/* MQUnifiedsensor Library - testing library Library originally added 01 may 2019 by Miguel A Califa, Yersson Carrillo, Ghiordy Contreras, Mario Rodriguez Added example modified 21 March 2022 by Miguel Califa This example code is in the public domain. */ //Include the library #include #line 2 "basic.ino" #include /************************Hardware Related Macros************************************/ #define Board ("Arduino Mega") #define Pin2 (A2) //Analog input 2 of your arduino #define Pin3 (A3) //Analog input 3 of your arduino #define Pin4 (A4) //Analog input 4 of your arduino #define Pin5 (A5) //Analog input 5 of your arduino #define Pin6 (A6) //Analog input 6 of your arduino #define Pin7 (A7) //Analog input 7 of your arduino #define Pin8 (A8) //Analog input 8 of your arduino #define Pin9 (A9) //Analog input 9 of your arduino #define Pin10 (A10) //Analog input 10 of your arduino #define Pin11 (A11) //Analog input 11 of your arduino #define Pin12 (A12) //Analog input 12 of your arduino #define Pin13 (A13) //Analog input 13 of your arduino #define Pin14 (A14) //Analog input 14 of your arduino #define PWMPin (5) // Pin connected to mosfet /***********************Software Related Macros************************************/ #define RatioMQ2CleanAir (9.83) //RS / R0 = 9.83 ppm #define RatioMQ3CleanAir (60) //RS / R0 = 60 ppm #define RatioMQ4CleanAir (4.4) //RS / R0 = 4.4 ppm #define RatioMQ5CleanAir (6.5) //RS / R0 = 6.5 ppm #define RatioMQ6CleanAir (10) //RS / R0 = 10 ppm #define RatioMQ7CleanAir (27.5) //RS / R0 = 27.5 ppm #define RatioMQ8CleanAir (70) //RS / R0 = 70 ppm #define RatioMQ9CleanAir (9.6) //RS / R0 = 9.6 ppm #define RatioMQ136CleanAir (3.6) //RS / R0 = 9.6 ppm #define ADC_Bit_Resolution (10) // 10 bit ADC #define Voltage_Resolution (5) // Volt resolution to calc the voltage #define Type ("Arduino Mega 2560") //Board used /*****************************Globals***********************************************/ //Declare Sensor MQUnifiedsensor MQ2(Board, Voltage_Resolution, ADC_Bit_Resolution, Pin2, Type); MQUnifiedsensor MQ3(Board, Voltage_Resolution, ADC_Bit_Resolution, Pin3, Type); MQUnifiedsensor MQ4(Board, Voltage_Resolution, ADC_Bit_Resolution, Pin4, Type); MQUnifiedsensor MQ5(Board, Voltage_Resolution, ADC_Bit_Resolution, Pin5, Type); MQUnifiedsensor MQ6(Board, Voltage_Resolution, ADC_Bit_Resolution, Pin6, Type); MQUnifiedsensor MQ7(Board, Voltage_Resolution, ADC_Bit_Resolution, Pin7, Type); MQUnifiedsensor MQ8(Board, Voltage_Resolution, ADC_Bit_Resolution, Pin8, Type); MQUnifiedsensor MQ9(Board, Voltage_Resolution, ADC_Bit_Resolution, Pin9, Type); MQUnifiedsensor MQ131(Board, Voltage_Resolution, ADC_Bit_Resolution, Pin10, Type); //mq131 MQUnifiedsensor MQ135(Board, Voltage_Resolution, ADC_Bit_Resolution, Pin11, Type); //mq135 MQUnifiedsensor MQ136(Board, Voltage_Resolution, ADC_Bit_Resolution, Pin12, Type); //mq136 MQUnifiedsensor MQ303A(Board, Voltage_Resolution, ADC_Bit_Resolution, Pin13, Type); //mq303 MQUnifiedsensor MQ309A(Board, Voltage_Resolution, ADC_Bit_Resolution, Pin14, Type); //mq309 test(adcMaxValue) { int adcVal=1023; int volt = MQ2.getVoltage(false, true, adcVal); int expVolt = 5; assertEqual(volt,expVolt); } test(adcMinValue) { int adcVal=0; int volt = MQ2.getVoltage(false, true, adcVal); int expVolt = 0; assertEqual(volt,expVolt); } test(adcMidValue) { int adcVal=410; int volt = MQ2.getVoltage(false, true, adcVal); int expVolt = 2; assertEqual(volt,expVolt); } test(MQ2_LPG) { MQ2.setRegressionMethod(1); //_PPM = a*ratio^b MQ2.setA(574.25); MQ2.setB(-2.222); // Configure the equation to to calculate LPG concentration MQ2.init(); MQ2.setR0(10); int ppmExp=464; int PPM = MQ2.setRsR0RatioGetPPM(1.1); // Send and Rs/R0 and return PPM (Using datasheet) assertEqual(PPM,ppmExp); } test(MQ3_Alcohol) { MQ3.setRegressionMethod(1); //_PPM = a*ratio^b MQ3.setA(0.3934); MQ3.setB(-1.504); // Configure the equation to to calculate Alcohol concentration MQ3.init(); MQ3.setR0(10); int ppmExp=4; int PPM = MQ3.setRsR0RatioGetPPM(0.2); // Send and Rs/R0 and return PPM (Using datasheet) assertEqual(PPM,ppmExp); } test(MQ4_Smoke) { MQ4.setRegressionMethod(1); //_PPM = a*ratio^b MQ4.setA(30000000); MQ4.setB(-8.31); // Configure the equation to to calculate Smoke concentration MQ4.init(); MQ4.setR0(10); int ppmExp=297; int PPM = MQ4.setRsR0RatioGetPPM(4); // Send and Rs/R0 and return PPM (Using datasheet) assertEqual(PPM,ppmExp); } test(MQ5_LPG) { MQ5.setRegressionMethod(1); //_PPM = a*ratio^b MQ5.setA(80.897); MQ5.setB(-2.431); // Configure the equation to to calculate LPG concentration MQ5.init(); MQ5.setR0(10); int ppmExp=192; int PPM = MQ5.setRsR0RatioGetPPM(0.7); // Send and Rs/R0 and return PPM (Using datasheet) assertEqual(PPM,ppmExp); } test(MQ6_CH4) { MQ6.setRegressionMethod(1); //_PPM = a*ratio^b MQ6.setA(2127.2); MQ6.setB(-2.526); // Configure the equation to to calculate CH4 concentration MQ6.init(); MQ6.setR0(10); int ppmExp=2127; int PPM = MQ6.setRsR0RatioGetPPM(1); // Send and Rs/R0 and return PPM (Using datasheet) assertEqual(PPM,ppmExp); } test(MQ7_CH4) { MQ7.setRegressionMethod(1); //_PPM = a*ratio^b MQ7.setA(99.042); MQ7.setB(-1.518); // Configure the equation to to calculate CH4 concentration MQ7.init(); MQ7.setR0(10); int ppmExp=1139; int PPM = MQ7.setRsR0RatioGetPPM(0.2); // Send and Rs/R0 and return PPM (Using datasheet) assertEqual(PPM,ppmExp); } test(MQ8_H2) { MQ8.setRegressionMethod(1); //_PPM = a*ratio^b MQ8.setA(976.97); MQ8.setB(-0.688); // Configure the equation to to calculate H2 concentration MQ8.init(); MQ8.setR0(10); int ppmExp=2956; int PPM = MQ8.setRsR0RatioGetPPM(0.2); // Send and Rs/R0 and return PPM (Using datasheet) assertEqual(PPM,ppmExp); } test(MQ9_CO) { MQ9.setRegressionMethod(1); //_PPM = a*ratio^b MQ9.setA(599.65); MQ9.setB(-2.244); // Configure the equation to to calculate CO concentration MQ9.init(); MQ9.setR0(10); int ppmExp=989; int PPM = MQ9.setRsR0RatioGetPPM(0.8); // Send and Rs/R0 and return PPM (Using datasheet) assertEqual(PPM,ppmExp); } test(MQ131_O3) { MQ131.setRegressionMethod(1); //_PPM = a*ratio^b MQ131.setA(23.943); MQ131.setB(-1.11); // Configure the equation to to calculate O3 concentration MQ131.init(); MQ131.setR0(10); int ppmExp=11; int PPM = MQ131.setRsR0RatioGetPPM(2); // Send and Rs/R0 and return PPM (Using datasheet) assertEqual(PPM,ppmExp); } test(MQ135_CO2) { MQ135.setRegressionMethod(1); //_PPM = a*ratio^b MQ135.setA(110.47); MQ135.setB(-2.862); // Configure the equation to to calculate CO2 concentration MQ135.init(); MQ135.setR0(10); int ppmExp=110; int PPM = MQ135.setRsR0RatioGetPPM(1); // Send and Rs/R0 and return PPM (Using datasheet) assertEqual(PPM,ppmExp); } test(MQ136_H2S) { MQ136.setRegressionMethod(1); //_PPM = a*ratio^b MQ136.setA(36.737); MQ136.setB(-3.536); // Configure the equation to to calculate H2S concentration MQ136.init(); MQ136.setR0(10); int ppmExp=223; int PPM = MQ136.setRsR0RatioGetPPM(0.6); // Send and Rs/R0 and return PPM (Using datasheet) assertEqual(PPM,ppmExp); } test(MQ303A_Ethanol) { MQ303A.setRegressionMethod(1); //_PPM = a*ratio^b MQ303A.setA(3.4916); MQ303A.setB(-2.432); // Configure the equation to to calculate Ethanol concentration MQ303A.init(); MQ303A.setR0(10); int ppmExp=944; int PPM = MQ303A.setRsR0RatioGetPPM(0.1); // Send and Rs/R0 and return PPM (Using datasheet) assertEqual(PPM,ppmExp); } test(MQ303A_VoltResolution) { float vRes = 4.7; MQ303A.setVoltResolution(vRes); MQ303A.setADC(100); // provide dummy ADC value float correctionFactor = 0; // Optional environmental correction MQ303A.readSensor(true, correctionFactor); // dummy read for MQ303A assertEqualFloat(MQ303A.getVoltResolution(), vRes); } test(MQ309A_CO) { MQ309A.setRegressionMethod(1); //_PPM = a*ratio^b MQ309A.setA(1000000); MQ309A.setB(-4.01); // Configure the equation to to calculate CO concentration MQ309A.init(); MQ309A.setR0(10); int ppmExp=757; int PPM = MQ309A.setRsR0RatioGetPPM(6); // Send and Rs/R0 and return PPM (Using datasheet) assertEqual(PPM,ppmExp); } void setup() { Serial.begin(9600); while(!Serial) {} // Portability for Leonardo/Micro } void loop() { Test::run(); }