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************************************************************************************************************************************************
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MQ sensor reading library for arduino
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Note: remember that all the parameters below can be modified during the program execution with the methods:
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setR0, setRL, setA, setB where you will have to send as parameter the new value, example: MQ4.setR0(20); //R0 = 20K
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Authors: Miguel A. Califa U - Yersson R. Carrillo A - Ghiordy F. Contreras C
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Contributors: Andres A. Martinez - Juan A. Rodríguez - Mario A. Rodríguez O
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Sensor: MQ-4
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Supply voltage: 5V
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R0: - Sin determinar -
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RL: 10KOhm
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Model: Logarithmic regression with parameters.
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a = 10000 | b = 50000
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Development board: Arduino
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|ADC_In | Ecuacion_V_ADC | Voltaje_ADC | Ecuacion_R | Resistencia_RS | EQ_Ratio | Ratio (RS/R0) | Ecuacion_PPM | PPM |
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***********************************************************************************************************************************************
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| 224 | v = ADC*5/1024 | 1.09375 | RS = ((5*RL)/Voltaje) - RL| RS = 1.07K | Ratio = RS/R0| Ratio = .123K | a*ratio^b | 100000 PPM |
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| 224 | v = ADC*5/1024 | 1.09375 | RS = ((5*RL)/Voltaje) - RL| RS = 1.07K | Ratio = RS/R0| Ratio = .123K | a*ratio^b | 100000 PPM |
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| 224 | v = ADC*5/1024 | 1.09375 | RS = ((5*RL)/Voltaje) - RL| RS = 1.07K | Ratio = RS/R0| Ratio = .123K | a*ratio^b | 100000 PPM |
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| 224 | v = ADC*5/1024 | 1.09375 | RS = ((5*RL)/Voltaje) - RL| RS = 1.07K | Ratio = RS/R0| Ratio = .123K | a*ratio^b | 100000 PPM |
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| 224 | v = ADC*5/1024 | 1.09375 | RS = ((5*RL)/Voltaje) - RL| RS = 1.07K | Ratio = RS/R0| Ratio = .123K | a*ratio^b | 100000 PPM |
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