4 layers50 × 30 mm
2 layers61 × 28 mm
Mct2 buttons
ctcl-bregis/mct21MediaCow Touch 2 tablet computer project
- Size
- 61 × 28 mm
- Copper layers
- 2
- Thickness
- 1 mm
- Parts
- 35
- Nets
- 38
- Pads
- 132
- Tracks, vias
- 179, 86
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 4 Jul 2024
- Updated
- 12 Jul 2025
Overview
Mct2 buttons is an open-source printed circuit board by ctcl-bregis, from the ctcl-bregis/mct2 repository on GitHub. It is a 2-layer board of 61 × 28 mm with 35 parts on 38 nets, routed with 179 tracks and 86 vias.
It is built around the TCA8418RTW, 1N4148WT and B3F-1052, with the OS102011MS2QN1C among its other parts. Its parts include 14 switches, 12 diodes, 2 capacitors, 2 resistors and 1 IC.
Main components
4
TCA8418RTW
WQFN-24-EP(4x4)-40℃~+85℃ 1.65V~3.6V 18 1MHz I2C Input anti-jitter、Keyboard matrix scanning Interrupt Output Open-drain WQFN-24-EP(4x4) I/O Expanders ROHSTexas InstrumentsI/O Expanders
1N4148WT
SOD-523-55℃~+150℃ 1.25V@150mA 100V 150mA 150mW 1uA@75V 2A 4ns Independent SOD-523 Switching Diodes ROHShongjiachengSwitching Diodes
B3F-1052
KEY-SMD-25℃~+70℃ 1.5N 24V 300,000 Cycles 50mA 6mm 6mm 7.3mm PC Pin Rectangular Button SPST-NO Through Hole 插件-4P,6x6mm Tactile Switches ROHSOmronTactile Switches
OS102011MS2QN1C
插件-30℃~+70℃ 12V PC Pin Rectangular Columnar SPDT Through Hole 插件 Slide Switches ROHSC&KSlide Switches
README
README.md
MediaCow Touch 2
MediaCow Touch 2 "Paris" is the successor to MediaCow Touch (1) "Nashville" which is a DIY portable tablet computer.
This repository has all of the hardware designs and some software for the project.
See MediaCow Touch 2 page for more information.
Parts
35| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | 1N4148WT | Diode_SMD:D_SOD-523 | D1, D2, D3, D4, D5, D6, D7, D8, D9, D10, D11, D12 |
| 12 | B3F-1052 | mediacow:SW_TH_Tactile_Omron_B3F-10xx_center | SW1, SW2, SW3, SW4, SW5, SW6, SW7, SW8, SW9, SW10, SW11, SW12 |
| 3 | MountingHole | MountingHole:MountingHole_2.2mm_M2_Pad | H1, H2, H3 |
| 2 | 10K | Resistor_SMD:R_0603_1608Metric | R1, R2 |
| 2 | OS102011MS2QN1C | mediacow:SW_Slide_SPDT_Straight_CK_OS102011MS2Q_center | SW13, SW14 |
| 1 | 100nF | Capacitor_SMD:C_0603_1608Metric | C1 |
| 1 | 1uF | Capacitor_SMD:C_0603_1608Metric | C2 |
| 1 | Conn_01x08 | Connector_FFC-FPC:Molex_200528-0080_1x08-1MP_P1.00mm_Horizontal | J1 |
| 1 | TCA8418 | Package_DFN_QFN:Texas_RTW_WQFN-24-1EP_4x4mm_P0.5mm_EP2.7x2.7mm | U1 |
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Questions
How big is the Mct2 buttons PCB?
It measures 61 × 28 mm and has 2 copper layers, 1 mm thick.
What parts does the Mct2 buttons use?
35 parts, built around the TCA8418RTW, 1N4148WT, B3F-1052 and OS102011MS2QN1C. 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 Mct2 buttons KiCad files?
From the ctcl-bregis/mct2 repository on GitHub, at the commit this page was made from: the board is full/circuits/mct2_buttons/mct2_buttons.kicad_pcb and its schematic full/circuits/mct2_audio/mct2_audio.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Mct2 buttons design in my own project?
Its repository states no licence, so its author keeps all rights: ask ctcl-bregis before reusing the design.