BarnacleBoy
ef9a7f40a8
- Mechanical HDMI A/B switch for internal/external display toggle - DisplayLink rejected: no ARM drivers exist - 10-port layout split across 4 surfaces - Port side: 4x USB-A, 1x USB-C data, 1x USB-C PD out - Starboard: Ethernet, HDMI out, 3.5mm audio - Bow: USB-C power input + fan exhaust - Stern: handle, SD reader, Kensington lock - Updated BOM with HDMI switch, panel-mount cables, SD reader - Cost estimate now ~58
91 lines
No EOL
3.1 KiB
Markdown
91 lines
No EOL
3.1 KiB
Markdown
# K501U Cyberdeck
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A cyberdeck built from salvaged ASUS K501U laptop components and Orange Pi 5 SBC.
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## Project Status
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**Phase:** Component acquisition and planning
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- [x] Salvage analysis (K501U components)
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- [x] Display identification and controller board ordered
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- [x] SBC selection (Orange Pi 5 16GB)
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- [x] Storage architecture planned
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- [x] USB expansion design
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- [x] Case nomenclature and orientation defined
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- [x] Build approach: wooden case + salvaged lid canopy
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- [x] Input device: ThinkPad TrackPoint keyboard
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- [x] Power system: IP5389 board + 18650 cells (preliminary)
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- [x] Video output: mechanical HDMI A/B switch
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- [x] Port layout defined (10 ports + SD reader + Kensington)
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- [ ] Case design (dimensions, internal layout)
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- [ ] Power system board selection and testing
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- [ ] Bow wall design (power input, fan exhaust)
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- [ ] Fabrication
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- [ ] Software configuration
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## Components
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### Salvaged from ASUS K501U
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| Component | Model | Status |
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|-----------|-------|--------|
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| Display | Innolux N156HGE-EAB (Rev. C2) | Controller board ordered |
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| Hinge mechanism | Original K501U | Available |
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| Webcam | K501U module | Available |
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| WiFi antenna | K501U | Available |
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| Cooling fan | K501U | Available |
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**Not reused:**
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- RAM (DDR3L soldered, incompatible with modern SBCs)
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- SSD (owner repurposed)
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- WiFi card (Intel 7265NGW, no E-key slot on OPi5)
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### New Components
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| Component | Selection | Status |
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|-----------|-----------|--------|
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| SBC | Orange Pi 5 (base, 16GB) | eBay bid pending |
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| Display controller | 30-pin eDP to HDMI | Ordered (~$24) |
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| Storage (boot) | MicroSD 64GB Endurance | To purchase |
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| USB hub | Powered 7-port USB 3.0 | To purchase |
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| Storage (data) | USB 3.0 SSD enclosure | To purchase |
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## Documentation
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- [Salvage Analysis](docs/salvage-analysis.md) - K501U component breakdown
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- [SBC Selection](docs/sbc-selection.md) - Orange Pi 5 details and rationale
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- [Storage Architecture](docs/storage-architecture.md) - SD card + USB storage plan
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- [USB Expansion](docs/usb-expansion.md) - Hub selection and port allocation
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- [Parts List](docs/parts-list.md) - Bill of materials with costs
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- [Design Decisions](docs/design-decisions.md) - Build approach, nomenclature, layout
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- [Power System](docs/power-system.md) - IP5389 battery management decision
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- [Port Layout](docs/port-layout.md) - External port placement and allocation
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## Quick Reference
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### Display
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- **Panel:** Innolux N156HGE-EAB (Rev. C2)
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- **Size:** 15.6" 1920×1080
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- **Interface:** 30-pin eDP
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- **Controller:** Standard 30-pin eDP to HDMI (~$24)
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### SBC
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- **Board:** Orange Pi 5 (RK3588S, base model, 16GB RAM)
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- **Storage:** MicroSD slot + USB 3.0 external
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- **USB:** 1× USB 3.0, 2× USB 2.0 native
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- **Power:** USB-C PD via IP5389 power board, 18650 cells
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### Cost Estimate
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| Category | Cost |
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|----------|------|
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| SBC | ~$104 |
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| Display controller | ~$24 |
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| Storage (SD + hub + enclosure) | ~$34 |
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| Power system (board + cells + fuse + charger) | ~$44 |
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| HDMI switch + panel cables + SD reader | ~$33 |
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| **Subtotal** | **~$258** |
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(Excludes case materials and misc hardware. Battery included in power system.) |