NESPico

A NES controller USB interface with a Raspberry Pi Pico.

Play your favorite retro games with a slightly modified NES controller. Just get Raspberry Pi Pico, a soldering iron and a few wires and you are golden!!1!

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Building

These instructions are extremely terse, and Linux-based only. For detailed steps, instructions for other platforms, and just in general, we recommend you see Raspberry Pi Pico C/C++ SDK

1. Install CMake (at least version 3.13), and GCC cross compiler

   sudo apt install cmake gcc-arm-none-eabi libnewlib-arm-none-eabi
   

2. Clone this repo and update submodules

   git clone https://github.com/luxedo/NESPico.git
   cd NESPico
   git submodule update --init  # Thou shalt not be --recursive
   cd pico-sdk
   git submodule update --init
   cd ..
   

3. Setup a CMake build directory

   mkdir build
   cd build
   cmake ..
   

4. Make your target from the build directory you created. The build will replace the prebuilt binary

   make
   

PreBuilt

If you don’t want to bother and build the binary yourself, then the latest version is avaliable at bin/nespico.uf2

Pinout

NES <=> RPi Pico connection is as follows:

Fun	NES	Pico
3v3	White	3V3
GND	Brown	Ground
Latch	Orange	GPIO 5
Clock	Red	GPIO 4
Data	Yellow	GPIO 6

Links

• Tiny USB
• Linux Gamepad Specification
• MC14021B - NES Controller shift register
• USB HID Reports Descriptors Tutorial
• Pico HID Gamepad
• NES Controller MicroPython Version
• Arduino NES Controller

License

This program is free software: you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.

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