Arduino falling edge

int button = 2;
int flag;
int readbutton;
void setup(){}
void loop(){
  readbutton = digitalRead(button);
  if(readbutton>flag){
  //your code here
  flag=readbutton;
}
if(readbutton==0){
flag=0;
}

Similar codes

5 votes185 views5 answers
How to convert char to int in c++
C++
0 vote181 views1 answer
Std::map get all keys
C++
2 votes191 views1 answer
Disable a warning in visual c++
C++
0 vote180 views1 answer
Compile notepad++ c++
C++
1 vote234 views1 answer
Every number is coming thrice except one
C++
3 votes192 views3 answers
C++ class
C++
0 vote189 views1 answer
Vector of shared_ptr c++ push_back
C++
0 vote181 views1 answer
Check if cin didn't get int
C++
0 vote181 views1 answer
Restart the computer in c++ after the default time (30) seconds. (Windows)
C++
0 vote208 views1 answer
Passing 2d array by reference c++
C++