4 layers39 × 67.3 mm
Neptune
jackbrad1ey/water_jet_tvc
A water-propelled thrust vector control (TVC) testbed vehicle aiming to decrease the cost and time factors associated with developing TVC control algorithms
69 parts1
2 layers242.3 × 98.1 mm
Keyboard
jackbrad1ey/thingamaboard4A custom, low-profile mechanical keyboard developed to be used as a portable ergonomic keyboard
- Size
- 242.3 × 98.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 131
- Nets
- 109
- Pads
- 514
- Tracks, vias
- 786, 50
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 19 Jun 2023
- Updated
- 28 Oct 2023
Overview
Keyboard is an open-source printed circuit board by jackbrad1ey, from the jackbrad1ey/thingamaboard repository on GitHub, published under the MIT licence. It is a 2-layer board of 242.3 × 98.1 mm with 131 parts on 109 nets, routed with 786 tracks and 50 vias.
It is built around the LP3993-33B3F, USBLC6-2SC6 and BC858, with the TS-1187A-B-A-B among its other parts. Its parts include 43 switches, 42 diodes, 17 capacitors, 7 resistors and 3 ICs. It belongs with the keyboards and input boards and the STM32 boards of this library.
Main components
4
LP3993-33B3F
SOT-23-40℃~+85℃@(Tj) 1 200mA 24V 3.3V 300mV@(100mA) 5uA 76dB@(1kHz) Fixed Over Current Protection、Over Temperature Protection Positive SOT-23 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSLOWPOWERVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
USBLC6-2SC6
SOT-23-60.35pF、0.8pF 100nA 150W@8/20us 15V 2 5V 6A@8/20us 6V ESD SOT-23-6 ESD and Surge Protection (TVS/ESD) ROHSUMWESD And Surge Protection (TVS/ESD)BC858
SOT-23SOT-23 Bipolar (BJT) ROHSHTBipolar Transistors - BJT
TS-1187A-B-A-B
SMD-4P,5.1x5.1mm-30℃~+85℃ 1.5mm 1.6N 100,000 cycles 12V 5.1mm 5.1mm 50mA Gold No Round Button SPST Surface Mount,Vertical Without Bracket SMD-4P,5.1x5.1mm Tactile Switches ROHSXKB ConnectionTactile Switches
README
README.mdThingamaboard
A custom keyboard designed and manufactured for myself. Programmed using STM32CubeIDE and Jetbrains Fleet, designed using Ergogen, AutoCAD and Solidworks. This board was developed with portability and ergonomics in mind. It adopts a columnar, alice-like layout with three-key thumb clusters, allowing for ergonomic typing in a relatively small and portable form factor.
Parts
131| Qty | Value | Footprint | References |
|---|---|---|---|
| 42 | D_Small | Diode_SMD:D_SOD-123 | D1, D2, D10, D11, D12, D13, D14, D15, D16, D17, D18, D19, D20, D21, D22, D23 +26 |
| 42 | SW_Push | local-library:SW_PG1350 | SW1, SW2, SW10, SW11, SW12, SW13, SW14, SW15, SW16, SW17, SW18, SW19, SW20, SW21, SW22, SW23 +26 |
| 6 | 10.2k | Resistor_SMD:R_0603_1608Metric | R1, R2, R3, R4, R5, R8 |
| 6 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4, H5, H6 |
| 4 | 100nF | Capacitor_SMD:C_0603_1608Metric | C5, C11, C12, C15 |
| 4 | ~ | TestPoint:TestPoint_Pad_D2.0mm | TP1, TP2, TP3, TP4 |
| 3 | 1u | Capacitor_SMD:C_0603_1608Metric | C4, C13, C16 |
| 2 | 10n | Capacitor_SMD:C_0603_1608Metric | C1, C10 |
| 2 | 15p | Capacitor_SMD:C_0805_2012Metric | C7, C9 |
| 2 | 33p | Capacitor_SMD:C_0805_2012Metric | C6, C8 |
| 2 | bridge | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1, JP2 |
| 1 | 0.1u | Capacitor_SMD:C_0603_1608Metric | C17 |
| 1 | 1.91k | Resistor_SMD:R_0603_1608Metric | R7 |
| 1 | 100n | Capacitor_SMD:C_0603_1608Metric | C2 |
| 1 | 10u | Capacitor_SMD:C_0805_2012Metric | C3 |
| 1 | 10u | Inductor_SMD:L_0805_2012Metric | L1 |
| 1 | 12MHz | Crystal:Crystal_SMD_5032-4Pin_5.0x3.2mm | Y1 |
| 1 | 32.768k | Crystal:Crystal_SMD_3215-2Pin_3.2x1.5mm | Y2 |
| 1 | 4.7u | Capacitor_SMD:C_0603_1608Metric | C14 |
| 1 | BC858 | Package_TO_SOT_SMD:SOT-23 | Q2 |
| 1 | Conn_01x04 | Connector_PinSocket_2.54mm:PinSocket_1x04_P2.54mm_Horizontal | J2 |
| 1 | FerriteBead_Small | Inductor_SMD:L_0603_1608Metric | FB1 |
| 1 | LP3993-33B3F | Package_TO_SOT_SMD:SOT-23 | U1 |
| 1 | STM32F411RETx | Package_QFP:LQFP-64_10x10mm_P0.5mm | U3 |
| 1 | TS-1187A-B-A-B | Button_Switch_SMD:SW_Push_1P1T_NO_CK_KSC6xxJ | SW43 |
| 1 | USBLC6-2SC6 | Package_TO_SOT_SMD:SOT-23-6 | U2 |
| 1 | USB_C_Receptacle_USB2.0 | local-library:TYPE-C-31-M-12 | J1 |
Questions
How big is the Keyboard PCB?
It measures 242.3 × 98.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Keyboard use?
131 parts, built around the LP3993-33B3F, USBLC6-2SC6, BC858 and TS-1187A-B-A-B. 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 Keyboard KiCad files?
From the jackbrad1ey/thingamaboard repository on GitHub, at the commit this page was made from: the board is pcb/keyboard.kicad_pcb and its schematic pcb/connectors.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Keyboard 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).
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