Electrocard

Description

Ever since I have my own company I wanted to have a PCB business card. Of course I wouldn’t be the first, but it would definitely give a nice touch to my company’s identity. And since I wanted to give KiCad a good try anyway, why not go for it?

Of course it’s fun to just make a fake pcb layout, but it would be even better if an assembled version of my business card really had some nice features. Since I managed to get a bare SSD1306 OLED working, there wasn’t any excuse to not accommodate the business card with an OLED display.

I wanted to add a nice easter egg. I already programmed Pong once. But with the 3 push switches and the width 128x32 pixel screen, i reckon Tetris was better suited. Or to be more precise: horizontal Tetris. The added benefit of tetris is that it doesn’t need a high frame rate. And honestly, seeing such a cute little Tetris game on a business card, brings a smile to most people’s faces. :)

Files

play.gif Graphics Interchange Format - 1.66 MB - 12/30/2017 at 19:31		Preview

Components

1 × ATTINY85 Microprocessors, Microcontrollers, DSPs / ARM, RISC-Based Microcontrollers
1 × SSD1306 OLED
1 × 2032 COIN CELL

Discussions

nmohandnasser26 wrote 08/10/2021 at 11:54

This one of the best and unique ideas here on this forum and I support you to continuo working on this amazing idea I am also working on a very unique business guide idea you can see here.

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D Kearns wrote 07/03/2018 at 20:57

I know adding holes to a PCB raises costs. Cutouts for the display, switches and the battery (moved to the edge for insertion/ removal) could make for a super-thin build. Switch to a CR2016 and you get even thinner. The display could be sandwiched between two clear stickers for durability. The hardest part I see would be sourcing a mid-board battery holder. Just more V2 options. The new ATTiny1607 has micro-power and some more IO at a lower price point (i'm seeing sleep with a cap-sense wake ISR). This build is still very nice.

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Michael Teeuw wrote 07/04/2018 at 07:10

These are all valid options, but keep in mind that the unpopulated board is my default business card. Real prospects get the populated version. For the unpopulated version is better to have a "solid" version. :)

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Vincent wrote 07/18/2018 at 00:22

What Are you selling? We definitely have to meet Michael! =)

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eekster wrote 01/24/2018 at 19:38

Don't know much about electronics, but could you add 2 more buttons or is there not enough pins on the chip? Something like those 99-in-1 brick games from the 90s would be fun! Also does it work on 128x64 OLED?

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Michael Teeuw wrote 02/09/2018 at 19:01

I used all the available pins. There are some tricks to add more. Or I could switch to the ATTINY84 which has a few more pins. The biggest issue is memory. I wrote a blogpost about this if you are interested: http://michaelteeuw.nl/post/164184894587/electrocard-part-3-writing-the-software

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janussanders wrote 01/20/2018 at 18:55

Is there any way you can post the Kicad footprint and 3D model for the SSD1306 128x32 Oled display? I'm inspired by your project and would like to try and create my own.

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Michael Teeuw wrote 01/22/2018 at 13:56

Here you go: https://github.com/MichMich/KiCad-SSD1306_OLED-0.91-128x32

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janussanders wrote 01/23/2018 at 18:46

Thank you. Again, I'm inspired by your work!

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Vishnu Mohanan wrote 01/13/2018 at 07:32

Just beautiful <3

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Michael Teeuw wrote 01/22/2018 at 13:56

Thanks! :)

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Trey Keown wrote 01/11/2018 at 02:40

Mind if I ask how much this costs? I'm building an interactive business card at the moment myself, but I'm hesitant to do too much due to the cost.

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Michael Teeuw wrote 01/22/2018 at 13:58

The PCB itself is about $1 a piece. When you add all the components, it's about $8 total. I mostly used components sourced from AliExpress. It's a hell of al to cheaper than any other marketing campaign, an it's sure as hell effective: people don't throw away this card, and tend to show it to others (coworkers and business contacts).

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michael24h wrote 01/10/2018 at 18:44

Very Nice ;-)

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Michael Teeuw wrote 01/22/2018 at 13:58

Thanks! :)

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janussanders wrote 01/10/2018 at 18:41

Great job!

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Michael Teeuw wrote 01/22/2018 at 13:58

Thank you! :)

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Mike Szczys wrote 01/09/2018 at 16:10

Wow, that screen looks really great. Nice job on this project!

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Michael Teeuw wrote 01/22/2018 at 13:58

Thanks! I appreciate it.

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Richard Hogben wrote 01/04/2018 at 23:24

Nice business card. A version with a hole for a lanyard would make a nice conference badge too!

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Michael Teeuw wrote 01/22/2018 at 13:59

Thanks! Nice idea! I'll keep it in mind for v2. :)

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Electrocard

Description

Files

play.gif

Components

Discussions

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