4 layers110 × 50 mm
OpenHand v1
AleksaHeler/OpenHand
Our attempt at a prosthetic hand using STM32 microcontroller with custom PCB and mechanics
214 parts13MIT
4 layers46.3 × 29.5 mm
ServoV1
Dotpakc/ServoDriverArmTest- Size
- 46.3 × 29.5 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 73
- Nets
- 67
- Pads
- 287
- Tracks, vias
- 507, 151
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 8 Jun 2025
- Updated
- 8 Jun 2025
Overview
ServoV1 is an open-source printed circuit board by Dotpakc, from the Dotpakc/ServoDriverArmTest repository on GitHub. It is a 4-layer board of 46.3 × 29.5 mm with 73 parts on 67 nets, routed with 507 tracks and 151 vias.
It is built around the DRV8833PWP and AMS1117-3.3. Its parts include 26 capacitors, 18 resistors, 12 connectors, 5 ICs and 2 diodes. It belongs with the STM32 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
AMS1117-3.3
SOT-223-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive SOT-223 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
Parts
73| Qty | Value | Footprint | References |
|---|---|---|---|
| 14 | 2.2uF | Capacitor_SMD:C_0603_1608Metric | C1, C2, C3, C4, C6, C7, C13, C14, C15, C16, C23, C24, C25, C26 |
| 8 | 0R1 | Resistor_SMD:R_1206_3216Metric_Pad1.30x1.75mm_HandSolder | R4, R5, R6, R7, R8, R9, R10, R17 |
| 8 | 100nF | Capacitor_SMD:C_0402_1005Metric | C9, C10, C11, C12, C17, C18, C19, C22 |
| 7 | 10K | Resistor_SMD:R_0402_1005Metric | R3, R11, R13, R14, R15, R16, R18 |
| 5 | MountingHole | MountingHole:MountingHole_2.2mm_M2 | H1, H1, H2, H3, H4 |
| 4 | PINHD_1x3_Female | Connector_PinSocket_2.54mm:PinSocket_1x03_P2.54mm_Vertical | J9, J10, J11, J12 |
| 3 | 220R | Resistor_SMD:R_0402_1005Metric | R1, R2, R12 |
| 3 | PINHD_1x2_Female | Connector_PinSocket_2.54mm:PinSocket_1x02_P2.54mm_Vertical | J2, J3, J4 |
| 3 | SolderJumper_2_Open | Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm | JP1, JP2, JP3 |
| 2 | 10nF | Capacitor_SMD:C_0402_1005Metric | C5, C8 |
| 2 | 18pF | Capacitor_SMD:C_0402_1005Metric | C20, C21 |
| 2 | Conn_01x02_Pin | Library:2PSOLDER | J5, J6 |
| 2 | DRV8833PWP | Package_SO:HTSSOP-16-1EP_4.4x5mm_P0.65mm_EP3.4x5mm_Mask2.46x2.31mm_ThermalVias | U2, U4 |
| 2 | I2C | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J7, J8 |
| 2 | LED | LED_SMD:LED_0603_1608Metric | D1, D2 |
| 1 | 60Ω@100MHz | Resistor_SMD:R_0402_1005Metric | FB1 |
| 1 | AMS1117-3.3 | Package_TO_SOT_SMD:SOT-89-3 | U5 |
| 1 | Conn_01x05_Pin | Connector_PinHeader_2.54mm:PinHeader_1x05_P2.54mm_Vertical | J1 |
| 1 | Crystal_GND24 | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | INA3221 | Package_DFN_QFN:Texas_RGV0016A_VQFN-16-1EP_4x4mm_P0.65mm_EP2.1x2.1mm | U3 |
| 1 | STM32F411CEUx | Package_DFN_QFN:QFN-48-1EP_7x7mm_P0.5mm_EP5.6x5.6mm | U1 |
Questions
How big is the ServoV1 PCB?
It measures 46.3 × 29.5 mm and has 4 copper layers, 1.6 mm thick.
What parts does the ServoV1 use?
73 parts, built around the DRV8833PWP and AMS1117-3.3. 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 ServoV1 KiCad files?
From the Dotpakc/ServoDriverArmTest repository on GitHub, at the commit this page was made from: the board is ServoV1/ServoV1.kicad_pcb and its schematic ServoV1/Core.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the ServoV1 design in my own project?
Its repository states no licence, so its author keeps all rights: ask Dotpakc before reusing the design.
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