2 layers87.6 × 49.5 mm
NFCBuisnessV3
wrickert/NFCBusiness
Using NFC to create a PCB business card that does not need a battery
21 parts4
2 layers89 × 51 mm
Using NFC to create a PCB business card that does not need a battery
- Size
- 89 × 51 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 32
- Nets
- 29
- Pads
- 88
- Tracks, vias
- 234, 56
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 11 Sep 2018
- Updated
- 25 Mar 2024
Overview
Card is an open-source printed circuit board by wrickert, from the wrickert/NFCBusiness repository on GitHub. It is a 2-layer board of 89 × 51 mm with 32 parts on 29 nets, routed with 234 tracks and 56 vias.
Its parts include 14 diodes, 10 capacitors, 2 connectors, 1 resistor and 1 IC.
README
README.mdNFCBusiness
Overview
In order to stand out to potential employers I wanted to create my own variation on the PCB business card. I wanted my badge to do more than just look intresting. However, batteries are bulky and expensive. With the sheer number of phones equiped with Google pay/apple pay NFC in phones is becoming increasingly common. I think this makes NFC equiped PCB business cards a natural combination.
RF430
This project uses a clever little chip, the RF430FRL154HCRGER. This chip is a variant on TI's MSP430. This one combines a NFC RF front end with a MSP430. We will be programming with a JTAG header and I will be building an accompanying POGO pin programming jig.
D6 CharliePlexing Variant
There is a way to use CharliePlexing to drive seven LEDs with only two GPIO. This does not give you control of individual LEDs, but works in convient pairs for displaying dice values.
Programming Jig
Created a programming Jig that uses POGO pins, https://www.digikey.com/product-detail/en/mill-max-manufacturing-corp/0906-0-15-20-76-14-11-0/ED8180-ND
This consists of two different PCBs that can all be stacked to reach the desired result
Status
1Jan2019 - Completed and ordered version 1
17Jan2019 - IT WORKS! While the antenna leaves much to be desired it is good enough to register on my phone! Need to improve antenna and create programming jig.
18Jan2019 - Fixed issues, created new PCB antenna, ordered version 2
19Jan2019 - Found issue with V2, created V2a. Completed V1 Programming Jig and ordered from JLCPCB.
Parts
32| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 0.1uF | Capacitors_SMD:C_0805 | C4, C6, C7, C8, C9 |
| 2 | 18pF | Capacitors_SMD:C_0805 | C1, C2 |
| 1 | NFCBuisness:Rank | ||
| 1 | NFCBuisness:Name | ||
| 1 | NFCBuisness:Bottom | ||
| 1 | 0.01uF | Capacitors_SMD:C_0805 | C5 |
| 1 | 1-1 | LEDs:LED_0805 | D1 |
| 1 | 1-2 | LEDs:LED_0805 | D2 |
| 1 | 1-3 | LEDs:LED_0805 | D3 |
| 1 | 1-4 | LEDs:LED_0805 | D4 |
| 1 | 1-5 | LEDs:LED_0805 | D6 |
| 1 | 1-6 | LEDs:LED_0805 | D7 |
| 1 | 1-7 | LEDs:LED_0805 | D5 |
| 1 | 100k | Resistors_SMD:R_0805 | R1 |
| 1 | 1uF | Capacitors_SMD:C_0805 | C10 |
| 1 | 2-1 | LEDs:LED_0805 | D8 |
| 1 | 2-2 | LEDs:LED_0805 | D9 |
| 1 | 2-3 | LEDs:LED_0805 | D10 |
| 1 | 2-4 | LEDs:LED_0805 | D11 |
| 1 | 2-5 | LEDs:LED_0805 | D13 |
| 1 | 2-6 | LEDs:LED_0805 | D14 |
| 1 | 2-7 | LEDs:LED_0805 | D12 |
| 1 | 2.2uF | Capacitors_SMD:C_0805 | C3 |
| 1 | JTAG | NFCBusiness:Jtag | J1 |
| 1 | Power | NFCBusiness:PwrPins | J2 |
| 1 | RF430FRL | Housings_DFN_QFN:QFN-24-1EP_4x4mm_Pitch0.5mm | U1 |
| 1 | Val** | NFCBuisness:Layout-v2 | Ref** |
More from wrickert/NFCBusiness
2- 2 layers100 × 75.5 mm
NFCJig
wrickert/NFCBusiness
Using NFC to create a PCB business card that does not need a battery
11 parts4
Similar boards
- 2 layers50 × 23.2 mm
Analog
hoglet67/RGBtoHDMI
Bare-metal Raspberry Pi project that provides pixel-perfect sampling of Retro Computer RGB/YUV video and conversion to HDMI
32 parts1kGPL-3.0 - 2 layers136.8 × 54.2 mm
Retropie zero
hackclub/OnBoard
💡 Join 1,000 teenagers and make your first PCB with a $100 grant!
32 parts915 - 2 layers
- 2 layers16 × 20 mm
ESPKey
octosavvi/ESPKey
Wiegand data logger, replay device and micro door-controller
32 parts353GPL-2.0 - 2 layers82 × 40.9 mm
Display7447
zmaker/arduino_cookbook
gli sketch del nuovo progetto Arduino Cookbook e dei video di YouTube
32 parts269 - 2 layers40 × 38 mm
Shield
murexrobotics/electrical
Highly integrated electronics design and printed circuit boards (PCBs) for the MATE ROV Competition. Attempt the impossible.
32 parts192MIT - 2 layers47 × 39 mm
Qrss clock tx
swharden/AVR-projects
A collection of standalone AVR projects written in C
32 parts184MIT - 2 layers30.9 × 63 mm
Stm32-io extend
hardenedlinux/cheap-pcb
Cheap PCB: Better understanding the current status of hardware supply chain
32 parts170CC0-1.0
Questions
How big is the Card PCB?
It measures 89 × 51 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Card use?
32 parts. 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 Card KiCad files?
From the wrickert/NFCBusiness repository on GitHub, at the commit this page was made from: the board is Schematic/OldVersion/Card/Layout.kicad_pcb and its schematic Schematic/2023/NFCBuisnessV3.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Card design in my own project?
Its repository states no licence, so its author keeps all rights: ask wrickert before reusing the design.