2 layers50.8 × 25.4 mm
ESP32
vul-os/sirboard
Open hardware: 107 KiCad PCB designs — SMD-to-THT breakout adapters, ATTiny/ATMega/ESP development boards, and a 39-part sensor line on a common JST-SH connector.
49 parts56Apache-2.0
2 layers330 × 106 mm
Keyboard68
crohloff/keyboard682- Size
- 330 × 106 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 310
- Nets
- 219
- Pads
- 3,724
- Tracks, vias
- 1,723, 323
- Pours
- 3
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 23 Jul 2019
- Updated
- 27 Apr 2021
Overview
Keyboard68 is an open-source printed circuit board by crohloff, from the crohloff/keyboard68 repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 330 × 106 mm with 310 parts on 219 nets, routed with 1,723 tracks and 323 vias.
It is built around the MT3608, WS2812B and MBR120, with the DMG2305UX and PRTR5V0U2X among its other parts. Its parts include 141 diodes, 78 capacitors, 70 connectors, 11 resistors and 4 ICs. It belongs with the nRF52 and nRF5x boards of this library.
Main components
5
MT3608
SOT-23-6-40℃~+85℃ 1 1.2MHz 100uA、1.6mA 2A 2V~24V Adjustable Boost Boost Built-in No SOT-23-6 DC-DC Converters ROHS西安航天民芯DC-DC Converters
WS2812B
5mm X 5mm Surface Mount RGB LED with Intelligent ControlWorldsemiUncategorised
MBR120
SOD-123Schottky DiodesDoeshare
DMG2305UX
SOT-23-55℃~+150℃ 1 P-Channel 1.7W 190pF 1V 20V 4.1A 52mΩ@4.5V 7.8nC 740pF P-Channel SOT-23 MOSFETs ROHSTECH PUBLICMOSFETs
PRTR5V0U2X
SOT-143-55℃~+125℃ 0.3pF、0.8pF 100W 10V、15V 5V 6.5V 6A 80nA ESD IEC 61000-4-2、IEC 61000-4-5、IEC 61000-4-4 Three channels Unidirectional SOT-143 ESD and Surge Protection (TVS/ESD) ROHSTECH PUBLICESD And Surge Protection (TVS/ESD)
README
README.mdkeyboard68
Production files
- The gerber files can be used with any manufacturer
- position files are meant to be used with jlcpcb and are already changed accordingly
Parts
310| Qty | Value | Footprint | References |
|---|---|---|---|
| 74 | 100nF | Capacitor_SMD:C_0805_2012Metric | C2, C10, C11, C12, C13, C14, C15, C16, C17, C18, C19, C20, C21, C22, C23, C24 +58 |
| 68 | Conn_01x02_Female | Kailh:Kaihl_socket_CPG151101S11 | J2, J10, J11, J12, J13, J14, J15, J16, J17, J18, J19, J20, J21, J22, J23, J24 +52 |
| 68 | Switching Diode | Diode_SMD:D_0805_2012Metric | D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23, D24 +52 |
| 68 | WS2812B | ws2812_inPCB:ws2812_inPCB | D100, D101, D102, D103, D104, D105, D106, D107, D108, D109, D110, D111, D112, D113, D114, D115 +52 |
| 5 | 100k | Resistor_SMD:R_0805_2012Metric | R5, R8, R9, R10, R11 |
| 3 | 120R/0.55A | Inductor_SMD:L_0402_1005Metric | FB1, FB2, FB3 |
| 2 | 0R | Resistor_SMD:R_0805_2012Metric | R3, R4 |
| 2 | 22uF | Capacitor_SMD:C_0805_2012Metric | C73, C74 |
| 2 | 5.1k | Resistor_SMD:R_0805_2012Metric | R1, R2 |
| 2 | MBR120 | Diode_SMD:D_SOD-123 | D140, D141 |
| 2 | WS2812B | LED_SMD:LED_WS2812B_PLCC4_5.0x5.0mm_P3.2mm | D70, D71 |
| 1 | 10nF | Capacitor_SMD:C_0805_2012Metric | C1 |
| 1 | 10uF | Capacitor_SMD:C_0805_2012Metric | C77 |
| 1 | 1k | Resistor_SMD:R_0805_2012Metric | R7 |
| 1 | 22uH | L_3x3_H1.5:L_3x3_H1.5 | L1 |
| 1 | 6.5k | Resistor_SMD:R_0805_2012Metric | R6 |
| 1 | Conn_01x02_Male | JST_PH_S2B-PH-SM4-TB_LF:JST_PH_S2B-PH-SM4-TB_LF__SN_ | J1 |
| 1 | Conn_02x03_Odd_Even | Connector:Tag-Connect_TC2030-IDC-NL_2x03_P1.27mm_Vertical | J70 |
| 1 | DMG2305 | Package_TO_SOT_SMD:SOT-23 | Q1 |
| 1 | EVQPUJ02K / EVQPUA02K | custom_footprints:Panasonic_EVQPUJ_EVQPUA | SW1 |
| 1 | MT3608 | Package_TO_SOT_SMD:SOT-23-6 | U3 |
| 1 | PRTR5V0U2X | Package_TO_SOT_SMD:SOT-143 | D1 |
| 1 | SN74LVC1T45DBVT | Package_TO_SOT_SMD:SOT-23-6 | U4 |
| 1 | USB_C | USB_C_Receptacle_Amphenol_12401610E4-2A:USB_C_Receptacle_Amphenol_12401610E4-2A | U1 |
| 1 | nRF52840_som | nrf52840_som:nrf52840_som | U2 |
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Questions
How big is the Keyboard68 PCB?
It measures 330 × 106 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Keyboard68 use?
310 parts, built around the MT3608, WS2812B, MBR120 and DMG2305UX. 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 Keyboard68 KiCad files?
From the crohloff/keyboard68 repository on GitHub, at the commit this page was made from: the board is keyboard_68.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Keyboard68 design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).