Hey guys,
I think this is something eevblog folks would appreciate. Check out my latest PCB business card! It's made out of 2 layer 0.8mm FR4.
This business card has NFC capabilities and features the most common integrated circuit footprints found on circuit boards today. Three rulers of different measure are also included: 1/32in ruler, 1/5mm ruler, 1/10th ruler. A trace width and pin patch gauge are also included, along with the different resistor and diode package sizes. The good news, is it only cost me $0.66 each for 150 of em. That's not terrible considering paper business cards are $0.04-0.06 in quantities of 500. These are Electroless Nickel-Gold plated though. Can't beat that!
Here's a few shots:
Business cards in action:
Circuit:
Layer stackup:
This card was designed in Kicad 5.0. Kicad is free pcb design software that is quite good. I used to use eagle cad to design small pcbs but Kicad now fills that need.
The PCB design files are free to modify for personal use and fall under a creative commons license.
PCB files to make your own are available here:
https://github.com/anthonykouttron/pcb-business-card-qr-nfcFor a complete detailed writeup check this out:
https://salvagedcircuitry.com/pcb-business-cardI'd love feedback from you guys. Let me know what you think!