From 048e2c33f08c72dde46e3a6b113f18bb5e394cac Mon Sep 17 00:00:00 2001 From: miguel5612 Date: Tue, 9 Jul 2019 16:04:59 -0500 Subject: [PATCH] Added R0 values getted from Experiment 3 --- src/MQUnifiedsensor.h | 24 +++++++++++++----------- 1 file changed, 13 insertions(+), 11 deletions(-) diff --git a/src/MQUnifiedsensor.h b/src/MQUnifiedsensor.h index d67868d..7c12b69 100644 --- a/src/MQUnifiedsensor.h +++ b/src/MQUnifiedsensor.h @@ -24,6 +24,7 @@ /*****************************Globals***********************************************/ //From the graph, we can see that the resistance ratio in fresh air is a constant: +/* #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 @@ -36,20 +37,21 @@ #define RatioMQ135CleanAir 3.6//RS / R0 = 3.6 ppm #define RatioMQ303CleanAir 1 //RS / R0 = 1 ppm #define RatioMQ309CleanAir 11 //RS / R0 = 11 ppm + */ //From the calibration program we can obtain the R0 value for each sensor -#define R0_MQ2 1 //R0 after 48 hours pre-heating the sensor -#define R0_MQ3 1 //R0 after 48 hours pre-heating the sensor -#define R0_MQ4 1 //R0 after 48 hours pre-heating the sensor -#define R0_MQ5 1 //R0 after 48 hours pre-heating the sensor -#define R0_MQ6 1 //R0 after 48 hours pre-heating the sensor -#define R0_MQ7 1 //R0 after 48 hours pre-heating the sensor +#define R0_MQ2 9.659574468 //R0 after 48 hours pre-heating the sensor +#define R0_MQ3 3.86018237 //R0 after 48 hours pre-heating the sensor +#define R0_MQ4 47.775076 //R0 after 48 hours pre-heating the sensor +#define R0_MQ5 71.100304 //R0 after 48 hours pre-heating the sensor +#define R0_MQ6 13.4285714 //R0 after 48 hours pre-heating the sensor +#define R0_MQ7 4 //R0 after 48 hours pre-heating the sensor #define R0_MQ8 1 //R0 after 48 hours pre-heating the sensor -#define R0_MQ9 1 //R0 after 48 hours pre-heating the sensor -#define R0_MQ131 1 //R0 after 48 hours pre-heating the sensor -#define R0_MQ135 1//R0 after 48 hours pre-heating the sensor -#define R0_MQ303 1 //R0 after 48 hours pre-heating the sensor -#define R0_MQ309 1 //R0 after 48 hours pre-heating the sensor +#define R0_MQ9 9.42857143 //R0 after 48 hours pre-heating the sensor +#define R0_MQ131 385.40 //R0 after 48 hours pre-heating the sensor Thanks ostaquet HIGH_CONCENTRATION +#define R0_MQ135 76.63 //R0 after 48 hours pre-heating the sensor Thanks Georgk https://github.com/GeorgK/MQ135/blob/master/MQ135.h +#define R0_MQ303 10 //R0 after 48 hours pre-heating the sensor +#define R0_MQ309 10 //R0 after 48 hours pre-heating the sensor /***********************Software Related Macros************************************/