Main Wiki More details on the Uzebox Tutorials to help get started Downloads the project files Help forums
Follow Uzebox on Facebook Follow Uzebox on Twitter
Digikey Updated Bill Of Material (BOM)
October 23, 2023 at 5:14 pm

An up-to-date version of the Uzebox BOM has been made into a Digikey List to simplify ordering. We have gone through all parts from the old BOM to replace the […]

New game alert: IKD – Atari Combat remake!
August 1, 2023 at 7:32 pm

Dan Macdonald (aka danboid) just released is first game for the Uzebox! IKD is a remake of the tank game from Combat on the Atari 2600, or the Atari Tank […]

New Game Alert: UzeMaze!
March 2, 2023 at 8:28 pm

Jimmy Dansbo just released is first game for the Uzebox! UzeMaze is a port of a game from the Commander X16 retro computer called CX16 Maze. The point of the game is to color […]

New Game Alert: Starduino!
January 12, 2023 at 9:34 pm

Stephane Hockenhull (aka rv6502) released his first game on the Uzebox! Starduino is a port of the game of the same same from the Arduboy platform. It’s a 3D rail […]

New Game Alert: Hat Trick!
March 4, 2022 at 6:50 pm

Kilo just released his latest game! Hat Trick is a port of the famous Commodore 64 game. It supports one-on-one action with multiple difficulty levels. Check out the forum post […]

More News...
About

The Uzebox is a retro-minimalist 8-bit open source game console. It is based on an AVR 8-bit general purpose microcontroller made by Atmel. The particularity of the system is that it uses an interrupt driven kernel and has no frame buffer. Functions such as video signal generation, tile rendering and music mixing is done in realtime by a background task so your game can easily be developed in C. The design goal was to be as simple as possible yet have good enough sound and graphics to implement interesting games. Emphasis was put on making it easy and fun to assemble and program for any hobbyists. The final design contains only two chips: an ATmega644 and an AD725 RGB-to-NTSC converter.

Current Features
  • Low parts count and cost: The system is made of only two chips and discrete components.
  • Interrupt driven kernel: No cycle counting required, sound mixing and video generation are all made in the background.
  • 256 simultaneous colors: Accomplished by using a simple weighted resistor video DAC.
  • 5 channels sound engine: The sound subsystem is composed of 3 wavetable channels, 1 noise channel and 1 PCM channel mixed at 15.7Khz.
  • MIDI In: With a music sequencer, allows the creation of music directly on the console.
  • Retro controllers: The joypad inputs uses standard NES/SNES controllers interface.
  • SNES Mouse Support
  • SD/MicroSD card interface
  • Expandable: I/O lines and peripherals are still available, like the UART and SPI port for one to experiment.
  • Emulator: A fully cycle-perfect emulator (CUzebox)
  • Gameloader: 4K Bootloader that loads and flash games stored on SD cards!
  • API: Develop games using an API that provides multiple video modes, sound driver and more.
  • Open Source: The software and hardware design are totally free and licensed under the GPL.
Specifications

CPU: ATmega644 microcontroller
Total RAM: 4K
Program Memory: 64K
Speed: 28.61818Mhz (Overclocked)
Colors: 256 simultaneous colors arranged in a 3:3:2 color space (Red:3 bits, Green:3 bits, Blue: 2 bits)
Resolution: Up to 360x224 pixels (tiles-only and tiles-and-sprites modes)
Sprites: 32+ simultaneous sprites on screen (depending on video mode)
Video output: NTSC Composite and S-Video (Works without changes on most PAL/SECAM TVs)
Sound: 5 channels, 8-bit mono, mixed at ~15Khz and output via PWM
Inputs: Two NES/SNES compatible joypad inputs, SNES Mouse
Options: MIDI-in interface, Uzenet interface (ESP8266 wifi modules + 128K External RAM)

Showcase

These videos demonstrates some of the features of the Uzebox. The first one is a Tetris clone named "AVR Megatris". The game is fully functional and implements most of the official "Super Rotation System" (SRS) system complete with hold block, t-spins and ghost piece...it even plays classic Tetris songs!

Megatris Movie Uzebox AVCore Movie ESD Attack Movie Moon Patrol Movie Halloween Demo Movie Music Engine Demo Video Player Demo Uzebox Games Recap
Buy Uzebox Kit at Adafruit
Buy EUzebox Kit
Download latest versions  
UzeMaze Thumbnail
UzeMaze Title
JimmyDansbo

Download...
Circuit Maze Thumbnail
Circuit Maze Title
Matt Pandina (Artcfox)

Download...
FOAD Thumb
FOAD Title
Jubatian

Download...
Ruby Crush Thumbnail
Ruby Crush Title
Adrastos

Download...
Donkey Kong Thumbnail
Donkey Kong Title
Paul McPhee

Download...
Thumbnail
Title
Lawrence Brooks

Download...
Thumbnail
Title
Lawrence Brooks

Download...
Uzewars Thumb
Uzewars Title
Stache

Download...
Video Poker Thumb
Video Poker Title
Jim Croskell

Download...
Corrida_Nebososa Thumb
Corrida_Nebososa Title
Flavio Zavan

Download...
holeymoley Thumb
holeymoley Title
Ellipsis

Download...

All Games and Demos...


GPL V3 Logo Creative Commons Logo
Copyright (c) 2008-2021 Belogic (tm)
The Uzebox (including source code and hardware design) is released under the GNU GPL 3.0 Public Licence.
Pictures and content of this site is licensed under a Creative Commons Attribution-Share Alike 3.0 Unported License.
Uzebox is a reserved trademark.