alexey.zholtikov/MQSensorsLib
1
0
Fork 0
mirror of https://github.com/miguel5612/MQSensorsLib.git synced 2025-03-15 05:17:30 +03:00
Code Issues Packages Projects Releases Wiki Activity

Added test equation

Browse Source
This commit is contained in:
miguel5612 2020-03-26 20:13:27 -05:00
parent b992078540
commit a4ea39b2f4
3 changed files with 27 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
examples/AlgorithmTester/AlgorithmTester.ino
View File

@ -36,6 +36,8 @@ MQUnifiedsensor MQ7(placa, Voltage_Resolution, ADC_Bit_Resolution, pin7, type);
MQUnifiedsensor MQ8(placa, Voltage_Resolution, ADC_Bit_Resolution, pin8, type);
MQUnifiedsensor MQ9(placa, Voltage_Resolution, ADC_Bit_Resolution, pin9, type);
int ratio[10] = {};
int expectedValue[10] = {};
void setup()
{
@ -87,6 +89,24 @@ void setup()
void loop()
{
// Testing MQ2 LPG
ratio = {};
expectedValue = {};
// Testing MQ3 Benzene
// Testing MQ4 CH4
// Testing MQ5 H2
// Testing MQ6 CH4
// Testing MQ7 CO
// Testing MQ8 H2
// Testing MQ9 LPG
}

6
src/MQUnifiedsensor.cpp
View File

@ -86,6 +86,12 @@ void MQUnifiedsensor::update()
{
_sensor_volt = this->getVoltage();
}
float MQUnifiedsensor::calculatePPM(double ratio)
{
if(_regressionMethod == "Exponential") _PPM= _a*pow(ratio, _b);
if(_regressionMethod == "Linear") _PPM= _a*ratio + _b;
return _PPM;
}
float MQUnifiedsensor::readSensor()
{
//More explained in: https://jayconsystems.com/blog/understanding-a-gas-sensor

1
src/MQUnifiedsensor.h
View File

@ -29,6 +29,7 @@ class MQUnifiedsensor
//user functions
float calibrate(float ratioInCleanAir);
float readSensor();
float calculatePPM(double ratio = 0);
//get function for info
double getR0();