4 layers110 × 50 mm
OpenHand v1
AleksaHeler/OpenHand
Our attempt at a prosthetic hand using STM32 microcontroller with custom PCB and mechanics
214 parts13MIT
2 layers54.5 × 44.5 mm
ValvePilot
F3cha/valvePilot1- Size
- 54.5 × 44.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 26
- Nets
- 32
- Pads
- 111
- Tracks, vias
- 255, 43
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 21 Jul 2025
- Updated
- 21 Jul 2025
Overview
ValvePilot is an open-source printed circuit board by F3cha, from the F3cha/valvePilot repository on GitHub. It is a 2-layer board of 54.5 × 44.5 mm with 26 parts on 32 nets, routed with 255 tracks and 43 vias.
It is built around the DRV8833PWP and AO3401A. Its parts include 6 capacitors, 6 connectors, 4 resistors, 3 ICs and 1 transistor. It belongs with the ESP32 and RISC-V boards of this library.
Main components
2
DRV8833PWP
ETSSOP-16-EP-40℃~+85℃ 1.5A 2 2.7V~10.8V 2.7V~10.8V 360mΩ Bipolar Driver Overcurrent Protection、Short-Circuit Protection、Over temperature protection、Under-voltage lockout、Dead-time / shoot-through protection Yes ETSSOP-16-EP Stepper Motor Driver ROHSTexas InstrumentsStepper Motor Driver
AO3401A
SOT-231 P-Channel 14nC@10V 30V 47mΩ@10V、60mΩ@4.5V、85mΩ@2.5V 4A 55pF 645pF 80pF 900mV SOT-23 MOSFETs ROHSAlpha & Omega SemiconductorMOSFETs
Parts
26| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | MOTOR | TerminalBlock:TerminalBlock_Altech_AK300-2_P5.00mm | J1, J2, J5, J6 |
| 4 | R | Resistor_SMD:R_0805_2012Metric | R1, R2, R3, R4 |
| 4 | SolderJumper_2_Open | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1, JP2, JP3, JP4 |
| 2 | 0.01μF 16V | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C1, C5 |
| 2 | 10μF 16V | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C3, C4 |
| 2 | 2.2μF 6.3V | Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder | C2, C6 |
| 2 | Conn_02x01 | Connector_PinSocket_1.27mm:PinSocket_2x01_P1.27mm_Vertical | J3, J4 |
| 2 | DRV8833PWP | Package_SO:HTSSOP-16-1EP_4.4x5mm_P0.65mm_EP3.4x5mm_Mask2.46x2.31mm | U1, U3 |
| 2 | LOGO | LOGO | G***, G*** |
| 1 | AO3401A | Package_TO_SOT_SMD:SOT-23_Handsoldering | Q2 |
| 1 | XIAO-ESP32-C3-DIP | Seeed Studio XIAO Series Library:XIAO-ESP32C3-DIP | U2 |
Questions
How big is the ValvePilot PCB?
It measures 54.5 × 44.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the ValvePilot use?
26 parts, built around the DRV8833PWP and AO3401A. 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 ValvePilot KiCad files?
From the F3cha/valvePilot repository on GitHub, at the commit this page was made from: the board is ValvePilot.kicad_pcb and its schematic ValvePilot.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the ValvePilot design in my own project?
Its repository states no licence, so its author keeps all rights: ask F3cha before reusing the design.
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