4 layers89 × 60.8 mm
Buck
Tim4769/Microver
Swiss Rover Challenge rover project with final electronics, mechanical handoff files, PCB validation firmware, and shared project assets.
68 parts
4 layers56 × 61 mm
Protection
Tim4769/MicroverSwiss Rover Challenge rover project with final electronics, mechanical handoff files, PCB validation firmware, and shared project assets.
- Size
- 56 × 61 mm
- Copper layers
- 4
- Thickness
- 1.57 mm
- Parts
- 39
- Nets
- 21
- Pads
- 92
- Tracks, vias
- 154, 269
- Pours
- 6
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 1 Feb 2025
- Updated
- 6 Aug 2026
Overview
Protection is an open-source printed circuit board by Tim4769, from the Tim4769/Microver repository on GitHub. It is a 4-layer board of 56 × 61 mm with 39 parts on 21 nets, routed with 154 tracks and 269 vias.
It is built around the LM74700QDBVRQ1, CSD19536KTT and 1N4148W. Its parts include 15 resistors, 10 capacitors, 4 diodes, 3 ICs and 3 transistors. It belongs with the robots and motor control boards of this library.
Main components
3
LM74700QDBVRQ1
SOT-23-6-40℃~+150℃ 11mA 15V 2.37A 20mV 3.2V~65V 65V 80uA External FET Reverse current blocking、Reverse polarity protection、With enable SOT-23-6 ORing Controllers ROHSTexas InstrumentsPower Distribution Switches
CSD19536KTT
TO-263-3-55℃~+175℃ 1 N-channel 100V 12nF 153nC@10V 2.2mΩ@6V 2.37nF 200A 3.2V 375W 61pF N-Channel TO-263-3 MOSFETs ROHSTexas InstrumentsMOSFETs
1N4148W
SOD-123150mA 1A 1V@50mA 1uA@75V 400mW 4ns 75V Independent SOD-123 Switching Diodes ROHSSTMicroelectronicsSwitching Diodes
README
README.mdMicrover
Microver is a compact rover built for the Swiss Rover Challenge. This repository collects the project's electronics, mechanical CAD, software scaffold, PCB test firmware, photos, and shared assets in one place.
Project
- Competition: Swiss Rover Challenge, Switzerland's rover competition for teams of 5 high school students.
- 2025 result: 3rd place.
- 2026 result: 1st place.
- Main disciplines: electronics, mechanical design, and software.
Start Here
| Area | Path | Contents |
|---|---|---|
| Electronics | hardware/final/README.md | Active PCB revisions, KiCad projects, manufacturing outputs, and validation notes. |
| Mechanical | mechanical/README.md | Rover assemblies, wheel pods, chassis parts, mechanisms, mounts, and STEP exports. |
| Software | software/ | Python rover-control scaffold with camera and control services. |
| PCB test firmware | hardware/pcb_testing_firmware/README.md | Arduino sketches and docs for board bring-up and electronics validation. |
| Power diagrams | hardware/flow_charts/README.md | Power-system flow charts and supporting diagrams. |
Current Snapshot
Electronics
- Manufacturing-ready PCB work is under
hardware/final/; archived board spins live underhardware/archive/. - The active stack covers protection Rev B, boost Rev C, buck Rev C, high-side OR-ing Rev A, compute Rev A, and final control Rev A.
Mechanical
- Modular CAD lives in
mechanical/assemblies/andmechanical/components/. - The rover uses field-serviceable wheel pods, aluminium extrusion rails, custom 3D-printed parts, and integrated mounts for electronics, sensors, and mechanisms.
Software
software/is the autonomy-ready rover software workspace for control, camera, perception, navigation, and system integration.hardware/pcb_testing_firmware/contains electronics bring-up and validation sketches only; it is separate from the final software stack.
Repository Map
hardware/- PCB designs, manufacturing files, archived board revisions, power diagrams, and PCB validation firmware.mechanical/- CAD assemblies, exported STEP components, manufacturing notes, and mechanical integration references.software/- Raspberry Pi control software scaffold and future rover software workspace.photos/- Build, test, and competition photos.logo/- Current and legacy logo assets.jingle/- Project audio assets.Microver_presentation_final.pdf- Final presentation and system overview.
Maintenance Notes
- Keep generated PCB outputs inside the relevant board revision folder.
- Update CAD references when board dimensions, connector orientation, sensor placement, or mounting details change.
- Keep editable CAD, exported review files, and assembly notes together.
- Keep PCB validation sketches separate from final rover software.
- Update this README when top-level folders move or new subsystem entry points are added.
License / Contact
All rights reserved. No permission is granted to use, copy, modify, or distribute this repository or its contents without prior written consent. See LICENSE for exact terms.
Contact: Tim Wang - timwang007@outlook.com.
Parts
39| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 100nF | Capacitor_SMD:C_0603_1608Metric | C2, C5, C8, C10 |
| 3 | 220uF | Capacitor_THT:CP_Radial_D10.0mm_P5.00mm | C1, C4, C7 |
| 3 | CSD19536KTT | Protection_Footprint_Library:KTT0002A | Q1, Q2, Q3 |
| 2 | 10Ω | Resistor_SMD:R_0603_1608Metric | R11, R12 |
| 2 | 47kΩ | Resistor_SMD:R_0603_1608Metric | R1, R5 |
| 2 | 5mΩ | Resistor_SMD:R_2512_6332Metric | R9, R10 |
| 2 | 620Ω | Resistor_SMD:R_0603_1608Metric | R2, R6 |
| 2 | Conn_01x02_Socket | TerminalBlock:TerminalBlock_MaiXu_MX126-5.0-02P_1x02_P5.00mm | J1, J3 |
| 2 | D_TVS | Diode_SMD:D_SMB | D1, D2 |
| 1 | 100kΩ | Resistor_SMD:R_0603_1608Metric | R14 |
| 1 | 180Ω | Resistor_SMD:R_0603_1608Metric | R3 |
| 1 | 1N4148W | Diode_SMD:D_SOD-123 | D4 |
| 1 | 1kΩ | Resistor_SMD:R_0603_1608Metric | R15 |
| 1 | 1uF | Capacitor_SMD:C_0805_2012Metric | C3 |
| 1 | 22kΩ | Resistor_SMD:R_0603_1608Metric | R13 |
| 1 | 33Ω | Resistor_SMD:R_0603_1608Metric | R8 |
| 1 | 4.3kΩ | Resistor_SMD:R_0603_1608Metric | R7 |
| 1 | 47nF | Capacitor_SMD:C_0603_1608Metric | C9 |
| 1 | 6.8uF | Capacitor_SMD:C_0603_1608Metric | C6 |
| 1 | 7.5kΩ | Resistor_SMD:R_0603_1608Metric | R4 |
| 1 | Conn_01x02_Socket | Connector_PinHeader_2.54mm:PinHeader_1x02_P2.54mm_Vertical | J2 |
| 1 | D_Schottky | Diode_SMD:D_SMC | D3 |
| 1 | LM5069MMX-2/NOPB | Protection_Footprint_Library:MUB10A | U2 |
| 1 | LM74700QDBVRQ1 | Protection_Footprint_Library:DBV0006A_N | U1 |
| 1 | LOGO | LOGO | G*** |
| 1 | MMBT5401LT1G | Protection_Footprint_Library:SOT-23-3_1P4X3P040_ONS | U3 |
Questions
How big is the Protection PCB?
It measures 56 × 61 mm and has 4 copper layers, 1.57 mm thick.
What parts does the Protection use?
39 parts, built around the LM74700QDBVRQ1, CSD19536KTT and 1N4148W. 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 Protection KiCad files?
From the Tim4769/Microver repository on GitHub, at the commit this page was made from: the board is hardware/archive/protection_board_manufacturing_rev_a/Protection_2026_01_24_095519/Protection.kicad_pcb and its schematic hardware/archive/boost_manufacturing_rev_a/Boost converter-2026-01-21_080914/Boost converter.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Protection design in my own project?
Its repository states no licence, so its author keeps all rights: ask Tim4769 before reusing the design.
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