(const uint8_t pin)
digitalWrite(_pin, HIGH);
}
float Sensor::get_value()
float Sensor::get_analog()
{
/*
float sensor_volt;
float RS_gas; // Get value of RS in a GAS
float ratio; // Get ratio RS_GAS/RS_air
int sensorValue = analogRead(A0);
sensor_volt=(float)sensorValue/1024*5.0;
RS_gas = (5.0-sensor_volt)/sensor_volt; // omit *RL
//-Replace the name "R0" with the value of R0 in the demo of First Test
ratio = RS_gas/R0; // ratio = RS/R0
*/
return ((analogRead(_pin))/1024*5.0);
return analogRead(_pin);
}
// Normally should be 5V, but the ADC can only see up to 3.3 on 12 bits
float Sensor::get_RSR0()
{
float sensor_volt=(float)(analogRead(_pin))/((1<<12)*3.3);
float RS_gas = (3.3-sensor_volt)/sensor_volt;
return RS_gas/R0;
}

6
lib/sensor/sensor.hpp
View file

@ -3,13 +3,15 @@
#include <Arduino.h>
constexpr uint8_t SENSOR_PIN = 36;
constexpr uint8_t SENSOR_PIN = 34;
constexpr float R0 = 0.8;
class Sensor {
public:
Sensor();
void init(const uint8_t pin);
float get_value();
float get_analog();
float get_RSR0();
private:
uint8_t _pin;
};