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The PictoChat Protocol Adapter package (PCPA)

License: GNU General Public License v3.0

C 100.00%

joke nintendo nintendo-ds

pictochat's Introduction

PictoChat Protocol Adapter

The PictoChat Protocol Adapter (PCPA) set of tools is designed to interact with the Nintendo DS PictoChat protocol, via a compatible Prism54 USB WiFi adapter.

Distribution

The core pcpa library allows for a computer to send and receive black-and-white bitmap data to a PictoChat chatroom. When active, the PC is counted as a connected user.

The pctt library (PictoChat Text Toolkit) allows recognition and exchange of plain text through PictoChat, by recognizing the standard PictoChat font. When recognition fails, pctt falls back to bitmap data by default.

Build process

This project not being ready for release yet, there is no official build toolchain for the moment.

Why it exists

A while ago, a piece of software called pictosniff was created, which allowed users to decode incoming PictoChat messages, but not to interact with them. This library re-uses code from pictosniff, which is courtesy of Sebastien Bourdeauducq under the GNU GPL.

Where I can get a Prism54 WiFi adapter

~~The official Nintendo USB WiFi adapter is powered by the Prism54 chipset, the same which can be found inside of a Nintendo DS, DSi and 3DS.~~ Should be easy enough to find by looking for "Prism54" on Amazon. Bought an official Nintendo USB WiFi adapter and realized I'm a dunce and it, in fact, can't sniff PictoChat packets. Development is paused until I decide to buy another Prism54 dongle and actually test things out. 🤦‍♂️

Starting point for contributing

If you want to participate to the development of PCPA, you will need the following things:

A Nintendo DS/DSi/3DS with PictoChat (duh)
A PC with Linux 4.18 or more recent
A Prism54 WiFi adapter
Wireshark, or any other packet sniffing tool
A recent version of the gcc C compiler

pictochat's People

Contributors

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nikillpop deathzombee mtburnes crappygamingxd adam-clrk origamiengineer

pictochat's Issues

Use ESP32 as a hardware base

Hi!

I wonder if a microcontroller platform such as an ESP32 devkit where you can recieve (and send - https://github.com/Jeija/esp32-80211-tx) arbitrary IEEE 802.11 would be a good start for a project like yours.

So you would have full control over the hardware and could still implement a top-level API for serial or USB, communication that then would allow for platform independent clients...

Implement first API

This is the main issue tracking development on the PCPA library. By the time this issue is fixed, at least the PictoChat sniffer and spoofer should be able to work, even if on one channel only.

Requirements:

Buy a Prism54 WiFi adapter (#1)
Test and clean up PictoSniff code (#2)
Reverse-engineer PictoChat message generation
Send a PictoChat to a real Nintendo DS
Document everything so far using Doxygen

Extra objectives:

Reverse-engineer all four PictoChat channels
Successfully send and receive messages on all four channels
Base the library on ESP32 (#5)

This issue will not be worked on until #2 is closed.

Extend to become a Ni-Fi library

Okay, this is very far-fetched but since I suspect the PictoChat procotol to depend on Ni-Fi sessions (like DS Multiplayer games), this library could become a starting point to reverse-engineering all of the DS's Ni-Fi protocols (imagine, homebrew Download Play games from PC) if it becomes developed enough.

Clean up PictoSniff code build process and bind it to the library

A good starting point would be to extract the necessary code from pictosniff and export it as a working dynamic library, within a nice little toolchain (I'm thinking CMake).

Since I first need to test out the code in order to clean it up, this issue is blocked by #1

[Personal tracker] Buy a Prism54 WiFi adapter

Yep, I'm an idiot and bought an official Nintendo Wi-Fi dongle, thinking it would run on Prism54. Turns out it can sniff packets, just not the ones sent by Ni-Fi/PictoChat. I'll be closing this bug when I get around to buying a compatible Wi-Fi adapter and make the original pictosniff work on it.

Did you drop this project?

I think it's an interesting project. I wanted to connect pictochat with discord too so doing some research I found your project and I'm wondering why you droped it. Anyways, I'll get a 2nd DS in a couple days to start sniffing pictochat messages and find out how they works.

Cheers!

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