downloading program

I am trying to load a sketch and I get a message that says error compiling. I got the sketch off of youtube. It is used for a dust collection system in my wood shop.
Im new to this and have no idea what is wrong.
I know the board and software is ok because I can go to the blink program and change the intervals.
Hopefully someone can look at the sketch and tell me if it is missing something. (1.59 KB)

get a message that says error compiling.

That's not all it said, is it?

Post the error message(s)

Please post your code between [code][/code] tags.

Your code:

This script was created by Bob Clagett for I Like To Make Stuff
For more projects, check out

Parts of this sketch were taken from the keypad and servo sample sketches that comes with the keypad and servo libraries.

#include <ctype.h>
#include <Servo.h>
#include <Keypad.h>

const byte servoCount = 6;
const int OPEN_ALL = 100;
const int CLOSE_ALL = 99;
const int openPos = 165;
const int closedPos = 5;

static Servo servoList[servoCount];

const byte ROWS = 4; //four rows
const byte COLS = 3; //three columns
// Define the keymaps.  The blank spot (lower left) is the space character.
char numberKeys[ROWS][COLS] = {
  { '1','2','3'   }
  { '4','5','6'   }
  { '7','8','9'   }
  { ' ','0','#'   }

byte rowPins[ROWS] = { 9,8,7,6 };
byte colPins[COLS] = { 12,11,10 }; 

// Create two new keypads, one is a number pad and the other is a letter pad.
Keypad numpad( makeKeymap(numberKeys), rowPins, colPins, sizeof(rowPins), sizeof(colPins) );

const byte ledPin = 13;                            // Use the LED on pin 13.

void setup() {
  pinMode(6, INPUT);
  pinMode(7, INPUT);
  pinMode(8, INPUT);
  pinMode(9, INPUT);
  pinMode(10, INPUT);
  pinMode(11, INPUT);
  pinMode(12, INPUT);

  pinMode(A0, OUTPUT);
  pinMode(A1, OUTPUT);
  pinMode(A2, OUTPUT);
  pinMode(A3, OUTPUT);
  pinMode(A4, OUTPUT);
  pinMode(A5, OUTPUT);
  numpad.begin( makeKeymap(numberKeys) );
  numpad.addEventListener(keypadEvent_num);  // Add an event listener.
  numpad.setHoldTime(500);                   // Default is 1000mS
 // setServoState(CLOSE_ALL); //reset all servos

char key;
static char virtKey = NO_KEY;      // Stores the last virtual key press. (Alpha keys only)
static char physKey = NO_KEY;      // Stores the last physical key press. (Alpha keys only)
static char buildStr[12];
static byte buildCount;
static byte pressCount;
static byte kpadState;

void loop() {
  key = numpad.getKey( );

// Take care of some special events.
void setServoState(char number) {
  int thisServ = 0;
  int val;
  boolean ignoreAll = false;
  switch (number){
  case '1':
    val = 0;
  case '2':
    val = 1;
  case '3':
    val = 2;
  case '4':
    val = 3;
  case '5':
    val = 4;
  case '6':
    val = 5;
  case '7':
  case '8':
  case '9':
    ignoreAll = true;
    for(thisServ = 0; thisServ < servoCount; thisServ += 1){
      int newPos = 0;
      if(thisServ == val or val == OPEN_ALL){
        newPos = openPos;
      else {
        newPos = closedPos;

void keypadEvent_num( KeypadEvent key ) {
  // in here when using number keypad
  kpadState = numpad.getState();
  swOnState( key );

} // end numbers keypad events

void swOnState( char key ) {
  Serial.print("key = ");

  switch( kpadState ) {
  case PRESSED:

    if (isdigit(key) || key == ' ' || key == '.'){
    if (key == '#') {
      Serial.print("CLOSE ALL");
    if (key == ' ') {
      Serial.print("OPEN ALL");
  case HOLD:
    if (key == '#')  {               // Toggle between keymaps.
    else  {                          // Some key other than '#' was pressed.


  case RELEASED:
  }  // end switch-case
}// end switch on state function

The error messages when I try to compile it:

Binary sketch size: 6,154 bytes (of a 30,720 byte maximum)

That is the "error" most people expect.

that is all it said. I am trying to download the program, but do not he wiring done yet.have

I just tried it again. It says,
Compilation terminated.
Exit status 1
error compiling

Are you sure if you scroll up in the error window there is not a message saying something like fatal error keypad.h ....

If so you need to install the keypad library you are referencing with the #keypad.h line

I copied and pasted this from the error message.
Arduino: 1.6.7 (Windows 7), Board: "Arduino/Genuino Uno"

C:\Users\Owner\AppData\Local\Temp\Temp5_dust\keypadToServo\keypadToServo.ino:11:20: fatal error: Keypad.h: No such file or directory

#include <Keypad.h>


compilation terminated.

exit status 1
Error compiling.

how do I fix it?

Sketch->Include Library->Manage Libraries... Then search for Keypad.

I couldnt find it

read this page and follow instructions for manually installing then

I still dont know what I am doing. Can ya rewrite the sketch with the keypad included and send it to me. I just dont understand it.

you need to add the library to the arduino programming interface.
Sketch->Include Library->Manage Libraries... Then search for Keypad.

i just searched and it is there. you must launch library manager then put keypad in search within library manager.

the code compiles does not need rewritten

Thank you very much. I got it to load. I was beginning to think it was a waste of money

cool glad I could help, feel free to add karma to my profile :slight_smile: