INSA/gaz-sensor
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Fixed issue with analog.

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This commit is contained in:
Yohan Boujon 2024-12-03 16:55:17 +01:00
parent bbb968e1a5
commit 88e635bfb7
2 changed files with 7 additions and 2 deletions
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4
lib/sensor/sensor.cpp
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@ -13,13 +13,13 @@ void Sensor::init(const uint8_t pin)
float Sensor::get_analog()
{
return analogRead(_pin);
return (static_cast<float>(analogRead(_pin))/(1<<12))*3.3f;
}
// 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 sensor_volt=(static_cast<float>(analogRead(_pin))/(1<<12))*3.3f;
float RS_gas = (3.3-sensor_volt)/sensor_volt;
return RS_gas/R0;
}

5
src/main.cpp
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@ -113,7 +113,12 @@ void setup() {
// Initialize SSD1306
Init_SSD1306();
delay(5000);
// Initialize Gateway from LoRa
initGateway();
// Initialize Sensor
gaz_sensor.init(SENSOR_PIN);
}
void loop() {