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//**************************************************************//
// Name : SnesTest.ino //
// Author : zv_odd //
// Date : 3 Sep, 2015 //
// Version : 1.0 //
// Notes : Snes Controller Serial Output Tester //
//****************************************************************
//define where your pins are
const int dataPin = 9; // RED
const int latchPin = 8; // YELLOW
const int clockPin = 7; // BLUE
long buttonData, lastButtonData = 72; //01001000
// On NES Controller there are only 8 buttons, also B, Y swap to A and B
const int n_buttons = 12;
char* buttons[] = {"B", "Y", "SELECT", "START",
"UP", "DOWN", "LEFT", "RIGHT",
"A", "X", "L_BUTTON", "R_BUTTON"};
void setup() {
//start serial
Serial.begin(9600);
//define pin modes
pinMode(latchPin, OUTPUT);
pinMode(clockPin, OUTPUT);
pinMode(dataPin, INPUT);
}
void loop() {
// Latch Signal
digitalWrite(latchPin, HIGH);
delayMicroseconds(12);
digitalWrite(latchPin, LOW);
int temp = 0;
buttonData = 0;
for (int i = 0; i < n_buttons; i++)
{
digitalWrite(clockPin, LOW);
delayMicroseconds(0.2);
temp = digitalRead(dataPin);
// 0 Indicates button depressed for SNES controller
if (!temp) {
//temp = size_buttonData - i;
buttonData = buttonData | ((long)1 << i);
}
digitalWrite(clockPin, HIGH);
}
if (buttonData != lastButtonData){
lastButtonData = buttonData;
// Print Raw Value of Registers
Serial.println(buttonData, BIN);
// Print String in Button Name Array
for (int n = 0; n < n_buttons; n++)
{
if (buttonData & (1 << n) ){
Serial.print(buttons[n]);
Serial.print(", ");
}
}
Serial.println("\n-------------------");
}
delay(10);
}
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