4 layers180 × 35 mm
6 layers150 × 35 mm
Step
versioduo/step👣 V2 step – Stepper Motor Controller
- Size
- 150 × 35 mm
- Copper layers
- 6
- Thickness
- 1.54 mm
- Parts
- 127
- Nets
- 157
- Pads
- 1,088
- Tracks, vias
- 749, 344
- Pours
- 215
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 6 Mar 2021
- Updated
- 30 Aug 2026
Overview
Step is an open-source printed circuit board by versioduo, from the versioduo/step repository on GitHub. It is a 6-layer board of 150 × 35 mm with 127 parts on 157 nets, routed with 749 tracks and 344 vias.
It is built around the THVD2442DRC, TMC2130-LA and TPS78433QWDRBRQ1, with the WS2812, CG0603MLC-05LE and RCLAMP0582N among its other parts. Its parts include 45 capacitors, 21 connectors, 19 resistors, 8 ICs and 7 diodes. It belongs with the robots and motor control boards and the SAM D and SAM boards of this library.
Main components
7
THVD2442DRC
VSON-10-EP(3x3)-40℃~+125℃ 1 1 20Mbps 256 3V~5.5V 7uA Full-Duplex Transceiver ±8kV VSON-10-EP(3x3) RS-485 / RS-422 ICs ROHSTexas InstrumentsRS-485 / RS-422 ICs
TMC2130-LA
QFN-36-EP(5x6)QFN-36-EP(5x6) Motor Driver ICs ROHSTRINAMIC Motion Control GmbHMotor Driver ICs
TPS78433QWDRBRQ1
SON-8(3x3)-40℃~+150℃@(Tj) 1 115mV@(300mA) 25uA 3.3V 300mA 30uVrms 50dB@(100kHz) 6V Fixed Over Current Protection、Over Temperature Protection、Soft Start、Enable Positive SON-8(3x3) Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
WS2812
SMD5050-4P1.57mm 1000mcd 110mcd 120us 2kHz 3.7V~5.3V 300ns 320mcd 451nm 523nm 5mm 5mm 623nm 800Kbit/s Built-in power-on reset circuit、Built-in power-on reset circuit Top-mount SMD5050-4P RGB LEDs(Built-in IC) ROHSWorldsemiRGB LEDs(Built-In IC)
CG0603MLC-05LE
0603-40℃~+85℃ 0.5pF 1 25V 5V 5nA ESD IEC 61000-4-2 0603 ESD and Surge Protection (TVS/ESD) ROHSBournsVaristors
RCLAMP0582N
DFN-6(1.2x1)DFN-6(1.2x1) ESD and Surge Protection (TVS/ESD) ROHSTECH PUBLICUncategorised
SMBJ33CA
DO-214AA(SMB)ESD And Surge Protection (TVS/ESD)hongjiacheng
README
README.mdCopying
Anyone can use this public domain work without having to seek authorisation, no one can ever own it.
Parts
127| Qty | Value | Footprint | References |
|---|---|---|---|
| 18 | WAGO 2065-100 | V2_Connector_WAGO:2065-100 | J102, J103, J201, J202, J203, J204, J301, J302, J303, J304, J401, J402, J403, J404, J501, J502 +2 |
| 16 | 0u1 | V2_Capacitor_SMD:C_1608 | C106, C107, C108, C109, C110, C111, C203, C204, C303, C304, C403, C404, C503, C504, C1901, C2001 |
| 8 | 0R11 | V2_Resistor_SMD:R_2012 | R202, R203, R302, R303, R402, R403, R502, R503 |
| 8 | 10u | V2_Capacitor_SMD:C_3225 | C206, C207, C306, C307, C406, C407, C506, C507 |
| 6 | WS2812 | V2_LED:WS2812-2020 | D101, D102, D201, D301, D401, D501 |
| 5 | 2mm | V2_Mechanical:MountingHole_2mm | H101, H102, H103, H104, H105 |
| 4 | 0u022 | V2_Capacitor_SMD:C_1608 | C208, C308, C408, C508 |
| 4 | 0u47 | V2_Capacitor_SMD:C_1608 | C202, C302, C402, C502 |
| 4 | 2R2 | V2_Resistor_SMD:R_1608 | R201, R301, R401, R501 |
| 4 | 47u | V2_Capacitor_SMD:CP_Elec_6.3x5.8 | C205, C305, C405, C505 |
| 4 | 4u7 | V2_Capacitor_SMD:C_1608 | C201, C301, C401, C501 |
| 4 | TMC2130-LA | V2_Package_DFN_QFN:QFN-36-5X6 | U201, U301, U401, U501 |
| 3 | 3mm | V2_Mechanical:MountingHole_3mm | H106, H107, H108 |
| 3 | Fiducial_Paste | V2_Fiducial:Fiducial_0.5mm_Mask1mm_Paste | FID101, FID102, FID103 |
| 2 | 100R | V2_Resistor_SMD:R_1608 | R1901, R2001 |
| 2 | 100k | V2_Resistor_SMD:R_1608 | R101, R103 |
| 2 | 10k | V2_Resistor_SMD:R_1608 | R104, R105 |
| 2 | 10u | V2_Capacitor_SMD:C_2012 | C103, C105 |
| 2 | 18p | V2_Capacitor_SMD:C_1608 | C101, C102 |
| 2 | 2x05_Horizontal | V2_Connector_Header_1.27mm:PinHeader_2x05_P1.27mm_Horizontal | J1901, J2001 |
| 2 | PCB_Plug_Horizontal | V2_PCB_Devices:PCB_Plug_Horizontal | PLUG101, PLUG102 |
| 2 | SKSG | V2_Button_Switch_SMD:SKSG | SW101, SW102 |
| 2 | THVD2442 | V2_Package_SON:VSON-10-4-1EP_3x3mm_P0.5mm_EP1.65x2.4mm_ThermalVias | U1901, U2001 |
| 1 | 10u | V2_Capacitor_SMD:C_1608 | C104 |
| 1 | 32k768 | V2_Crystal:Crystal_SMD_3215-2Pin_3.2x1.5mm | Y101 |
| 1 | 330R | V2_Resistor_SMD:R_1608 | R102 |
| 1 | ATSAMD51J | V2_Package_DFN_QFN:QFN-64-1EP_9x9mm_P0.5mm_EP4.8x4.8mm_ThermalVias | U102 |
| 1 | Arrow_In | V2_Artwork:Arrow_In | ICON104 |
| 1 | Arrow_Out | V2_Artwork:Arrow_Out | ICON105 |
| 1 | Board_step | V2_Artwork:Board_step_Small | ICON101 |
| 1 | Button-bottom | V2_PCB_Devices:PCB_Button-bottom | SWB101 |
| 1 | CG0603MLC-05LE | V2_Diode_SMD:D_1608 | TVS101 |
| 1 | Cortex | V2_Connector_Debug:Cortex | J101 |
| 1 | Layer_Numbers-6 | V2_Production:Layer_Numbers-6 | INFO102 |
| 1 | Orange | V2_LED:LED_1608 | D103 |
| 1 | Plus | V2_Artwork:Plus_Small | ICON103 |
| 1 | RCLAMP0582N | V2_ESD_Suppressor:SLP1210N6 | ESD101 |
| 1 | SMBJ33CA | V2_Diode_SMD:D_SMB | TVS102 |
| 1 | TPS78433QWDRBRQ1 | V2_Package_SON:VSON-8-1_3x3mm_P0.65_EP1.65x2.4mm | U101 |
| 1 | V2-logo | V2_Artwork:Logo_Small | ICON102 |
| 1 | ~ | V2_Production:Revision | INFO101 |
Questions
How big is the Step PCB?
It measures 150 × 35 mm and has 6 copper layers, 1.54 mm thick.
What parts does the Step use?
127 parts, built around the THVD2442DRC, TMC2130-LA, TPS78433QWDRBRQ1 and WS2812. 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 Step KiCad files?
From the versioduo/step repository on GitHub, at the commit this page was made from: the board is hardware/step.kicad_pcb and its schematic hardware/Link-Plug.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Step design in my own project?
Its repository states no licence, so its author keeps all rights: ask versioduo before reusing the design.
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