Library for MQ7 gas sensor
MQ7.cpp
- Committer:
- pkunnals
- Date:
- 2021-03-19
- Revision:
- 1:beae29b45281
- Parent:
- 0:398854b7b855
File content as of revision 1:beae29b45281:
#include "MQ7.h" #include "mbed.h" MQ7::MQ7(PinName pinA, PinName pinD) : _pinA(pinA), _pinD(pinD) { } int MQ7::get_CO_value(){ float a = _pinA.read_u16(); printf("CO ADC Value = %f\r\n",a); if(a<20000){ return 1; }else if(a> 20000 && a<26000){ return 2; }else if(a>=26000 && a<49152){ return 3; }else{ return 3; } }