2 layers
2 layers50 × 13 mm
Cw keyboard
ibuki2003/mini_cw_keyboard5CW USB Keyboard powered by V-USB
- Size
- 50 × 13 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 13
- Nets
- 17
- Pads
- 41
- Tracks, vias
- 59, 3
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 26 Oct 2023
- Updated
- 5 Dec 2023
Overview
Cw keyboard is an open-source printed circuit board by ibuki2003, from the ibuki2003/mini_cw_keyboard repository on GitHub. It is a 2-layer board of 50 × 13 mm with 13 parts on 17 nets, routed with 59 tracks and 3 vias.
It is built around the ATTINY44A-PU. Its parts include 5 resistors, 3 diodes, 1 capacitor, 1 IC and 1 connector. It belongs with the keyboards and input boards and the AVR (ATmega, ATtiny) boards of this library.
Main components
1README
readme.mdモールスキーボード
使い方
モールス信号でPCに文字を入力することができる、小型のキーボードです。 お使いのPCのUSB端子に接続し、タッチパッド（銀色の部分）を使ってモールス信号を入力すると、対応するキーが入力されます。
GitHubリポジトリについて
board
回路図、基板レイアウトがKiCAD形式で置かれています。 KiCADはオープンソースソフトウェアであり、Windows, Mac, Linux版等が入手可能です。
program
マイコンに書き込んだプログラムのソースコードが置かれています。
License
The program depends on the following libraries:
Parts
13| Qty | Value | Footprint | References |
|---|---|---|---|
| 2 | 1k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R4, R5 |
| 2 | 75 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1, R2 |
| 2 | D_Zener | Library:D_UMD2 | D1, D2 |
| 1 | 0.1u | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1 |
| 1 | 100k | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R3 |
| 1 | 20MHz | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | Y1 |
| 1 | ATtiny44A-P | Package_DIP:DIP-14_W7.62mm | U1 |
| 1 | LED | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D3 |
| 1 | SolderJumper_2_Open | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1 |
| 1 | USB_A | Library:USB-A_Connector_Direct | J1 |
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Questions
How big is the Cw keyboard PCB?
It measures 50 × 13 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Cw keyboard use?
13 parts, built around the ATTINY44A-PU. 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 Cw keyboard KiCad files?
From the ibuki2003/mini_cw_keyboard repository on GitHub, at the commit this page was made from: the board is board/cw_keyboard.kicad_pcb and its schematic board/cw_keyboard.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Cw keyboard design in my own project?
Its repository states no licence, so its author keeps all rights: ask ibuki2003 before reusing the design.