English · Português (Brasil)

ChatDeConversa

A multi-protocol chat application in Python, built as a hands-on project for the Computer Science program at IFSC (Federal Institute of Santa Catarina, Brazil).

The main app is a group chat over UDP multicast with a WhatsApp-style interface built in Tkinter: an entry screen with name, group and port, and a conversation view with bubbles, a colour per sender, timestamps and blue double checks once your message reaches the group. There is no server: each message goes straight to everyone on the local network who joined the same group (default 239.255.0.1, port 5000). The other modules explore two more protocols: client/server file transfer and an IoT client/server pair configured per branch office.

 

_{The interface text is in Portuguese.}

How the interface works

• Bubbles drawn on a Canvas, with rounded corners and a tail on the sender's side.
• Blue double checks: every message carries an id; when the multicast echo comes back to the sender, ✓ turns into ✓✓.
• Thread-safe: the network thread only puts incoming messages on a queue.Queue; the UI drains the queue with after() and never touches Tkinter from another thread.
• Backward compatible with the old message format (date, time, username, message); the new fields (id, client) are optional.
• Sharp on scaled displays (Windows at 125% or 150%).

Modules

Folder	What it does
MainChat.py	Entry point: opens the chat.
chat/	ChatApp.py: the WhatsApp-style UI and the multicast networking (sending, threaded receiving, delivery checks).
ftp/	FileServer.py and FileClient.py, sending and receiving files over sockets.
iot/	IoTServer.py and IoTClient.py, with per-branch JSON configs.

Technologies

• Python with the standard library only: socket, threading, queue, json, tkinter
• UDP multicast for the group chat
• TCP for file transfer and UDP for the IoT module

Running it

git clone https://github.com/KaioHomem/ChatDeConversa.git
cd ChatDeConversa
python MainChat.py

Open it on two machines (or two terminals) on the same network, join the same group and port, and chat.

Author

Kaio Felipe Homem · Portfolio · GitHub

_{Academic project · IFSC · Computer Science}