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2 layers86 × 54 mmHackercard, the printed circuit board in 3D

An NFC Business Card that will lead to my socials

Size
86 × 54 mm
Copper layers
2
Thickness
1.6 mm
Parts
11
Nets
8
Pads
16
Tracks, vias
35, 4
Routed
Yes
KiCad
KiCad 10.0 (file 20260206)
Created
23 May 2026
Updated
7 Jul 2026

Overview

Hackercard is an open-source printed circuit board by RR-CREATOR, from the RR-CREATOR/NFC-Card repository on GitHub, published under the MIT licence. It is a 2-layer board of 86 × 54 mm with 11 parts on 8 nets, routed with 35 tracks and 4 vias.

It is built around the NT3H2111W0FHKH. Its parts include 1 capacitor, 1 resistor, 1 IC, 1 diode and 1 inductor. It belongs with the radio and wireless boards of this library.

Main components

1

README

README.md

RRcard

RRcard is my NFC business card / hacker card. It uses an NT3H2111 NFC chip with a PCB antenna, so tapping it with a phone can open my links without needing a QR code or typing anything manually.

I made this because normal business cards are kinda boring, and I wanted something that felt more like a PCB project than paper with text on it. I also wanted an excuse to KiCad, fight NFC antenna math, and see if I could get a tiny board fab-ready.

Pictures

Full 3D model

Full 3D model front

Full 3D model back

PCB

PCB layout

PCB front

PCB back

Schematic

Schematic

PCB design files

The KiCad files are in PCB design files.

The JLCPCB production files are in PCB design files/jlcpcb/production_files.

JLCPCB order cost

The final JLCPCB cart total came out to $21.78 USD.

JLCPCB cart total

BOM

CommentDesignatorFootprintLCSC Part #Quantity
805LED1C2296_LED0805-R-RDC842561
220nFC1C_0603_1608MetricC211201
47R1R_0603_1608MetricC231821
NT3H2111W0FHKHU1C710403_XQFN-8_L1_6-W1_6-P0_50-BL_NT3H2111W0FHKHC7104031

Parts

11
QtyValueFootprintReferences
6LOGOLOGOG***, G***, G***, G***, G***, G***
10805lcsc_footprints:C2296_LED0805-R-RDLED1
1220nFCapacitor_SMD:C_0603_1608MetricC1
147Resistor_SMD:R_0603_1608MetricR1
1AntennaPCB Coils:antenna_coilL1
1NT3H2111W0FHKHlcsc_footprints:C710403_XQFN-8_L1_6-W1_6-P0_50-BL_NT3H2111W0FHKHU1

Questions

How big is the Hackercard PCB?

It measures 86 × 54 mm and has 2 copper layers, 1.6 mm thick.

What parts does the Hackercard use?

11 parts, built around the NT3H2111W0FHKH. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the Hackercard KiCad files?

From the RR-CREATOR/NFC-Card repository on GitHub, at the commit this page was made from: the board is PCB design files/hackercard.kicad_pcb and its schematic PCB design files/hackercard.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Hackercard design in my own project?

Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).

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