

Wifistepper
Wi-Fi Stepper project repo
- Size
- 77.6 × 57.3 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 92
- Nets
- 68
- Pads
- 282
- Tracks, vias
- 540, 349
- Pours
- 42
- Routed
- Yes
- KiCad
- KiCad 5 (file 20171130)
- Created
- 13 May 2019
- Updated
- 19 Jan 2024
Overview
Wifistepper is an open-source printed circuit board by goodrobotics, from the goodrobotics/wifistepper repository on GitHub. It is a 4-layer board of 77.6 × 57.3 mm with 92 parts on 68 nets, routed with 540 tracks and 349 vias.
It is built around the ESP-WROOM-02 and POWERSTEP01. Its parts include 32 resistors, 24 capacitors, 8 diodes, 5 connectors and 4 ICs. It belongs with the robots and motor control boards and the ESP8266 boards of this library.
Main components
2ESP-WROOM-02
SMD-18P-40℃~+85℃ -98dBm 170mA 2.4GHz 2.7V~3.6V 20dBm 50mA、56mA ESP8266EX On-board PCB Antenna UART、SPI、I2C、GPIO、PWM、I2S SMD-18P WiFi Modules ROHSEspressif SystemsWiFi ModulesPOWERSTEP01
VFQFPN-89(11x14)-40℃~+150℃ 10A 128 16mΩ 2 7.5V~15V 7.5V~85V Bipolar Driver SPI Yes VFQFPN-89(11x14) Stepper Motor Driver ROHSSTMicroelectronicsStepper Motor Driver
Parts
92| Qty | Value | Footprint | References |
|---|---|---|---|
| 14 | 22 | Resistor_SMD:R_0603_1608Metric | R2, R16, R17, R18, R19, R20, R21, R23, R24, R25, R26, R27, R28, R29 |
| 9 | 0.1uF | Capacitor_SMD:C_0603_1608Metric | C5, C12, C14, C16, C17, C21, C22, C23, C24 |
| 8 | 0.27 | Resistor_SMD:R_2512_6332Metric | RS1, RS2, RS3, RS4, RS5, RS6, RS7, RS8 |
| 4 | 220nF 100V | Capacitor_SMD:C_0805_2012Metric | C6, C7, C8, C9 |
| 3 | 2.2K | Resistor_SMD:R_0603_1608Metric | R5, R14, R15 |
| 3 | 330 | Resistor_SMD:R_0603_1608Metric | R9, R10, R11 |
| 2 | 100uF 100V (Low ESR) | Capacitor_THT:CP_Radial_D12.5mm_P5.00mm | C10, C11 |
| 2 | 10K | Resistor_SMD:R_0603_1608Metric | R12, R13 |
| 2 | 10uF | Capacitor_SMD:C_0805_2012Metric | C15, C20 |
| 2 | 1K | Resistor_SMD:R_0603_1608Metric | R6, R22 |
| 2 | 39K | Resistor_SMD:R_0603_1608Metric | R7, R8 |
| 2 | 470nF 100V | Capacitor_SMD:C_0805_2012Metric | C2, C3 |
| 2 | 47K | Resistor_SMD:R_0603_1608Metric | R3, R31 |
| 2 | Conn_01x10 | Connector_PinHeader_2.54mm:PinHeader_1x10_P2.54mm_Vertical | J3, J4 |
| 2 | Jumper_2_Open | Klofas-Connectors:STpowerSTEP01_JMP | JP1, JP2 |
| 2 | SolderJumper_2_Bridged | Jumper:SolderJumper-2_P1.3mm_Bridged_RoundedPad1.0x1.5mm | JP0, JP3 |
| 1 | - | Klofas-Passives:Resistor_NP_0805 | R1 |
| 1 | 000 | Resistor_SMD:R_0603_1608Metric | R32 |
| 1 | 1.8K | Resistor_SMD:R_0603_1608Metric | R4 |
| 1 | 10 | Resistor_SMD:R_1206_3216Metric | R30 |
| 1 | 1uF | Capacitor_SMD:C_0603_1608Metric | C19 |
| 1 | 1uF 100V | Capacitor_SMD:C_0805_2012Metric | C18 |
| 1 | 220nF | Capacitor_SMD:C_0805_2012Metric | C4 |
| 1 | 22uF | Capacitor_SMD:C_1206_3216Metric | C1 |
| 1 | 3.9V | Diode_SMD:D_SOD-123 | D6 |
| 1 | 33uH | Inductor_SMD:L_Taiyo-Yuden_NR-50xx | L1 |
| 1 | 47nF 100V | Capacitor_SMD:C_0805_2012Metric | C13 |
| 1 | 50V Clamp | Klofas-Passives:D_SMF_DO-219AB | D7 |
| 1 | 80V (Back EMF Clamp) | Diode_SMD:D_SMB | D0 |
| 1 | ATECC508A | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U4 |
| 1 | Barrel_Jack_Switch | Connector_BarrelJack:BarrelJack_Horizontal | J1 |
| 1 | Conn_01x02 | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J5 |
| 1 | D_Schottky | Diode_SMD:D_SOD-123 | D2 |
| 1 | D_Schottky_x2_Serial_AKC | Package_TO_SOT_SMD:SOT-23 | D1 |
| 1 | ESP-WROOM-02 | Klofas-RF:ESP-WROOM-02 | U1 |
| 1 | LED GRN | Diode_SMD:D_0805_2012Metric | D3 |
| 1 | LED RED | Diode_SMD:D_0805_2012Metric | D5 |
| 1 | LED YEL | Diode_SMD:D_0805_2012Metric | D4 |
| 1 | MAX15062A | Package_DFN_QFN:DFN-8_2x2mm_P0.5mm | U3 |
| 1 | SW_SPST | Klofas-Passives:TL3315NF100Q | SW1 |
| 1 | Screw_Terminal | TerminalBlock_Phoenix:TerminalBlock_Phoenix_PT-1,5-6-5.0-H_1x06_P5.00mm_Horizontal | J2 |
| 1 | SolderJumper_3_Bridged12 | Jumper:SolderJumper-3_P1.3mm_Bridged12_RoundedPad1.0x1.5mm | JP4 |
| 1 | powerSTEP01 | Klofas-Motor:powerSTEP01 | U2 |
The 88 most common of 92 parts.
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Questions
How big is the Wifistepper PCB?
It measures 77.6 × 57.3 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Wifistepper use?
92 parts, built around the ESP-WROOM-02 and POWERSTEP01. 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 Wifistepper KiCad files?
From the goodrobotics/wifistepper repository on GitHub, at the commit this page was made from: the board is hardware/wsx100/wifistepper.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the Wifistepper design in my own project?
Its repository states no licence, so its author keeps all rights: ask goodrobotics before reusing the design.