Hi,
I'm trying to re-install the original code on my Makey Makey, but it's not working. I found two codes. One called makey makey 1.4.1, and the other one here : http://www.instructables.com/id/Carrot-Piano-A-MaKey-MaKey-Project/step2/Reprogramming-the-MaKey-MaKey/
I copied the first code here, and Arduino told me that "num_input" was not declared in the scope..."
#include "Arduino.h"
/*
/////////////////////////////////////////////////////////////////////////
// KEY MAPPINGS: WHICH KEY MAPS TO WHICH PIN ON THE MAKEY MAKEY BOARD? //
/////////////////////////////////////////////////////////////////////////
- edit the keyCodes array below to change the keys sent by the MaKey MaKey for each input
- the comments tell you which input sends that key (for example, by default 'w' is sent by pin D5)
- change the keys by replacing them. for example, you can replace 'w' with any other individual letter,
number, or symbol on your keyboard
- you can also use codes for other keys such as modifier and function keys (see the
the list of additional key codes at the bottom of this file)
*/
int keyCodes[NUM_INPUTS] = {
// top side of the makey makey board
KEY_UP_ARROW, // up arrow pad
KEY_DOWN_ARROW, // down arrow pad
KEY_LEFT_ARROW, // left arrow pad
KEY_RIGHT_ARROW, // right arrow pad
' ', // space button pad
MOUSE_LEFT, // click button pad
// female header on the back left side
'w', // pin D5
'a', // pin D4
's', // pin D3
'd', // pin D2
'f', // pin D1
'g', // pin D0
// female header on the back right side
MOUSE_MOVE_UP, // pin A5
MOUSE_MOVE_DOWN, // pin A4
MOUSE_MOVE_LEFT, // pin A3
MOUSE_MOVE_RIGHT, // pin A2
MOUSE_LEFT, // pin A1
MOUSE_RIGHT // pin A0
};
///////////////////////////
// NOISE CANCELLATION /////
///////////////////////////
#define SWITCH_THRESHOLD_OFFSET_PERC 5 // number between 1 and 49
// larger value protects better against noise oscillations, but makes it harder to press and release
// recommended values are between 2 and 20
// default value is 5
#define SWITCH_THRESHOLD_CENTER_BIAS 55 // number between 1 and 99
// larger value makes it easier to "release" keys, but harder to "press"
// smaller value makes it easier to "press" keys, but harder to "release"
// recommended values are between 30 and 70
// 50 is "middle" 2.5 volt center
// default value is 55
// 100 = 5V (never use this high)
// 0 = 0 V (never use this low
/////////////////////////
// MOUSE MOTION /////////
/////////////////////////
#define MOUSE_MOTION_UPDATE_INTERVAL 35 // how many loops to wait between
// sending mouse motion updates
#define PIXELS_PER_MOUSE_STEP 4 // a larger number will make the mouse
// move faster
#define MOUSE_RAMP_SCALE 150 // Scaling factor for mouse movement ramping
// Lower = more sensitive mouse movement
// Higher = slower ramping of speed
// 0 = Ramping off
#define MOUSE_MAX_PIXELS 10 // Max pixels per step for mouse movement
/*
///////////////////////////
// ADDITIONAL KEY CODES ///
///////////////////////////
- you can use these codes in the keyCodes array above
- to get modifier keys, function keys, etc
KEY_LEFT_CTRL
KEY_LEFT_SHIFT
KEY_LEFT_ALT
KEY_LEFT_GUI
KEY_RIGHT_CTRL
KEY_RIGHT_SHIFT
KEY_RIGHT_ALT
KEY_RIGHT_GUI
KEY_BACKSPACE
KEY_TAB
KEY_RETURN
KEY_ESC
KEY_INSERT
KEY_DELETE
KEY_PAGE_UP
KEY_PAGE_DOWN
KEY_HOME
KEY_END
KEY_CAPS_LOCK
KEY_F1
KEY_F2
KEY_F3
KEY_F4
KEY_F5
KEY_F6
KEY_F7
KEY_F8
KEY_F9
KEY_F10
KEY_F11
KEY_F12
*/
And when I tried to copy the second code, he told me that 'switch_threshold_offset_perc was not declared in this scope". (don't know what it means...)
I am new into coding, don't understand a lot for the moment. I told me maybe in a simple problem solving for people who knew a little more... If you have an idea, please tell me 
Thanks!
