[resolved] error: 'Keypad' does not name a type - Default Sketch

Projects Programming
1

was directory library wrong

Good Afternoon,
using the default sketch of Keypad received the error in Object this is the code,

#include <Keypad.h>

const byte ROWS = 4; //four rows
const byte COLS = 4; //four columns
//define the cymbols on the buttons of the keypads
char hexaKeys[ROWS][COLS] = {
  {'0','1','2','3'},
  {'4','5','6','7'},
  {'8','9','A','B'},
  {'C','D','E','F'}
};
byte rowPins[ROWS] = {3, 2, 1, 0}; //connect to the row pinouts of the keypad
byte colPins[COLS] = {7, 6, 5, 4}; //connect to the column pinouts of the keypad

//initialize an instance of class NewKeypad
Keypad customKeypad=Keypad( makeKeymap(hexaKeys), rowPins, colPins, ROWS, COLS); 

void setup(){
  Serial.begin(9600);
}
  
void loop(){
  char customKey = customKeypad.getKey();
  
  if (customKey){
    Serial.println(customKey);
  }
}

could you help me ?

Thanks
gnux

2

Sounds like the Keypad library is not installed properly or perhaps there is another library that contains a Keypad.h and it is getting picked by accident.

3

Look in your libraries folder. It seems to me that you have "double included" the library. That it, the directory looks like:

Arduino\libraries\keypad\keypad\keypad.h // and the rest of the library files...

when it should look like:

Arduino\libraries\keypad\keypad.h