2024 Business Card Contest | Hackaday.io

88 projects

It's cool to make a project on top of FR4, but why not try on a paper?

Back-to-basics paper business card

lincoln-uehara Lincoln Uehara

A circuit in the business card form factor that uses persistence of vision and hand actuation to scroll contact information using LEDs.

Persistence of Vision Business Card

dtw-projects DTW Projects

MidiCard is a USB-C Midi Keyboard with 18 keys, sustain, modulation, octave buttons, and volume buttons, available at makerproducts.art.

MidiCard USB C Tiny Keyboard

alana-b Alana B

Business Card Meets Retro Gaming

PiCardo

keenan-pinto Keenan Pinto

Second generation of the NFC business card adding audible feedback

Beeping, Blinking Business-card Badge (B4)

A 6-button capacitive macropad on a business card with NFC and an RP2040

Macropad on a Business Card

yspace-labs YSPACE Labs

wifi/ble and nfc connected business card.

dynamic nfc business card

Concept of a business card that can show if stray static voltage is present. Trying to bring down unknown polarity voltage to 5V.

Static Sensing Biz Card

unit-7101856 unit 7101856

A retro emulation system on a <=2mm thick business card, using ideas borrowed from other projects and a sprinkling of insanity...

RetroMedleyCard

Use this to distract your customers. This one will stay on top of their desks instead of getting lost in a drawer.

Integrated Game Business Card

dan-schnur Dan Schnur

A useful tiny gadget!

Tiny mdt

sergio-ghirardelli Sergio Ghirardelli

A PCB badge featuring the iconic brain chip from Terminator 2: Judgment Day

Terminator T-800 Brain Chip Badge

m-bindhammer M. Bindhammer

Slightly less likely to get forgotten at the bottom of recruiter's desk drawer. Much LEDs, very visibly working, such utilitarian.

Businesscard-batterytester

Door entry tools about the size of a credit card.

Credit card door entry tools

A $15 game console the size of a business card that plays multiple games via cartridges.

Game Card

dylan-turner Dylan Turner

a business card that has utility by including lockpick tools

lock pick business card

Learning PCB Design by creating a simple business card with LEDs whose blinking frequency is adjustable.

Naive Business Card

lorenzo-palloni Lorenzo Palloni

A 64K Z80 computher that you cand build by yourself only with perfboards, wires and some components

The Homebrew Handwired Z80 Computer - H2Z80

A serial debug adaptor for the MSP430 Series (or any SBW MCU).

Pi Pico MSP430 Debug Probe

A different take to electronic business cards

Yet Another Business Card

kelu124 kelu124

I have made a simple but feature-rich business card. it has a tic-tac-toe game. let's see how I made this

PCB Bussiness Card With 4*4 Tic Tac Toe Game

Who said only electronic signals can flow through circuits? I used water instead.

Microfluidic Business Card

saren-tasciyan Saren Tasciyan

Classic Atari Punk Console with a 556 Core and 555 timer L.F.O in a portable Format for all your Buzzing Needs

APC Semi-Patchable SynthCard

neil-mundt Neil Mundt

Solar powered business card designed to attract attention on a regular basis.

A Very Annoying Business Card

dead-rat-productions Dead Rat Productions