The 1kB Challenge | Hackaday.io

134 projects

A classic 3x3x3 LED cube powered by a PIC 16F84A with built-in MUSIC BEAT DETECTION!

Music LEDCUBE 3x3x3

Wearable cat ears that move

Mechatronic Ears

Radomir Dopieralski

Recycled an old phone. It was weird when I got it, now it is weirder.

GTE Automatic Electric Rotary Colorwheel

A chess game for Atari VCS/2600 with AI self-contained in 1K

Toledo Atomchess for Atari VCS/2600

Small program generates frequencies can be used to tune a short wave receiver to NAVTEX frequencies.

NAVTEX finder

Full blown RTOS written in Thumb ARM assembly language to fit in 1024 bytes

M0S - CortexM0 RTOS in 1024 bytes

Simple scalar (V/f) inverter of induction motor, using the 8051 in PWM technique

8051 V/f inverter of induction motor

How to control the 7 LEDs of a die with only 2 GPIO - a miniaturized electronic die based on ATtiny10.

Dice10

The incredible flickering LED!(Okay, it's more about what I learned)

MightyLight

Audi Dynamic Turn Signal

Audi Dynamic Turn Signal

A cable-less connection for stepper motor control, using Forth

ESP8266 Stepper Driver

Falling blocks game on the ATtiny 13A

μTris: ATtiny13A Tetris

The 2017 Hackaday Prize

A simple desk clock that gets time from GPS

GPS Clock

Reimplementation of the retro game Space Invaders in an attiny for the 1 Kb Challenge

1Kb Space Invaders

1kB TFTP Ethernet bootloader for ATmega328P and ENC28J60

kiloboot

A game of Pong running in the internal 128 bytes of RAM.

RAM Pong (Atari 2600 game)

Thomas Jentzsch

The 2017 Hackaday Prize

I like to make cheap joy stick for all gaming and application purpose in Computer for my child. By jump and move around she play drums.

Full function Wireless joystick Rug for PC

This is moon simulator which with silhouette of Bat (for Halloween) or Reindeer (for winter)

Moon Phase Simulator for Halloween Decor

Creation of a digital trap to help the fight against mosquito´s spreading.

Digital Trap

Standalone charger for PlayStation 3 controllers

PS3 Charger

Tetris game on ATmega8 with LCD display

ATmega Tetris

Grzegorz Pietrusiak

This kind of bus is made up of one programmable Master - ATmega8 and 3 ( max. possible 255 ) Slaves - ATtiny13 parallel connected to master.

3-Wire Bus

OK, most drill-presses have "force-feedback" in the normal sense... so this is a bit ridiculous.

drillPresseur - Drill-Press with Force-Feedback

One blinky to rule them all: ARM, AVR, 8051 (?MSP430)

Polyglot: One binary multiple architectures

A seven segment LED display clock, immersed in mineral oil.

JAR Clock

Simon game implemented on PIC10F202

PocketSimon

The 2017 Hackaday Prize

The R2Pv1-OmniBot1 a robot platform for beginners after learning how to make the miniFloppyBots

R2Pv1-OmniBot1

Switches three channels on and off using any IR transmit device, with self-learning IR codes

IR receiver and 3 channel switch

Gerhard Schmidt

ATtiny84-based gamed of life on 8x8 LED matrix with manual setup of 1st generation.

Conway's Game of Life on ATtiny84

Jean-François Poilpret

My implementation of C10 decimal time clock

DC-10

An accelerometer/gyro goes onto an Arduino board and transmits the angular motion of the skateboard via bluetooth to a VR game.

VR Skateboard with Arduino and Google Cardboard

matthewhallberg

When you're running out of code-space... sometimes yah's gots to hack. Here are some ideas.

limited-code hacks/ideas

The 2017 Hackaday Prize

Let's use 1-dollar 8-pin PIC12C508A that has 512 words of program ROM (that is 768 bytes) and 25 bytes of data RAM...

$1 entry to 1kB challenge

Generate 640x480 64-color VGA graphics with an 8-bit PIC and an SRAM framebuffer

PIC Graphics Demo

The 2017 Hackaday Prize

Firmware version specially for The 1kB Challenge

20F Supercapacitor powered LED wrist watch

Standalone brainf*ck computer in less than 1kB of code

Brainf*cktor

MSP430 and Nordic nRF24L01+ Multiple Transmitter web data logger

nRF24L01+ Web Data Logger

Fixing a broken scale with DIY hardware

DIY Body Scale

An Intel 8048 is used to generate a maze on a memory LCD.

8048 Maze Generator

Alan Boguslawski

It was the early hours of the morning and I had this vision. This crazy wild idea of using the Agfa Clack in a special way – a magical way.

The Medium Format Selfie Stick with the Agfa Clack

Full-featured clone of a famous “Simon” game for training your visual and acoustic memory. Electronic kit simple enough for beginners.

Simon game with ATtiny13

2048 game implemented in 1024 bytes for the 1k contest

2048 in 1024

Yohanes Nugroho

A modern score-attack game, written in 6502 assembly for the venerable BBC Micro.

BBC Micro 50Hz helicopter score attack

A blinky charlieplexed LED Christmas tree ornament. The successor to 2014's xmas_v1 project

xmas_v2

Simple project as an initiation to neural networks

AVR Perceptron (initiation to neural networks)

12-Bar Blues generator in less than 1kB

Blues Generator

The #1kBChallenge inspired me to dust off the Kim-Uno and write an Enigma Z30 simulator. This is a very rare numbers only Enigma Machine.

Mystery 6502 program for the Kim Uno #1kBChallenge

Draw the hackaday logo with a laser with less than 1K of data.

1K Challange Laser

Cyrille Gindreau

A Logic Probe with the usual LEDs and sound output based on an ATTINY26. My entry to the 1k challenge.

Logic probe using ATTINY26

kMouse is a programming language created for the 1kB challenge based on the Mouse language created by Peter Grogono

kMouse Programming Language Interpreter

Trying to fit video game(s) into 1kB without blowing up a TV.

tinygames

A simple project using avr-libc and some cheap peripherals to implement a clock which counts down to a major life event.

My Half Life Clock

Mark VandeWettering

I WANT TO BREATH

Aeroclean

inboxsahil.sahajpal

A small car controlled with an attiny85 and an l293d

Tiny Car

The 2017 Hackaday Prize

RoboToons Robot Theater character showing off the power of the RoboGuts™ circuit board R2Pv1.com

miniPINGbot 1K Byte Demo

Award winning Atari 2600 1K game.

Robot City (Atari 2600 game)

Thomas Jentzsch

Turn the Raspberry Pi into a Wireless AP

ArchWiPi - Raspberry Pi Wireless AP

A small ATtiny85 board playing the Nyan Cat tune.

Nyan Board

Radomir Dopieralski

Within 1 kB of executable code, a LED matrix can be used as a canvas to draw on and a pair of LEDs can be turned into an optical chat.

LEDs as photodiodes for 1 kB challenge

This project shows how to synchronize live music and lights using DSP/DFT in real-time on ATtiny13 which offers only 64B RAM / 1024B FLASH.

ATtiny13 – dance lights with FFT

Łukasz Podkalicki

The 2015 Hackaday Prize

Take a cigarette lighter, an AVR microcontroller (ATtiny13), and an IR LED. Wire all together. Now, you can remotely control your Nikon camera.

Turn a cigarette lighter into an IR Nikon remote

An SD card reader and WAV file player in 1KB of code.

WAV-1K

USB-CDC Serial port for PIC18F, in under 1KiB. Refactored down from a USB-DFU bootloader, hand written in assembler to be light and fast

MicroPort

Using the Attiny817 core independent peripherals to implement an ultrasonic distance sensor entirely in hardware.

Ultrasonic Distance Sensor on Attiny817

amazing slow motion illusion for flowers and feathers

TimeFrame - The Desktop Time-Portal

Flappy Bird with a pixel

tPixel

Three games on a PIC16F1705 \with eight 14- segment displays and a discrete diodes character ROM

Tetradeca - 1KB - 3 games on 14seg displays

The ARMA IoT Shield is a breakout board for Arduino to make IoT projects quickly

IoT shield for Arduino

Precision manual PWM creates visually appealing light patterns in Christmas tree star made from retrofitted Ikea fiber optic light fixture.

Christophanous Radiance Modulator, Model 114B

µfck is a minimal bios including a brainf*ck interpreter for Arduino Uno (ATmega 328p) with the total binary size of less than 1000 bytes.

µfck

Classic artillery game for Arduino

Boom!

96x96 pixels, 8 buttons, a speaker, and 1K operations.

1K-OP

A tiny pixel font rendered to an LCD display, in under 1K program space.

1K LCD Tinyfont

Use an AVR to turn a 10 MHz standard into PPS

Tiny Divider

Capacitive Touch morse code paddle using an ATTiny4 - (126 Bytes)

Tiny CW Capacitive Touch Paddle

Two legs, four servos, ATtiny85 for brains

µBob biped robot

Radomir Dopieralski

Identify the dominant color in random arrangements as quickly as possible

Dominant Amber - A 1KB Atari 2600 game

Alkaline Battery recharger (upto 800% more life)

Battery Destroyer

Catch a Soldering Iron

A transitioning RGB LED, powered by the mighty Attiny85!

AttinyRGB

A weighing scale using a ATmega48, a hx711 ADC and a 1x16 hd44780 display.

Weighing Scale in <1kB Code

A radio controlled melatonin saving lamp

Circadian - Radio control your internal clock!

Cheap and easy hardware implant for sniffing TWI (I2C) busses

Two Wire Sniff

0V - 10V with digital control using common discrete parts.

Adjustable Linear Bench Supply in 1k

A player vs player whack-a-mole style game based on Atmel Assembler

PatschPatsch

The 2017 Hackaday Prize

4x5 micro display with attiny85

Standalone LED micromatrix display

Single pass Lower Temp Toner Transfers. Now available as a DIY kit. Open Source, Dual laminator compatible!

Apache AL13P & TL-320b - One Pass PCB Toner Xfer

Tiny computer OS for 1kB challenge. OKOS is just ok because OKOS is just OK.

One Kilobyte Operating System (OKOS)

finally soldered

DC motor board with attiny13

1K minigame for the Atari 2600

Splatform 2600 (Atari 2600 game)

Thomas Jentzsch

Pseudo Random VGA blinking lights generator

VGA Blinking Lights

The 2017 Hackaday Prize

the robot is controlled with an arduino nano and only uses 2 motors and 2 sensors. The program to control the robot is only 843 bytes big.

1 KB 6 legged crawling bot

This project is an improved Lua SDK, based on ESP-IDF/ESP8266_RTOS_SDK, for Esp32 (comp The hardware , developed by DOIT Team.

LuaNode For ESP32

A really crude adlib tracker implemented as a PC BIOS.

BIOS adlib tracker

michaelschrijver

Cute construction and nice programming of a 16F630 with CALM assembler instructions

Miniature Turtle bot

nicoud jean-daniel

Attempt to compress a 1kb image such that the decompression algorithm, display logic, and the compressed image itself all fit in 1kb.

1kb 6502 Image Compression

Infra-red light dimmer (220V/110V) that sits behind a switch in the wall. Powers itself from the mains, uses triac to turn on the bulb.

IR Light Dimmer v2 (1kB Challenge edition)

A randomized dice using an Adafruit ATTINY85 breakout board, 8x8 LED matrix, and an accelerometer.

Accelerated Dice

It's ESP32 wifi & BT board with Mciro SD card, USB 2 USART Chip cp2104, Compatible with Arudino Interface.

Maple ESP32 - ESP32 WiFi & BT board with Micro SD

An iambic paddle controller for sending Morse code.

1Keyer

Mark VandeWettering

RGB magic with a twist, simple and looks amazing.

Magic Mirror LED Clock

Award winning 1K minigame for the Atari 2600.

Cave 1K (Atari 2600 game)

Thomas Jentzsch

1 kB roguelike using an Arduino and 0.96" OLED

1 kB Arduino Roguelike

USB on an ATtiny10

µ-wire

Snowfall on Linux console

Let it Snow

A breadboarded Z80-CPU running at 4MHz, with 2KiB NVRAM, 8KiB SRAM, a couple IO ports (including a matrixed LED display), and a timer.

Z80 Breadboard Display

The 2016 Hackaday Prize

A project inside Attiny. I will not step out for larger one till I complete it.

Minimalist A-go-go

Print using RS232 on the joystick port of MSX computers

Joy232

This is an electronic dice project that entertaiment aimed which performs a physcial dice pair act in electronic way.

Electronic Dice

erhanyilmaz.ytu

A tiny RC-Switch squeezing out up to 16 bit resolution from the 8 bit timer in an ATtiny85.

ATtiny85 RC-Switch

Daniel - CrowStudio

A rudimentary voice synthesiser in less than 1kB of code.

PICSPEAK

Connect servos to your ESP8266 dev board.

Servo Breakout for WeMos D1 Mini

Radomir Dopieralski

A successful attempt to create a programmer for the Atmel Tiny 4-10 using a Microchip PIC10f200 and few discretes

PIC10f200 Tiny TPI programmer

ESP32 Module with A CP2102 http://www.analoglamb.com/product/esp32-development-board/

ESP32 Development Board

A full program for Z80 Pac-Man arcade hardware in 1k of space, containing Program, ROMs and PROMs.

Pac 1024

Generate VGA out from ATtiny5 with 3 pins

sub-512 byte 8-color VGA demo with ATtiny4/5

Creating interesting graphics on a strand of RGB LEDs using an ATtiny13, with just 64 bytes of RAM and just 1K of flash.

Holiday Blinkenlights in 1K for about a buck

Mark VandeWettering

12F675 - LM35 thermometer (7 segment)

12F675 - LM35 thermometer (7 segment)

I want something usb stick thingy-ish to check a usb cable

USB cable tester

This project aims to unlock the hidden options of the Casio fx-82ES, such as Complex numbers, Matrix and Vector operations and other.

Calculator Hack

A switch mode power supply controlled by an 8051 processor.

Switcher

Ashley Robinson

The 2016 Hackaday Prize

On Click Multiple Image Downloader. An application for downloading multiple image from an url repository text file through python.

O.C.M.I.D

A dice with an ATtiny13 and seven LED, slowly tumbling.

Tumbling dice

Gerhard Schmidt

The goal of this project is to create an 8-bit 32khz class d amplifier, using filterless topology, controlled by an Attiny85

TinyD, 8-bit stereo class D amp from Attiny85

Super NES Brainf*ck Interpreter in (less than) 1kB

SNESF1k

Attempting to get a workable BASIC interpreter in 1k of 8008 assembler code.

8008 1k Tiny BASIC

Atari 2600 Game in 1K

DoubleGap Atari 2600 Game

11 LEDs connected by Charlieplexing to a Arduino with two buttons for two player inputs, and coded with AVR assembly

2D Pong Game using AVR Assembly

This is a Tetris game done in 1024 bytes or less on the Nintendo Gameboy.

1024 byte Tetris

An old 4164 DRAM is used to store the bitmap. An 8-bit PIC microcontroller generates sync and DRAM address signals. Controlled via SPI.

256 by 256 pixel PAL video generator

An ATtiny13 measures a voltage and steps a stepper for- and backwards

Control of a stepper motor with a voltage

Gerhard Schmidt

PlexChar it's a mini led matrix board with tiny controller

PlexChar

Alexander Ryzhkov

A real-time solver for 2D transient heat conduction with isothermal boundary conditions in less than 1 Kb, visualized on an LED board.

2D Heat Conduction Solver

Adam Spontarelli

Using a PIC16F18855 Dev board, TTP223 cap touch IC, and a Keyes 5V relay module for a simple cap touch switch that can turn on anything.

444 Byte CapTouch Switch

A device to monitor plant health, including soil moisture, temperature and ambient light

Great Gardening Green Fingered Gadget