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38 projects
72
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A business card with a charlieplexed realtime clock and an ATtiny3227 development board.
Project Owner Contributor

Business Card + Clock + ATtiny3227 Dev Board

cheetahhenrycheetah_henry

2.9k
25
33
'70s microcomputer meets '80s handheld game
Project Owner Contributor

Blinkencard - Pocket Altair 8800

ajlittajlitt

1.5k
12
16
A $15 game console the size of a business card that plays multiple games via cartridges.
Project Owner Contributor

Game Card

dylan-turnerDylan Turner

1.2k
4
6
Building a charlieplexed 6x6 LED display (with Raspberry Pi Pico) business card
Project Owner Contributor

Charlieplexing Pi Pico business card

clovis-fritzenClovis Fritzen

0
0
A dirt-cheap hardware to carry out voltage glitching attacks against microcontrollers with a Raspberry Pi Pico
Project Owner Contributor

PicoGlitcher

matthias-kesenheimerMatthias Kesenheimer

0
0
The topic focuses on the design and construction of a real-time air quality monitoring system based on IoT
Project Owner Contributor

AirSENSE Mobile PCB

tuyen-le-chiTuyen Le Chi

301
2
4
A robot that avoids obstacles, of the size of a business card (without motors and wheels).
Project Owner Contributor

Business card robot

m-bindhammerM. Bindhammer

2k
10
11
Yet another overly engineered business card, that probably I would never give a way, because it is too expensive.
Project Owner Contributor

Electronic CV

dimitarDimitar

175
1
1
Classic Atari Punk Console with a 556 Core and 555 timer L.F.O in a portable Format for all your Buzzing Needs
Project Owner Contributor

Atari Punk Console Semi-Patchable SynthCard

neil-mundtNeil Mundt

859
5
5
A different take to electronic business cards
Project Owner Contributor

Yet Another Business Card

kelu124kelu124

51
0
1
Business card that generates Morse code SOS signal using discrete logic components.
Project Owner Contributor

SOS Business Card

martynasMartynas

1.6k
8
9
Second generation of the NFC business card adding audible feedback
Project Owner Contributor

Beeping, Blinking Business-card Badge (B4)

greggreg

201
1
1
a business card that has utility by including lockpick tools
Project Owner Contributor

lock pick business card

jeffjeff

103
3
2
wifi/ble and nfc connected business card.
Project Owner Contributor

dynamic nfc business card

0x0630ff0x0630ff

566
9
11
Create and build your own business card on a PCB with NFC capability
Project Owner Contributor

nfc business card

ziv-barcesatZiv Barcesat

1
1
A 6-button capacitive macropad on a business card with NFC and an RP2040
Project Owner Contributor

Macropad on a Business Card

yspace-labsYSPACE Labs

232
2
3
Test your partner, is in love with you
Project Owner Contributor

Dr. Love: a Game of Love Detection

un-kyu-leeUn Kyu Lee

57
0
0
A powerful power supplier board for your Bread Board and other electronics project. Multi input, including Type-C,DC3.5 ,Li-Bat. Super wide
Project Owner Contributor

Zero Multi-Power Supply V3.0 for Bread Board

toneyToney

63
1
3
I have made a simple but feature-rich business card. it has a tic-tac-toe game. let's see how I made this
Project Owner Contributor

PCB Bussiness Card With 4*4 Tic Tac Toe Game

escesc

0
0
Fast creation to celebrate children day - because all of us have child soul
Project Owner Contributor

Buisnes card for children day

satanistiksatanistik

218
0
0
The OpenCTD is a low-cost, open-source oceanographic instrument. This calling card helps you build your OpenCTD by providing a test bench.
Project Owner Contributor

A calling card for oceanographers

andrewdavidthalerandrew.david.thaler

630
6
9
A full keyboard development board for learning programming languages such as CircuitPython, MicroPython, C++, uLisp, etc
Project Owner Contributor

LangCard

makerm0MakerM0

1.3k
7
16
Use this to distract your customers. This one will stay on top of their desks instead of getting lost in a drawer.
Project Owner Contributor

Integrated Game Business Card

dan-schnurDan Schnur

231
0
0
LEGO compatible, business card sized, I2C enable, BLE controlled robot controller.
Project Owner Contributor

LEGO Robotic Controller

adanAdan

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