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@kindfulkirby
Forked from netalkGB/snes.ino
Last active October 5, 2017 14:02
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Digispark SNES controller
#include "DigiJoystick.h"
#define DAT 0
#define PS 1
#define CLK 2
#define PULSE_TIME 3
char buf[8] = {
0x80, 0x80, 0x80, 0x80, 0x80, 0x80,
0x00, 0x00
};
void pulseClock(byte pin) {
digitalWrite(pin, HIGH);
delayMicroseconds(PULSE_TIME);
digitalWrite(pin, LOW);
delayMicroseconds(PULSE_TIME);
}
void setup() {
DigiJoystick.setValues(buf);
DigiJoystick.delay(1);
buf[0] = buf[1] = buf[2] = buf[3] = buf[4] = buf[5] = 0x00;
DigiJoystick.setValues(buf);
DigiJoystick.delay(1);
buf[0] = buf[1] = buf[2] = buf[3] = buf[4] = buf[5] = 0x80;
pinMode(DAT, INPUT);
pinMode(PS, OUTPUT);
pinMode(CLK, OUTPUT);
digitalWrite(PS, LOW);
digitalWrite(CLK, LOW);
}
void loop() {
buf[0] = buf[1] = 0x80;
buf[6] = 0x00;
pulseClock(CLK);
pulseClock(PS);
if (!digitalRead(DAT)) buf[6] |= 0x04;
pulseClock(CLK);
if (!digitalRead(DAT)) buf[6] |= 0x08;
pulseClock(CLK);
if (!digitalRead(DAT)) buf[6] |= 0x80;
pulseClock(CLK);
if (!digitalRead(DAT)) buf[6] |= 0x40;
pulseClock(CLK);
if (!digitalRead(DAT)) buf[1] -= 128;
pulseClock(CLK);
if (!digitalRead(DAT)) buf[1] += 127;
pulseClock(CLK);
if (!digitalRead(DAT)) buf[0] -= 128;
pulseClock(CLK);
if (!digitalRead(DAT)) buf[0] += 127;
pulseClock(CLK);
if (!digitalRead(DAT)) buf[6] |= 0x02;
pulseClock(CLK);
if (!digitalRead(DAT)) buf[6] |= 0x01;
pulseClock(CLK);
if (!digitalRead(DAT)) buf[6] |= 0x10;
pulseClock(CLK);
if (!digitalRead(DAT)) buf[6] |= 0x20;
DigiJoystick.setValues(buf);
DigiJoystick.delay(1);
}
@kindfulkirby
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I added some code to send initial data for all axes, otherwise my Linux PC didn't read them correctly.

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