

Vizitka MI
Our original business card PCB with 555 timer
- Size
- 90 × 50 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 9
- Nets
- 7
- Pads
- 24
- Tracks, vias
- 83, 20
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 26 Jul 2026
- Updated
- 26 Jul 2026
Overview
Vizitka MI is an open-source printed circuit board by Merix-Industries, from the Merix-Industries/Business-Card repository on GitHub, published under the MIT licence. It is a 2-layer board of 90 × 50 mm with 9 parts on 7 nets, routed with 83 tracks and 20 vias.
Its parts include 3 capacitors, 3 resistors, 1 IC and 1 diode.
Parts
9| Qty | Value | Footprint | References |
|---|---|---|---|
| 1 | 100nF | Capacitor_SMD:C_0805_2012Metric | C3 |
| 1 | 10K | Resistor_SMD:R_0805_2012Metric | R1 |
| 1 | 10nF | Capacitor_SMD:C_0805_2012Metric | C1 |
| 1 | 10uF | Capacitor_SMD:C_0805_2012Metric | C2 |
| 1 | 220R / 180R | Resistor_SMD:R_0805_2012Metric | R3 |
| 1 | 68k | Resistor_SMD:R_0805_2012Metric | R2 |
| 1 | Conn_01x02_Pin | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | - + |
| 1 | LED (red) | LED_SMD:LED_0805_2012Metric | D1 |
| 1 | LM555xM | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U1 |
Questions
How big is the Vizitka MI PCB?
It measures 90 × 50 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Vizitka MI use?
9 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 Vizitka MI KiCad files?
From the Merix-Industries/Business-Card repository on GitHub, at the commit this page was made from: the board is Vizitka_MI.kicad_pcb and its schematic Vizitka_MI.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Vizitka MI 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).
Similar boards
- 2 layers103 × 30.5 mm

- 2 layers31.8 × 47.6 mm

- 2 layers24 × 27.3 mm

Expansion Card Retrofit
FrameworkComputer/ExpansionCards
Reference designs and documentation to create Expansion Cards for the Framework Laptop
9 parts1.1kCC-BY-4.0 - 2 layers15.6 × 17.3 mm

SKR Mini TFT Thermistor Board
VoronDesign/Voron-Hardware
Cool Hardware designed by the Voron Design group
9 parts1.1kGPL-3.0 - 2 layers39.1 × 49.5 mm

Learnoliver
hackclub/OnBoard
💡 Join 1,000 teenagers and make your first PCB with a $100 grant!
9 parts915 - 2 layers17.4 × 16.9 mm

- 2 layers9.8 × 108 mm

- 2 layers

Keyboard after
adamws/kicad-kbplacer
KiCad plugin for automatic keyboard's key placement and routing
9 parts547GPL-3.0