SConE

SNES Controller Emulator using Arduino (Uno)

Overview

This is a basic SNES controller emulator written for the Arduino Uno.

I got the timing data from this Pinouts & Protocol FAQ on gamefaqs.com. I've extracted some of the important details to snes-flow.md.

Pin Assignments

Pin	Purpose	Pin Mode
A0	Data Latch	INPUT
A1	Data Clock	INPUT
A2	Serial Data	OUTPUT
2	Button B	INPUT Pull-Up
3	Button Y	INPUT Pull-Up
4	Button Select	INPUT Pull-Up
5	Button Start	INPUT Pull-Up
6	Pad UP	INPUT Pull-Up
7	Pad Down	INPUT Pull-Up
8	Pad Left	INPUT Pull-Up
9	Pad Right	INPUT Pull-Up
10	Button A	INPUT Pull-Up
11	Button X	INPUT Pull-Up
12	Button L	INPUT Pull-Up
13	Button R	INPUT Pull-Up

Building

I'm using platformio to build and deploy the code simply so I didn't have to use the Arduino IDE. Instructions for how to install and set it up can be found on their site. platformio.ini contains the configuration for platformio.

Reading Buttons

When reading buttons, keep in mind that if a pin is HIGH, the button is not pressed. When a pin reads LOW, the pin is pressed.

Future Plans

I'm also planning to provide data over USB using the UnoJoy project, which is where the files in UnoJoy/ come from.

This will depend on 2 things: