Hi guys in this instructables we will learn how to make a game Controller using an Arduino pro micro.

Step 1: Things We Need

For this instructables we need following things :

Arduino pro micro (Arduino Leonardo will also work) :

10 push buttons

Order PCBs from any manufacturer

usb Cable for Programming

Step 2: Schmatics and Making PCB

Well for contacting Everything together i will make a PCB out of it. I am using Fritzing for this.

If you want to download PCB gerber schmatics and code refer the below link. :

Download code, schmatics, gerber :

https://github.com/shveytank/Arduino-Game-Controll...

Step 3: Send PCB for Production

After getting Gerber file of pcb place a order with any PCB manufacturer, i placed my order with UTSOURCE. You can go whoever you like and Upload the gerber and get your PCBs.
Ut source pcb : https://www.utsource.net/Home/PCBService

Step 4: Assemble the Components

After getting your PCB you need to solder all the components on the board. Solder pin headers to hold the arduino pro micro on the board and then solder all 10 push button switches for power purpose.

Step 5: Coding

After soldering everything on the Pcb copy the following code and upload it to your arduino board :

#include "Keyboard.h"
// These are used as indices to other arrays
enum {
UP,
RIGHT,
DOWN,
LEFT,
A,
Z,
X,
S,
SELECT,
START,
// Number of keys
NUM_KEYS,
};

// Maps button index to digital pin
const int PINS[] = {
2, // UP
3, // RIGHT
4, // DOWN
5, // LEFT
14, // A
10, // Z
16, // X
15, // S
9, // SELECT
8, // START
};

// Maps button to keyboard key
const char KEYS[] = {
KEY_UP_ARROW, // UP
KEY_RIGHT_ARROW, // RIGHT
KEY_DOWN_ARROW, // DOWN
KEY_LEFT_ARROW, // LEFT
'a', // A
'z', // Z
'x', // X
's', // S
KEY_RETURN, // SELECT
' ', // START
};

// Store previous state of keys
bool STATES[NUM_KEYS];

// Left and right LED pins
#define LED0 7
#define LED1 6

// Initialize
void setup() {
Keyboard.begin();
for (int i = 0; i < NUM_KEYS; i++) {
pinMode(PINS[i], INPUT_PULLUP);
STATES[i] = digitalRead(PINS[i]);
}
pinMode(LED0, OUTPUT);
pinMode(LED1, OUTPUT);
}

// Main loop
void loop() {
bool state;
// Flash LEDs
const unsigned long t = millis();
digitalWrite(LED0, (t / 1000) % 2 == 0 ? HIGH : LOW);
digitalWrite(LED1, (t / 1000) % 2 == 0 ? LOW : HIGH);
// Process each key
for (int i = 0; i < NUM_KEYS; i++) {
state = digitalRead(PINS[i]);
if (STATES[i] != state) {
if (state == LOW) {
Keyboard.press(KEYS[i]);
} else {
Keyboard.release(KEYS[i]);
}
STATES[i] = state;
}
}
}

Step 6: Playing Games

After Uploading of code connect it to PC via USB cable and open any game of your choice well i am playing tekken here for instance and it work like a charm.