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calibration

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This commit is contained in:
GrafZeppelin 2021-03-17 19:16:43 +01:00
parent df23e1d2aa
commit 2a79454dd9
2 changed files with 1 additions and 3 deletions
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2
lib/MQ135/MQ135.h
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@ -25,7 +25,7 @@ v1.0 - First release
#define RLOAD 10.0
/// Calibration resistance at atmospheric CO2 level
// #define RZERO 76.63
#define RZERO 1357.29
#define RZERO 420
/// Parameters for calculating ppm of CO2 from sensor resistance
#define PARA 116.6020682
#define PARB 2.769034857

2
src/main.cpp
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@ -2,8 +2,6 @@
#include <MQ135.h>
#include <dht.h>
#define RZERO 1
#define PIN_MQ135 A0
#define PIN_DHT11 A1