15 lines
188 B
C++
15 lines
188 B
C++
#include <Arduino.h>
|
|
|
|
#define MQ7_A0 34
|
|
#define MQ7_D0 35
|
|
#define R0 20000
|
|
#define RL 10000
|
|
|
|
struct MQ7Data_t
|
|
{
|
|
float co;
|
|
bool threshold;
|
|
};
|
|
|
|
void MQ7_Init();
|
|
MQ7Data_t MQ7_Read(); |