4 layers67 × 51 mm
4 layers69 × 69 mm
Wall E motherboard
ArathBV/Project-WALLEThis repository contains ME 507 Quarter term project WALLE. Created by Arath Villanueva and Devon Bolt. California Polytechnic State University San Luis Obispo Spring Quarter 2025.
- Size
- 69 × 69 mm
- Copper layers
- 4
- Thickness
- 1.6 mm
- Parts
- 88
- Nets
- 92
- Pads
- 327
- Tracks, vias
- 569, 122
- Pours
- 15
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 13 Jun 2025
- Updated
- 14 Jun 2025
Overview
Wall E motherboard is an open-source printed circuit board by ArathBV, from the ArathBV/Project-WALLE repository on GitHub. It is a 4-layer board of 69 × 69 mm with 88 parts on 92 nets, routed with 569 tracks and 122 vias.
It is built around the DRV8838DSG, BNO055 and SI4435FDY-T1-GE3(ES). Its parts include 28 capacitors, 21 resistors, 6 ICs, 3 diodes and 3 switches. It belongs with the computers and single-board computers boards and the STM32 boards of this library.
Main components
3
DRV8838DSG
WSON-8-EP(2x2)-40℃~+85℃ 1.8A 1.8A 1.8V~7V 280mΩ 5nA Current sensing/regulation function、Active braking function Yes WSON-8-EP(2x2) Brushed DC Motor Drivers ROHSTexas InstrumentsMotor Driver ICs
BNO055
LGA-28(3.8x5.2)-40℃~+85℃ 2.4V~3.6V 40uA I2C、UART IMU X,Y,Z X,Y,Z ±16g ±2000dps LGA-28(3.8x5.2) Accelerometers ROHSBosch SensortecAccelerometers
SI4435FDY-T1-GE3(ES)
SOP-8SOP-8 MOSFETs ROHSElecSuperMOSFETs
README
README.mdProject-WALLE
Authors: Arath Villanueva, Devon Bolt
Repository Overview
- This repository contains a folder of Doxygen items, WALL-E source code found in Codes, and Hardware Design aspects both mechanical and electrical in the Hardware folder.
Project Website and Documentation
Project in depth details and website https://arathbv.github.io/Project-WALLE/index.html
Parts
88| Qty | Value | Footprint | References |
|---|---|---|---|
| 14 | 0.1u | Capacitor_SMD:C_0603_1608Metric | C8, C10, C12, C13, C16, C17, C18, C19, C20, C23, C24, C25, C28, C30 |
| 10 | 10k | Resistor_SMD:R_0603_1608Metric | R5, R6, R7, R8, R9, R11, R14, R17, R20, R21 |
| 5 | 22u | Capacitor_THT:CP_Radial_D5.0mm_P2.00mm | C2, C9, C11, C27, C29 |
| 4 | Conn_01x03_Socket | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | ArmL1, ArmR1, HandL1, HandR1 |
| 4 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 3 | 60 | Resistor_SMD:R_0603_1608Metric | R3, R4, R15 |
| 3 | LED | LED_SMD:LED_0603_1608Metric | D1, D2, D3 |
| 3 | TestPoint_Small | TestPoint:TestPoint_Pad_D1.0mm | TP1, TP2, TP3 |
| 2 | 10k 1% | Resistor_SMD:R_0603_1608Metric | R2, R13 |
| 2 | 12p | Capacitor_SMD:C_0603_1608Metric | C6, C7 |
| 2 | 2.2k | Resistor_SMD:R_0603_1608Metric | R18, R19 |
| 2 | 22p | Capacitor_SMD:C_0603_1608Metric | C21, C22 |
| 2 | 32.768kHz | Crystal:Crystal_SMD_3215-2Pin_3.2x1.5mm | Y2, Y3 |
| 2 | 4.3p | Capacitor_SMD:C_0603_1608Metric | C4, C5 |
| 2 | Conn_01x04_Socket | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | IMU1, Range1 |
| 2 | Conn_01x06_Socket | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Vertical | LeftMotor1, RightMotor1 |
| 2 | DRV8838 | Package_SON:WSON-8-1EP_2x2mm_P0.5mm_EP0.9x1.6mm | U3, U7 |
| 2 | SW_SPST | Connector_AMASS:AMASS_XT30PW-F_1x02_P2.50mm_Horizontal | SW1, SW2 |
| 1 | 100k | Resistor_SMD:R_0603_1608Metric | R10 |
| 1 | 10u | Capacitor_SMD:C_0603_1608Metric | C1 |
| 1 | 10uH | Inductor_SMD:L_1008_2520Metric | L1 |
| 1 | 16.5k 1% | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | 2.2u | Capacitor_SMD:C_0603_1608Metric | C26 |
| 1 | 25MHz | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | 4.7u | Capacitor_SMD:C_0603_1608Metric | C3 |
| 1 | 5k | Resistor_SMD:R_0603_1608Metric | R16 |
| 1 | 73.2k 1% | Resistor_SMD:R_0603_1608Metric | R12 |
| 1 | BNO055 | Package_LGA:LGA-28_5.2x3.8mm_P0.5mm | U6 |
| 1 | Conn_01x02 | Connector_AMASS:AMASS_XT30PW-M_1x02_P2.50mm_Horizontal | J1 |
| 1 | Conn_01x02_Socket | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Horizontal | UART1 |
| 1 | Conn_01x06_Socket | Connector_PinHeader_2.54mm:PinHeader_1x06_P2.54mm_Horizontal | STLink1 |
| 1 | Conn_01x08_Socket | Connector_PinHeader_2.54mm:PinHeader_1x08_P2.54mm_Vertical | Camera1 |
| 1 | Fuse | Fuse:Fuseholder_Blade_Mini_Keystone_3568 | F1 |
| 1 | IFDC5050HZER270M | Wall_E_footprints:IND_IFDC5050HZER_VIS | L2 |
| 1 | LM1085-ADJ | Package_TO_SOT_SMD:TO-263-3_TabPin2 | U1 |
| 1 | LOGO | LOGO | G*** |
| 1 | SI4435FDY-T1-GE3 | Wall_E_footprints:SO-8_VIS | Q1 |
| 1 | STM32F411RCTx | Package_QFP:LQFP-64_10x10mm_P0.5mm | U2 |
| 1 | SW_SPST | Button_Switch_SMD:SW_SPST_PTS645 | SW3 |
| 1 | TPS561243DRLR | Wall_E_footprints:DRL0006A-MFG | U8 |
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Questions
How big is the Wall E motherboard PCB?
It measures 69 × 69 mm and has 4 copper layers, 1.6 mm thick.
What parts does the Wall E motherboard use?
88 parts, built around the DRV8838DSG, BNO055 and SI4435FDY-T1-GE3(ES). 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 Wall E motherboard KiCad files?
From the ArathBV/Project-WALLE repository on GitHub, at the commit this page was made from: the board is Hardware/WALLE_PCB/Wall_E_motherboard.kicad_pcb and its schematic Hardware/WALLE_PCB/Power Regulation.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Wall E motherboard design in my own project?
Its repository states no licence, so its author keeps all rights: ask ArathBV before reusing the design.