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update all docs: Orange Pi 3B 8GB purchased (89)

Browse source 
- docs/sbc-selection.md: full rewrite for OPi 3B specs (RK3566, 8GB, 256GB eMMC, built-in WiFi)
- README.md: SBC description, checklist, components table, quick ref, cost estimate
- docs/parts-list.md: SBC marked purchased, eMMC/controller/WiFi changes
- docs/design-decisions.md: WiFi exclusion reason, native eDP, power input
- docs/salvage-analysis.md: WiFi card not needed, cooling fan, summary tables
- docs/storage-architecture.md: rewritten for 256GB eMMC primary boot
- docs/usb-expansion.md: 2x USB3 native, port allocation, power budget
- docs/port-layout.md: OPi3B port differences (eDP, power-only USB-C, built-in WiFi)
- docs/power-system.md: lower power draw context
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33
README.md
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@ -1,6 +1,6 @@
# K501U Cyberdeck # K501U Cyberdeck
A cyberdeck built from salvaged ASUS K501U laptop components and Orange Pi 5 SBC. A cyberdeck built from salvaged ASUS K501U laptop components and Orange Pi 3B SBC.
## Project Status ## Project Status
@ -8,7 +8,8 @@ A cyberdeck built from salvaged ASUS K501U laptop components and Orange Pi 5 SBC
- [x] Salvage analysis (K501U components) - [x] Salvage analysis (K501U components)
- [x] Display identification and controller board ordered - [x] Display identification and controller board ordered
- [x] SBC selection (Orange Pi 5 16GB) - [x] SBC selection (Orange Pi 3B 8GB with 256GB eMMC)
- [x] SBC purchased and delivered ($189)
- [x] Storage architecture planned - [x] Storage architecture planned
- [x] USB expansion design - [x] USB expansion design
- [x] Case nomenclature and orientation defined - [x] Case nomenclature and orientation defined
@ -38,15 +39,15 @@ A cyberdeck built from salvaged ASUS K501U laptop components and Orange Pi 5 SBC
**Not reused:** **Not reused:**
- RAM (DDR3L soldered, incompatible with modern SBCs) - RAM (DDR3L soldered, incompatible with modern SBCs)
- SSD (owner repurposed) - SSD (owner repurposed)
- WiFi card (Intel 7265NGW, no E-key slot on OPi5) - WiFi card (OPi3B has built-in WiFi+BT — no external card needed)
### New Components ### New Components
| Component | Selection | Status | | Component | Selection | Status |
|-----------|-----------|--------| |-----------|-----------|--------|
| SBC | Orange Pi 5 (base, 16GB) | eBay bid pending | | SBC | Orange Pi 3B (8GB, RK3566, 256GB eMMC) | Purchased ($189) |
| Display controller | 30-pin eDP to HDMI | Ordered (~$24) | | Display controller | 30-pin eDP to HDMI | Ordered (~$24) — may be unnecessary, OPi3B has native eDP |
| Storage (boot) | MicroSD 64GB Endurance | To purchase | | Storage (boot) | 256GB eMMC (onboard) | Incl. with SBC |
| USB hub | Powered 7-port USB 3.0 | To purchase | | USB hub | Powered 7-port USB 3.0 | To purchase |
| Storage (data) | USB 3.0 SSD enclosure | To purchase | | Storage (data) | USB 3.0 SSD enclosure | To purchase |
@ -72,20 +73,22 @@ A cyberdeck built from salvaged ASUS K501U laptop components and Orange Pi 5 SBC
### SBC ### SBC
- **Board:** Orange Pi 5 (RK3588S, base model, 16GB RAM) - **Board:** Orange Pi 3B (RK3566, 8GB RAM, 256GB eMMC)
- **Storage:** MicroSD slot + USB 3.0 external - **Storage:** 256GB eMMC onboard + MicroSD slot + M.2 M-key
- **USB:** 1× USB 3.0, 2× USB 2.0 native - **USB:** 2× USB 3.0, 2× USB 2.0 native
- **Power:** USB-C PD via IP5389 power board, 18650 cells - **WiFi/BT:** Built-in WiFi 5 + BT 5.0 (no dongle needed)
- **Power:** USB-C 5V/3A via IP5389 power board, 18650 cells
- **Draw:** ~3-5W under load
### Cost Estimate ### Cost Estimate
| Category | Cost | | Category | Cost |
|----------|------| |----------|------|
| SBC | ~$104 | | SBC (w/ 256GB eMMC, WiFi+BT) | $189 |
| Display controller | ~$24 | | Display controller | ~$24 (may be optional — OPi3B has native eDP) |
| Storage (SD + hub + enclosure) | ~$34 | | Storage (hub + enclosure) | ~$30 |
| Power system (board + cells + fuse + charger) | ~$44 | | Power system (board + cells + fuse + charger) | ~$44 |
| HDMI switch + panel cables + SD reader | ~$33 | | HDMI switch + panel cables + SD reader | ~$33 |
| **Subtotal** | **~$258** | | **Subtotal** | **~$320** |
(Excludes case materials and misc hardware. Battery included in power system.) (Excludes case materials and misc hardware. $189 SBC cost is actual after tax/shipping.)

17
docs/design-decisions.md
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@ -10,7 +10,7 @@ Wooden case with salvaged laptop lid (screen + hinge) as the canopy. Approximate
- **Keyboard/trackpad:** Proprietary connectors, not reusable. - **Keyboard/trackpad:** Proprietary connectors, not reusable.
- **RAM:** DDR3L soldered, wrong generation. - **RAM:** DDR3L soldered, wrong generation.
- **SSD:** Owner repurposed. - **SSD:** Owner repurposed.
- **WiFi card:** Intel 7265NGW needs M.2 E-key, OPi5 base lacks it. - **WiFi card:** Intel 7265NGW — OPi3B has built-in WiFi+BT, no external card needed.
## Case Orientation & Nomenclature ## Case Orientation & Nomenclature
@ -36,7 +36,7 @@ User sits at the **stern**, facing the **bow**. Hinge axis runs port-to-starboar
### Bow Wall Functions ### Bow Wall Functions
- Power input (USB-C for IP5389 board charging) - Power input (5V USB-C for charging)
- Exhaust fans blowing away from user - Exhaust fans blowing away from user
- Heat management surface - Heat management surface
@ -48,9 +48,20 @@ Stern edge (lip). Screen is lightweight, hinge is rigid, and a lid latch is plan
IP5389 power bank board (preliminary). All-in-one: charging, BMS, USB-C PD output. See [power-system.md](power-system.md) for details. IP5389 power bank board (preliminary). All-in-one: charging, BMS, USB-C PD output. See [power-system.md](power-system.md) for details.
## Display Connection
The Orange Pi 3B has a **native eDP port** in addition to HDMI. This means:
- The Innolux N156HGE-EAB panel (30-pin eDP) may connect directly — bypassing the external controller board
- Needs verification: the OPi3B's eDP connector type and pinout must match the panel
- If compatible, saves ~$24 and eliminates an external component
- If not, fallback is the eDP-to-HDMI controller board (already ordered)
See [sbc-selection.md](sbc-selection.md) for eDP compatibility notes.
## Video Output ## Video Output
Mechanical HDMI A/B switch (passive, no power). Routes OPi5's single HDMI to either the internal eDP-to-HDMI controller or a panel-mount HDMI jack on the starboard side. DisplayLink doesn't work on ARM — no drivers exist. Dual simultaneous display is not possible on the base OPi5. Mechanical HDMI A/B switch (passive, no power). Routes OPi3B's single HDMI to either the internal display (via eDP or eDP-to-HDMI controller) or a panel-mount HDMI jack on the starboard side. DisplayLink doesn't work on ARM — no drivers exist. Dual simultaneous display is not possible on the OPi3B (single HDMI output).
## Input Device ## Input Device

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docs/parts-list.md
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@ -6,17 +6,16 @@
| Item | Specification | Source | Est. Cost | Status | | Item | Specification | Source | Est. Cost | Status |
|------|--------------|--------|-----------|--------| |------|--------------|--------|-----------|--------|
| SBC | Orange Pi 5 16GB (base) | eBay | $99 + $5 shipping | Bid pending | | SBC | Orange Pi 3B 8GB + 256GB eMMC | Amazon | $189 | **Purchased** |
| Display controller | 30-pin eDP to HDMI | Amazon/eBay | $24 | Ordered | | Display controller | 30-pin eDP to HDMI | Amazon/eBay | $24 | Ordered — may be optional (OPi3B has native eDP) |
| MicroSD card | 64GB Endurance | Amazon | $10-12 | To purchase |
### Salvaged from K501U ### Salvaged from K501U
| Item | Status | Notes | | Item | Status | Notes |
|------|--------|-------| |------|--------|-------|
| Display (Innolux N156HGE-EAB) | Available | Controller board ordered | | Display (Innolux N156HGE-EAB) | Available | May connect via native eDP on OPi3B |
| Hinge mechanism | Available | Intact | | Hinge mechanism | Available | Intact |
| WiFi antenna | Available | In hinge | | WiFi antenna | Available | OPi3B has built-in WiFi — antenna may still be useful for signal |
| Webcam | Available | In bezel | | Webcam | Available | In bezel |
| Cooling fan | Available | 4-pin PWM | | Cooling fan | Available | 4-pin PWM |
@ -35,13 +34,14 @@
| IP5389 power board | USB-C PD, 3S, bare PCB | AliExpress | $8-15 | Preliminary selection | | IP5389 power board | USB-C PD, 3S, bare PCB | AliExpress | $8-15 | Preliminary selection |
| 18650 cells | 3S or 3S2P, quality brand | User's pick | $12-24 | To purchase | | 18650 cells | 3S or 3S2P, quality brand | User's pick | $12-24 | To purchase |
| 5A blade fuse + holder | Automotive | Amazon | $2 | To purchase | | 5A blade fuse + holder | Automotive | Amazon | $2 | To purchase |
| USB-C wall charger | 45W+ PD, for charging | Amazon | $10-15 | To purchase | | USB-C wall charger | 5V/3A, for testing | Amazon | $8-12 | To purchase |
### Networking ### Networking
| Item | Specification | Source | Est. Cost | Status | | Item | Specification | Source | Est. Cost | Status |
|------|--------------|--------|-----------|--------| |------|--------------|--------|-----------|--------|
| WiFi dongle | USB, Linux-compatible | Amazon | $10-15 | To purchase | | WiFi | Built-in OPi3B | Included | $0 | **Built-in** |
| WiFi antenna | K501U salvage or new | — | $0 | May reuse K501U antenna |
### Video & Case Integration ### Video & Case Integration
@ -51,7 +51,7 @@
| Panel-mount cables | USB-A, USB-C, HDMI, Ethernet, audio | Amazon | $15-25 | To purchase | | Panel-mount cables | USB-A, USB-C, HDMI, Ethernet, audio | Amazon | $15-25 | To purchase |
| Panel-mount SD reader | USB 3.0 | Amazon | $5-8 | To purchase | | Panel-mount SD reader | USB 3.0 | Amazon | $5-8 | To purchase |
| Item | Purpose |Source | Est. Cost | | Item | Purpose | Source | Est. Cost |
|------|---------|--------|-----------| |------|---------|--------|-----------|
| Heatsink + fan | Cooling | AliExpress | $5-10 | | Heatsink + fan | Cooling | AliExpress | $5-10 |
| Panel-mount cables | Case integration | Amazon | $10-20 | | Panel-mount cables | Case integration | Amazon | $10-20 |
@ -61,36 +61,32 @@
## Cost Summary ## Cost Summary
### Minimum Viable Build ### Actual Spend
| Item | Cost | Status |
|------|------|--------|
| Orange Pi 3B 8GB + 256GB eMMC | $189 | **Purchased** |
| Display controller | $24 | Ordered (may be optional) |
| **Spent so far** | **$213** | |
### Remaining to Purchase
| Category | Cost | | Category | Cost |
|----------|------| |----------|------|
| SBC | $104 | | Storage (USB enclosure) | ~$12 |
| Display controller | $24 | | USB hub (powered 10-port) | ~$22 |
| MicroSD | $12 | | Power system (board+cells+fuse+charger) | ~$44 |
| USB hub | $22 | | HDMI switch | ~$10 |
| USB enclosure | $12 | | Panel-mount cables + SD reader | ~$23 |
| Power system (board+cells+fuse+charger) | $44 | | **Remaining** | **~$111** |
| WiFi dongle | $12 |
| HDMI switch | $10 |
| Panel-mount cables + SD reader | $23 |
| **Subtotal** | **$258** |
### With Optional Items ### Total Project
| Category | Cost | | | |
|----------|------| |---|----|
| Base build | $258 | | Spent | $213 |
| Heatsink/cooling | $10 | | Remaining | ~$111 |
| **Total** | **$268** | | **Estimated total** | **~$324** |
### Future Additions
| Category | Cost |
|----------|------|
| Battery pack (portable) | Integrated in base build |
| Case materials | TBD |
| Custom PCB | TBD |
--- ---
@ -98,21 +94,20 @@
| Item | Date Ordered | Est. Arrival | Source | Tracking | | Item | Date Ordered | Est. Arrival | Source | Tracking |
|------|-------------|--------------|--------|----------| |------|-------------|--------------|--------|----------|
| Orange Pi 3B 8GB + 256GB eMMC | Before May 24 | Delivered | Amazon | — |
| Display controller board | TBD | 2-4 weeks | Amazon/eBay | TBD | | Display controller board | TBD | 2-4 weeks | Amazon/eBay | TBD |
## Pending Purchases ## Pending Purchases
- MicroSD card - Powered USB hub (10-port USB 3.0)
- Powered USB hub
- USB enclosure or flash drive - USB enclosure or flash drive
- IP5389 power board + 18650 cells - IP5389 power board + 18650 cells
- 5A fuse + holder - 5A fuse + holder
- USB-C PD wall charger (45W+) - USB-C wall charger (5V/3A)
- Powered 10-port USB 3.0 hub
- Mechanical HDMI A/B switch - Mechanical HDMI A/B switch
- Panel-mount cables (USB-A, USB-C, HDMI, Ethernet, audio) - Panel-mount cables (USB-A, USB-C, HDMI, Ethernet, audio)
- Panel-mount SD card reader - Panel-mount SD card reader
- WiFi dongle - Heatsink for RK3566
--- ---
@ -120,7 +115,6 @@
*Add actual links when ordering:* *Add actual links when ordering:*
- Orange Pi 5: eBay search for "Orange Pi 5 16GB" - Orange Pi 3B: Amazon "Orange Pi 3B 8GB 256GB eMMC"
- Display controller: Amazon search "N156HGE-EAB controller board" or "30-pin eDP to HDMI" - Display controller: Amazon search "N156HGE-EAB controller board" or "30-pin eDP to HDMI"
- USB hub: Amazon "Sabrent 7-port USB 3.0 powered" - USB hub: Amazon "Sabrent 7-port USB 3.0 powered"
- MicroSD: Amazon "SanDisk Endurance 64GB" or "Samsung PRO Endurance 64GB"

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docs/port-layout.md
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@ -2,7 +2,7 @@
## Overview ## Overview
10 accessible ports + SD reader + Kensington lock, split across four case surfaces. 10 accessible ports + SD reader + Kensington lock, split across four case surfaces. Built-in WiFi+BT eliminates need for USB dongles.
## Port Side (Left, Facing Bow) ## Port Side (Left, Facing Bow)
@ -10,7 +10,7 @@ Data connections. "Plug and unplug frequently" zone.
| Port | Count | Source | Notes | | Port | Count | Source | Notes |
|------|-------|--------|-------| |------|-------|--------|-------|
| USB-A 3.0 | 4 | Powered hub | Flash drives, peripherals, keyboard, hardware | | USB-A 3.0 | 4 | Powered hub | Flash drives, peripherals, hardware |
| USB-C (data) | 1 | Powered hub | Modern peripherals, data transfer | | USB-C (data) | 1 | Powered hub | Modern peripherals, data transfer |
| USB-C PD out | 1 | IP5389 board | Phone charging, 5V/??W | | USB-C PD out | 1 | IP5389 board | Phone charging, 5V/??W |
@ -20,9 +20,9 @@ Networking + AV. "Plug in and leave" zone.
| Port | Count | Source | Notes | | Port | Count | Source | Notes |
|------|-------|--------|-------| |------|-------|--------|-------|
| Ethernet RJ45 | 1 | OPi5 native | Gigabit, panel-mount extension | | Ethernet RJ45 | 1 | OPi3B native | Gigabit, panel-mount extension |
| HDMI out | 1 | HDMI A/B switch | External display, switched from internal screen | | HDMI out | 1 | HDMI A/B switch | External display, switched from internal |
| 3.5mm audio out | 1 | OPi5 native | Headphones, speakers, line-out | | 3.5mm audio out | 1 | OPi3B native | Headphones, speakers, line-out |
## Bow Wall (Back Edge, Spine Side) ## Bow Wall (Back Edge, Spine Side)
@ -30,7 +30,7 @@ Power and cooling. No data ports.
| Feature | Notes | | Feature | Notes |
|---------|-------| |---------|-------|
| USB-C power input | For IP5389 board charging | | USB-C power input | For IP5389 board charging (5V/3A) |
| Fan exhaust grilles | Blowing away from user | | Fan exhaust grilles | Blowing away from user |
## Stern Edge (Front Edge, Lip) ## Stern Edge (Front Edge, Lip)
@ -48,12 +48,15 @@ User-facing. Clean for typing.
| Component | Connection | | Component | Connection |
|-----------|------------| |-----------|------------|
| Powered USB hub (10-port) | Decased, wired internally. Feeds all USB-A and USB-C data ports. | | Powered USB hub (10-port) | Decased, wired internally. Feeds all USB-A and USB-C data ports. |
| HDMI A/B switch (mechanical) | Passive toggle. OPi5 HDMI in, two outputs (internal controller + starboard panel jack). | | HDMI A/B switch (mechanical) | Passive toggle. OPi3B HDMI in, two outputs (internal display + starboard panel jack). |
| eDP-to-HDMI controller | Connected to A/B switch output A. Drives internal display. | | eDP-to-HDMI controller | Connected to A/B switch output A. Drives internal display — **may be unnecessary if native OPi3B eDP works with panel** |
## Constraints ## Constraints
- OPi5 has **one HDMI output**. The A/B switch selects internal or external — not both simultaneously. - OPi3B has **one HDMI output**. The A/B switch selects internal or external — not both simultaneously.
- OPi3B has a **native eDP port** — if the Innolux N156HGE-EAB panel pinout matches, the external controller board is not needed.
- DisplayLink USB graphics adapters **do not work on ARM Linux** (no drivers). Not a viable path for dual display. - DisplayLink USB graphics adapters **do not work on ARM Linux** (no drivers). Not a viable path for dual display.
- Dual simultaneous display would require a different SBC (OPi5 Plus has 2× HDMI) or x86 board. - Dual simultaneous display would require a dual-HDMI SBC.
- USB-C on the OPi5 is power-only in this build (consumed by IP5389 board). All USB data goes through the powered hub. - USB-C on the OPi3B is **power only** — no DisplayPort alt mode. All video goes through HDMI or native eDP.
- Built-in WiFi 5 + BT 5.0 on the OPi3B — no USB dongles needed for wireless connectivity.
- Two native USB 3.0 ports available for direct connections (keyboard, mouse) without hub contention.

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docs/power-system.md
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@ -20,7 +20,7 @@ All-in-one power management PCB. Replaces separate charger module, BMS, and boos
``` ```
USB-C wall charger → IP5389 board → 18650 cells (3S or 3S2P) USB-C wall charger → IP5389 board → 18650 cells (3S or 3S2P)
↓ (passthrough) ↓ (passthrough)
USB-C PD output → OPi5 (5V) + peripherals USB-C PD output → OPi3B (5V) + peripherals
``` ```
One board, one cell pack, one output cable to the SBC. No separate modules to wire together. One board, one cell pack, one output cable to the SBC. No separate modules to wire together.
@ -33,6 +33,15 @@ One board, one cell pack, one output cable to the SBC. No separate modules to wi
- Protection: overcharge, overdischarge, short circuit, thermal - Protection: overcharge, overdischarge, short circuit, thermal
- Price: $8–15 bare PCB - Price: $8–15 bare PCB
## OPi3B Power Context
The Orange Pi 3B draws ~3-5W under load (vs OPi5's ~8W), which simplifies the battery system:
- Lower peak current means the IP5389 board doesn't need to push its limits
- A smaller cell pack (3S vs 3S2P) may suffice
- Less heat generated, less thermal management needed
- The OPi3B's 5V/3A input spec is well within what a USB-C PD board can provide
## Cell Configuration ## Cell Configuration
TBD — need to select specific board first. Likely 3S (3 cells in series) or 3S2P (6 cells, pairs in series). 3S2P with quality 3000mAh cells gives ~6000mAh at 11.1V nominal. TBD — need to select specific board first. Likely 3S (3 cells in series) or 3S2P (6 cells, pairs in series). 3S2P with quality 3000mAh cells gives ~6000mAh at 11.1V nominal.
@ -59,7 +68,7 @@ K501U battery (B31N1429, 4240mAh, 11.4V, 3S) assessed and rejected:
- Passthrough charging not guaranteed on all models - Passthrough charging not guaranteed on all models
### UPS HAT (Waveshare / DFRobot) ### UPS HAT (Waveshare / DFRobot)
- Designed for Raspberry Pi, works via USB output with OPi5 - Designed for Raspberry Pi, works via USB output with OPi3B
- Premium price for unused GPIO header - Premium price for unused GPIO header
- Capped at 5V output, no 12V rail without extra boost converter - Capped at 5V output, no 12V rail without extra boost converter

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docs/salvage-analysis.md
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@ -82,19 +82,13 @@ The K501U had an M.2 NVMe SSD installed.
### Reusability ### Reusability
**Not directly usable with Orange Pi 5 (base model).** **Not needed — OPi3B has built-in WiFi 5 + BT 5.0.**
- Orange Pi 5 Plus has E-key M.2 slot → WiFi card works The Intel 7265NGW card is not required because the Orange Pi 3B has integrated WiFi and Bluetooth. The K501U's dual-band antenna (U.FL connectors embedded in the hinge) may still be useful — it could be adapted to the OPi3B's onboard WiFi for better signal than the built-in PCB antenna.
- Orange Pi 5 (base) has no E-key slot → requires USB WiFi dongle
### Workaround ### Workaround
USB WiFi dongle (Linux-compatible): Not needed for WiFi — built-in covers it. If the K501U antenna can be adapted (U.FL to IPEX connector), it may improve reception over the OPi3B's onboard antenna.
- Realtek RTL8812BU (USB 3.0, AC1200)
- MediaTek MT7601U (USB 2.0, N150)
- Any dongle with in-kernel driver support
**Cost:** $10-15
--- ---
@ -123,9 +117,9 @@ USB WiFi dongle (Linux-compatible):
| Connector | Standard laptop fan connector | | Connector | Standard laptop fan connector |
**Potential reuse:** **Potential reuse:**
- Could cool Orange Pi 5 (with GPIO PWM adapter) - Could cool Orange Pi 3B (with PWM adapter)
- Requires mounting solution - RK3566 runs cooler (~3-5W) than RK3588 — passive heatsink may suffice
- Might be overkill for OPi5 power draw - Blower fan may be overkill but provides headroom
### Keyboard/Trackpad ### Keyboard/Trackpad
@ -173,9 +167,9 @@ USB WiFi dongle (Linux-compatible):
| Component | Effort | Value | | Component | Effort | Value |
|-----------|--------|-------| |-----------|--------|-------|
| **Display** | Low (with controller) | High | | **Display** | Low (with controller or native eDP) | High |
| **Hinge** | Low | Medium | | **Hinge** | Low | Medium |
| **WiFi antenna** | Low (with adapter) | Low | | **WiFi antenna** | Low (with adapter to OPi3B onboard WiFi) | Low |
### Not Reused ### Not Reused
@ -183,7 +177,7 @@ USB WiFi dongle (Linux-compatible):
|-----------|--------| |-----------|--------|
| SSD | Already repurposed | | SSD | Already repurposed |
| RAM | Wrong generation | | RAM | Wrong generation |
| WiFi card | No E-key slot on OPi5 | | WiFi card | OPi3B has built-in WiFi+BT |
| Keyboard/trackpad | Proprietary connectors | | Keyboard/trackpad | Proprietary connectors |
| Motherboard | Failed | | Motherboard | Failed |
@ -191,9 +185,8 @@ USB WiFi dongle (Linux-compatible):
| Component | Estimated Cost | | Component | Estimated Cost |
|-----------|----------------| |-----------|----------------|
| eDP controller board | $24 | | eDP controller board | $24 (may be optional — OPi3B has native eDP) |
| USB WiFi dongle | $10-15 | | SBC (Orange Pi 3B) | $189 (purchased) |
| SBC (Orange Pi 5) | $70-100 |
--- ---

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docs/sbc-selection.md
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@ -1,137 +1,113 @@
# SBC Selection: Orange Pi 5 # SBC: Orange Pi 3B
**Decision:** Orange Pi 5 (base model, non-Plus) 16GB RAM **Purchased:** Orange Pi 3B 8GB, with 256GB eMMC module
**Cost:** $189.00 (incl. tax and shipping)
**CPU:** Rockchip RK3566 (quad Cortex-A55 @ 1.8GHz, 22nm)
--- ---
## Options Considered ## Specifications
| Board | RAM | Price | NVMe | WiFi | Notes | ### SoC: Rockchip RK3566
|-------|-----|-------|------|------|-------|
|**Orange Pi 5 16GB**| 16GB | $70-100 | PCIe 2.0 M.2 | No | **Selected** |
| Orange Pi 5 Plus 16GB | 16GB | $130-150 | PCIe 3.0 M.2 | E-key slot | Better specs, higher cost |
| Raspberry Pi 5 8GB | 8GB | $80 | HAT required | No | Familiar ecosystem, less RAM |
| Rock 5B 16GB | 16GB | $140 | PCIe 3.0 M.2 | No | Higher cost |
---
## Orange Pi 5 Specifications
### Model Variants
| Model | NVMe Slot | WiFi Slot | NVMe Speed |
|-------|-----------|-----------|------------|
| Orange Pi 5 (base) | M.2 M-key (PCIe 2.0) | None | ~300 MB/s |
| Orange Pi5 Plus | M.2 M-key (PCIe 3.0) + E-key | E-key for WiFi | ~2000 MB/s |
### RK3588S SoC
| Attribute | Value | | Attribute | Value |
|-----------|-------| |-----------|-------|
| CPU | 8-core (4× Cortex-A76 + 4× Cortex-A55) | | CPU | 4× Cortex-A55 @ 1.8GHz |
| GPU | Mali-G610 MC4 | | GPU | Mali-G52 2EE |
| NPU | 6 TOPS AI accelerator | | NPU | 0.8 TOPS AI accelerator |
| Process |8nm | | Process | 22nm |
### Memory ### Memory
| Attribute | Value | | Attribute | Value |
|-----------|-------| |-----------|-------|
| Configurations | 4/8/16/32GB | | RAM | 8GB LPDDR4/LPDDR4X |
| Type | LPDDR4/LPDDR4X | | Onboard storage | 256GB eMMC module |
| Selected | 16GB |
### Storage Support ### Storage Options
| Interface | Speed | | Interface | Speed | Notes |
|-----------|-------| |-----------|-------|-------|
| MicroSD | Up to 512GB | | **eMMC** (onboard) | ~300 MB/s read | **Primary boot.** 256GB module installed. |
| M.2 NVMe (base) | PCIe 2.0 x1 (~300 MB/s) | | MicroSD | Up to 512GB | Backup/expansion |
| M.2 NVMe (Plus) | PCIe 3.0 x2 (~2000 MB/s) | | M.2 M-key | PCIe 2.0 x1 (~300 MB/s) or SATA III | NVMe or SATA SSD |
| USB 3.0 | 5 Gbps |
### Connectivity (Base Model) ### Connectivity
| Port | Count | Speed | | Port | Count | Speed / Spec | Notes |
|------|-------|-------| |------|-------|-------------|-------|
| USB 3.0 | 1 | 5 Gbps | | USB 3.0 | 2 | 5 Gbps | **Two** native USB 3.0 ports (vs 1 on OPi5) |
| USB 2.0 | 2 | 480 Mbps | | USB 2.0 | 2 | 480 Mbps | |
| USB-C | 1 | Power + DisplayPort | | USB-C | 1 | Power only (5V input) | |
| Ethernet | 1 | 1 Gbps | | Ethernet | 1 | Gigabit (RTL8211F) | |
| HDMI | 1 | 4K60 | | HDMI | 1 | 2.0, 4K60 | |
| MIPI DSI | 1 | Display | | eDP | 1 | Native eDP | **Direct panel connection possible** |
| MIPI CSI | 2 | Camera | | MIPI DSI | 1 | Display | |
| GPIO | 26-pin | I2C, SPI, UART, PWM | | MIPI CSI | 1 | Camera | |
| GPIO | 26-pin | I2C, SPI, UART, PWM | |
| WiFi | Built-in | WiFi 5 (802.11ac) | **No USB dongle needed** |
| Bluetooth | Built-in | BT 5.0 with BLE | |
### Power ### Power
| Attribute | Value | | Attribute | Value |
|-----------|-------| |-----------|-------|
| Input| USB-C PD or barrel jack | | Input | 5V USB-C only |
| Voltage | 12V (barrel), 5V (USB-C) | | Current | 3A recommended |
| Current | 2A recommended | | Typical draw | 3-5W under load |
| Typical draw |5-8W under load |
Much more power-efficient than OPi5 (~8W) — battery lasts longer, less heat.
--- ---
## Rationale ## Why This Board
### Why Orange Pi 5 (Base) ### What Changed From OPi5
1. **Cost:** $70-100 vs $130-150 for Plus The original plan was an Orange Pi 5 16GB (~$104). This OPi 3B is a different class:
2. **RAM:** 16GB excellent for desktop Linux, dev work
3. **Performance:** RK3588S significantly faster than Pi 5
4. **Availability:** Widely available on eBay with bid flexibility
### Why Not Orange Pi 5 Plus | Comparison | OPi 3B (purchased) | OPi 5 (planned) |
|------------|-------------------|-----------------|
| CPU | 4× A55 @ 1.8GHz | 4× A76 + 4× A55 |
| RAM | 8GB | 16GB |
| Storage | **256GB eMMC onboard** | MicroSD only |
| WiFi | **Built-in** | None (needed dongle) |
| USB 3.0 | **2 ports** | 1 port |
| eDP | **Native port** | None (HDMI only) |
| Power draw | ~3-5W | ~8W |
| Cost | $189 | $104 |
- NVMe speed improvement (2000 MB/s) not critical for cyberdeck use **Tradeoffs:**
- WiFi card slot (E-key) not needed - USB dongle acceptable - Less CPU performance and half the RAM, but 256GB onboard eMMC and built-in WiFi eliminate two separate purchases
- Price difference ($30-50) better spent on storage and peripherals - Native eDP port may replace the external controller board (~$24 savings, pending cable compatibility)
- Lower power draw means simpler battery system
- Higher upfront cost ($189 vs $104) but includes eMMC and WiFi that the OPi5 would have required buying separately
### Speed Reality Check ### Why Still the Right Pick
| Use Case | Base (PCIe 2.0) | Plus (PCIe 3.0) | 1. **256GB eMMC is huge** — No SD card for boot needed. OS + apps + projects fit onboard.
|----------|-----------------|-----------------| 2. **Built-in WiFi+BT** — No USB dongle, no antenna wiring, one less thing to buy.
| Boot time | ~10s | ~8s | 3. **2× USB 3.0 native** — More bandwidth for peripherals without hub contention.
| App load | Adequate | Faster | 4. **Native eDP port** — If cable/adapter works with the N156HGE-EAB panel, the external controller board isn't needed.
| File transfer | ~300 MB/s | ~1500 MB/s | 5. **Lower power** — 3-5W means the IP5389 battery system can be smaller/lighter.
| Development| Fine | Fine | 6. **M.2 M-key** — Can add an NVMe or SATA SSD for bulk storage if needed.
**For a cyberdeck used as portable workstation, PCIe 2.0 NVMe is adequate.**
--- ---
## eBay Bid Strategy ## Accessories Included With Purchase
| Auction | Bid Limit | Shipping | Total Max | The $189 purchase is the board with 256GB eMMC module pre-installed. Still needed:
|---------|-----------|----------|-----------|
| Orange Pi 5 16GB | $99 | $5 | $104 |
**Bid late, bid once.** Set max bid and let proxy handle it. | Item | Cost | Notes |
|------|------|-------|
--- | USB-C power supply (5V/3A) | ~$8-12 | For initial testing before battery integration |
| Heatsink | TBD | RK3566 at 1.8GHz needs passive or active cooling |
## Accessories Needed
### Required
| Item | Cost |
|------|------|
| Power supply (USB-C PD or 12V barrel) | $8-12 |
| MicroSD card (64GB Endurance) | $10-12 |
### Recommended
| Item | Cost |
|------|------|
| Heatsink + fan | $5-10 |
| Case (or custom build) | TBD |
--- ---
## Resources ## Resources
- [Orange Pi 5 Wiki](http://www.orangepi.org/html/hardWare/computerAndMicrocontrollers/details/Orange-Pi-5.html) - [Orange Pi 3B Official Page](http://www.orangepi.org/html/hardWare/computerAndMicrocontrollers/details/Orange-Pi-3B.html)
- [RK3588 datasheet](https://www.rock-chips.com/) - [Orange Pi 3B Wiki](http://www.orangepi.org/orangepiwiki/index.php/Orange_Pi_3B)
- [Armbian for Orange Pi 5](https://www.armbian.com/orange-pi-5/) - [CNX Software review](https://www.cnx-software.com/2023/08/05/orange-pi-3b-a-rockchip-rk3566-sbc-with-an-m-2-nvme-sata-ssd-socket-up-to-8gb-ram/)
- [Armbian for RK3566](https://www.armbian.com/)

206
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@ -1,128 +1,133 @@
# Storage Architecture # Storage Architecture
**Strategy:** SD card for boot/root, USB for data **Strategy:** 256GB onboard eMMC for boot/root/data. SD card and M.2 for expansion.
--- ---
## Design Principles ## Design Principles
1. **Simplicity:** SD card boots out of the box, no U-Boot complexity 1. **Simplicity:** eMMC boots out of the box, faster and more reliable than SD
2. **Reliability:** Endurance-rated SD cards last longer 2. **Speed:** eMMC ~300 MB/s read — comparable to a SATA SSD
3. **Flexibility:** USB storage can be swapped/upgraded easily 3. **Capacity:** 256GB onboard is plenty for OS + apps + projects + media
4. **Cost:** Minimal investment, repurpose existing drives 4. **Flexibility:** MicroSD and M.2 slots available for expansion
5. **Cost:** Included with SBC — no separate purchase needed
--- ---
## Layer 1: Boot/Root (MicroSD) ## Layer 1: Boot/Root (eMMC)
### Card Selection The Orange Pi 3B boots from its onboard 256GB eMMC by default. This is the primary storage:
| Attribute | Recommendation | ### eMMC Performance
|-----------|----------------|
| Capacity | 64GB minimum, 128 GB preferred |
| Type | Endurance-rated or Industrial |
| Brands | SanDisk Endurance, Samsung PRO Endurance |
**Why endurance cards:** | Attribute | Value |
|-----------|-------|
| Capacity | 256GB |
| Interface | eMMC 5.1 |
| Sequential read | ~300 MB/s |
| Sequential write | ~200 MB/s |
| Reliability | Significantly better than SD cards |
Consumer SD cards are rated for bursts of writes (camera use). OS usage is constant logging, updates, cache writes. Endurance cards are rated for: ### Partition Layout (Suggested)
- 5000+ hours of continuous recording ```
- 1000+ write cycles per sector /dev/mmcblk1 (eMMC, 256GB)
- 5-10× longer lifespan than consumer cards ├── /dev/mmcblk1p1 → /boot (fat32, ~500MB)
├── /dev/mmcblk1p2 → / (ext4, ~80GB)
├── /dev/mmcblk1p3 → /home (ext4, ~170GB)
└── (remaining for swap or data)
```
**Cost:**$10-15 for 64GB Or simpler:
```
/dev/mmcblk1p1 → /boot (fat32, ~500MB)
/dev/mmcblk1p2 → / (ext4, all remaining)
/home → subdirectory, not separate partition
```
256GB is large enough that separate partitions are optional. A single root partition with everything under it works fine.
### Boot Configuration ### Boot Configuration
Default Orange Pi 5 boots from SD: Default OPi3B boots from eMMC when populated. No configuration needed.
```
/dev/mmcblk0 (SD card)
├── /dev/mmcblk0p1 → /boot (fat32, ~200MB)
├── /dev/mmcblk0p2 → / (ext4, ~60GB)
└── /dev/mmcblk0p3 → /home (ext4, remaining)
```
Or single partition with separate mount points:
```
/dev/mmcblk0p2 → / (ext4, all space)
/home → bind mount or subdirectory
```
### Root-on-USB (Optional)
For faster I/O, copy root to USB SSD:
1. Boot from SD, insert USB SSD
2. `sudo rsync -ax / /mnt/usb/`
3. Edit `/boot/extlinux/extlinux.conf`:
```
append root=/dev/sda1
```
4. Boot from USB, SD only handles bootloader
**Tradeoff:** More complexity, faster app loading.
--- ---
## Layer 2: Data Storage (USB) ## Layer 2: Expansion (MicroSD + M.2)
### MicroSD
| Attribute | Value |
|-----------|-------|
| Slot | Standard push-push |
| Max capacity | Up to 512GB |
| Use | Backup, media library, test OS images |
No need for endurance-rated card — the SD slot is now secondary storage, not primary boot.
### M.2 M-key
| Interface | Speed | Notes |
|-----------|-------|-------|
| PCIe 2.0 x1 | ~300 MB/s | Slightly slower than eMMC |
| SATA III | ~550 MB/s | Faster than eMMC (if SATA SSD) |
Can add NVMe or SATA SSD for bulk storage if 256GB eMMC fills up. M.2 slot shares bandwidth with USB 3.0 — both use the same PCIe controller.
---
## Layer 3: Data Storage (USB)
Optional external storage for:
- Large media libraries
- Project archives
- System backups
### Options ### Options
| Option | Speed | Cost | Notes | | Option | Speed | Cost | Notes |
|--------|-------|------|-------| |--------|-------|------|-------|
| USB flash drive | 100-150 MB/s | $12-20 | Cheap, limited endurance | | USB 3.0 SATA enclosure | ~400 MB/s | $10-15 | Reuse 2.5" drives |
| USB 3.0 SATA enclosure | ~400 MB/s | $10-15 + drive | Reuse 2.5" drives | | USB 3.0 NVMe enclosure | ~400 MB/s | $8-15 | Compact |
| USB 3.0 NVMe enclosure | ~400 MB/s | $8-15 + drive | Compact, fast | | USB flash drive (fast) | 200-400 MB/s | $15-25 | Kingston, Samsung BAR |
| USD 3.0 flash drive (fast) | 200-400 MB/s | $20-40 | Kingston DataTraveler, Samsung BAR |
### Recommendation
**USB 3.0 SATA enclosure with salvaged 2.5" SSD.**
If you have a spare 2.5" SATA SSD from another build/upgrade:
- Enclosure cost: $10-15
- Speed: ~400 MB/s (SATAIII limit over USB 3.0)
- Capacity: whatever the drive is
If no spare drive:
- USB 3.0 flash drive (128GB): $15-25
- Or NVMe enclosure ($10) + budget NVMe drive ($20-30)
### Mount Strategy ### Mount Strategy
```bash ```bash
# /etc/fstab # /etc/fstab (optional USB storage)
UUID=<ssd-uuid>/mnt/data ext4 defaults,noatime 0 2 UUID=<ssd-uuid> /mnt/data ext4 defaults,noatime 0 2
/mnt/data/projects /home/jez/projects none bind 0 0 /mnt/data/projects /home/jez/projects none bind 0 0
/mnt/data/media /home/jez/media none bind 0 0 /mnt/data/media /home/jez/media none bind 0 0
``` ```
Mount on-demand or at boot, depending on use case.
--- ---
## Storage Layout ## Storage Layout
``` ```
┌─────────────────────────────────────┐ ┌─────────────────────────────────────┐
│ MicroSD Card (/dev/mmcblk0) │ │ eMMC (/dev/mmcblk1) │
│ SanDisk Endurance 64GB │ │ 256GB onboard │
│ ├── /boot (fat32, 200MB) │ │ ├── /boot (fat32, 500MB) │
│ ├── / (ext4, 25GB) │ │ ├── / (ext4, ~80GB) │
│ └── /home (ext4, 38GB) │ │ └── /home (ext4, ~175GB) │
│ Basic config, small files │ │ OS + apps + projects + media │
└─────────────────────────────────────┘ └─────────────────────────────────────┘
┌─────────────────────────────────────┐ ┌─────────────────────────────────────┐
│ USB SSD (/dev/sda) │ │ MicroSD (/dev/mmcblk0) │
│ SATA or NVMe in USB 3.0 enclosure │ │ Optional expansion │
│ ├── OS images / boot tests │
│ └── Media library / backups │
└─────────────────────────────────────┘
┌─────────────────────────────────────┐
│ USB SSD (/dev/sda) │
│ Optional — only if eMMC fills up │
│ ├── /mnt/data/projects │ │ ├── /mnt/data/projects │
│ ├── /mnt/data/media │ │ ├── /mnt/data/media │
│ └── /mnt/data/backup │ │ └── /mnt/data/backup │
│ Mounted on-demand │
└─────────────────────────────────────┘ └─────────────────────────────────────┘
``` ```
@ -130,18 +135,16 @@ Mount on-demand or at boot, depending on use case.
## Backup Strategy ## Backup Strategy
### SD Card Imaging ### eMMC Imaging
```bash ```bash
# Backup # Backup entire eMMC to USB drive
sudo dd if=/dev/mmcblk0 of=cyberdeck-sd-backup.img bs=4M status=progress sudo dd if=/dev/mmcblk1 of=/mnt/data/cyberdeck-emmc-backup.img bs=4M status=progress
# Restore # Restore
sudo dd if=cyberdeck-sd-backup.img of=/dev/mmcblk0 bs=4M status=progress sudo dd if=/mnt/data/cyberdeck-emmc-backup.img of=/dev/mmcblk1 bs=4M status=progress
``` ```
Or use **Pi Imager** / **BalenaEtcher** for GUI imaging.
### Data Backup ### Data Backup
- Timeshift for system snapshots - Timeshift for system snapshots
@ -152,31 +155,22 @@ Or use **Pi Imager** / **BalenaEtcher** for GUI imaging.
## Performance Expectations ## Performance Expectations
| Operation | SD Card | USB SSD | | Operation | eMMC | MicroSD | USB SSD |
|-----------|---------|---------| |-----------|------|---------|---------|
| Boot time | 8-12s | 5-8s (root-on-USB) | | Boot time | ~5-8s | ~10-15s | ~5-8s |
| App launch | 1-3s | 0.5-1s | | App launch | 0.5-1s | 1-3s | 0.5-1s |
| File read (1GB) | 40-90s | 3-5s | | File read (1GB) | ~3-4s | ~40-90s | ~3-5s |
| File write (1GB) | 60-120s | 3-5s | | Reliability | Excellent | Poor (wear) | Good |
| Random I/O | Slow | Fast |
**SD card is fine forOS and light use. USB SSD for anything I/O intensive.** eMMC is the clear winner for boot and everyday use. SD card and USB storage are optional extras.
--- ---
## Cost Summary ## Cost Summary
| Item | Low | High | | Item | Low | High | Status |
|------|-----|------| |------|-----|------|--------|
| MicroSD 64GB Endurance | $10 | $15 | | 256GB eMMC | $0 | $0 | **Included with SBC** |
| USB 3.0 SATA enclosure | $10 | $15 | | MicroSD (optional) | $0 | $15 | Only if needed |
| (Assume spare SSD) | $0 | $0 | | USB enclosure (optional) | $0 | $15 | Only if eMMC fills up |
| **Total** | **$20** | **$30** | | **Total** | **$0** | **$30** | |
If no spare SSD:
| Item | Low | High |
|------|-----|------|
| MicroSD 64GB Endurance | $10 | $15 |
| USB 3.0 flash drive 128GB | $15 | $25 |
| **Total** | **$25** | **$40** |

112
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@ -4,17 +4,17 @@
--- ---
## Native Ports (Orange Pi 5) ## Native Ports (Orange Pi 3B)
| Port | Type | Speed | Location | | Port | Type | Speed | Location |
|------|------|-------|----------| |------|------|-------|----------|
| USB 3.0 | Type-A | 5 Gbps | Board edge | | USB 3.0 ×2 | Type-A | 5 Gbps | Board edge |
| USB 2.0× Type-A | 480 Mbps | Board edge | | USB 2.0 ×2 | Type-A | 480 Mbps | Board edge |
| USB-C | Power + DisplayPort | 5 Gbps | Power input | | USB-C | Power only (5V input) | — | Power input |
**Total native USB:** 3 ports (1× USB 3.0, 2× USB 2.0) **Total native USB:** 4 ports (2× USB 3.0, 2× USB 2.0)
This is insufficient for a cyberdeck with multiple peripherals. Still may benefit from a hub depending on peripheral count, but the OPi3B's 2× USB 3.0 natively doubles the bandwidth available vs the OPi5.
--- ---
@ -75,44 +75,44 @@ This is insufficient for a cyberdeck with multiple peripherals.
``` ```
┌─────────────────┐ ┌─────────────────┐
│ Orange Pi 5 │ │ Orange Pi 3B │
│ │ │ │
│ USB 3.0 ───────┼─────┐ │ USB 3.0 ───────┼─────┐
│ USB 2.0 ───────┼──┐ │ │ USB 3.0 ───────┼──┐ │
│ USB 2.0 ───────┼──┼─┐│ │ USB 2.0 ───────┼──┼──┤
│ │ │ ││ │ USB 2.0 ───────┼──┼──┤
└─────────────────┘ │ ││ │ │ │ │
│ ││ └─────────────────┘ │ │
┌────────────────────┘ ││ │ │
│ ││ ┌────────────────────┘ │
▼ ││ │ │
┌─────────────────────┐ ││ ▼ │
│ Powered USB Hub │ ││ ┌─────────────────────┐ │
│ (7-port) │ ││ │ Powered USB Hub │ │
│ │ ││ │ (7-port) │ │
│ [Uplink] ◀─────────┘ ││ │ │ │
│ │ ││ │ [Uplink] ◀────────┘ │
│ [1] [2] [3] [4] │ ││ │ │ │
│ [5] [6] [7] │ ││ │ [1] [2] [3] [4] │ │
│ │ ││ │ [5] [6] [7] │ │
│ ┌─────────┐ │ ││ │ │ │
│ │ 5V DC │◄───────┼──────────┼┼── external power │ ┌─────────┐ │ │
│ └─────────┘ │ ││ │ │ 5V DC │◄───────┼───────────┼── external power
└─────────────────────┘ ││ │ └─────────┘ │ │
│ ││ └─────────────────────┘ │
▼ ││ │ │
┌─────────────────────┐ ││ ▼ │
│ Peripherals │ ││ ┌─────────────────────┐ │
│ • SSD enclosure │ ││ │ Peripherals │ │
│ • WiFi dongle │ ││ │ • SSD enclosure │ │
│ • Keyboard/mouse │ ││ │ • Keyboard │ │
│ • Webcam │ ││ │ • Mouse │ │
│ • Misc USB │ ││ │ • Misc USB │ │
└─────────────────────┘ ││ └─────────────────────┘ │
││ │
Native ports still available: ││ Native ports still available: │
• 2× USB 2.0 (keyboard, mouse) ◄─┘│ • 2× USB 3.0 (if not used for uplink) ◄┘
• 1× USB-C (power input) ◄──┘ • 2× USB 2.0 (keyboard, mouse) ◄─┘
``` ```
--- ---
@ -127,22 +127,22 @@ This is insufficient for a cyberdeck with multiple peripherals.
| Hub Port 2 | Hub | Data transfer | 5 Gbps | | Hub Port 2 | Hub | Data transfer | 5 Gbps |
| Hub Port 3 | Hub | Data transfer | 5 Gbps | | Hub Port 3 | Hub | Data transfer | 5 Gbps |
| Hub Port 4 | Hub | Data transfer | 5 Gbps | | Hub Port 4 | Hub | Data transfer | 5 Gbps |
| Hub Port 5 | Hub | WiFi dongle | 480 Mbps | | Hub Port 5 | Hub | Misc peripheral | 480 Mbps |
| Hub Port 6 | Hub | Bluetooth dongle | 480 Mbps | | Hub Port 6 | Hub | Misc peripheral | 480 Mbps |
| Hub Port 7 | Hub | Misc peripheral | 480 Mbps | | Hub Port 7 | Hub | Misc peripheral | 480 Mbps |
| Native USB 2.0 | OPi5 | Keyboard | 480 Mbps | | Native USB 3.0 | OPi3B | Keyboard | 5 Gbps |
| Native USB 2.0 | OPi5 | Mouse | 480 Mbps | | Native USB 3.0 | OPi3B | Mouse | 5 Gbps |
| Native USB 2.0 | OPi3B | BT dongle or spare | 480 Mbps |
| Native USB 2.0 | OPi3B | Spare | 480 Mbps |
**Total available:** 9 ports (7 from hub + 2 native USB 2.0) **Total available:** 11 ports (7 from hub + 4 native)
### Estimated Usage for Cyberdeck ### Estimated Usage for Cyberdeck
- 1× USB SSD (data storage) - 1× USB SSD (data storage)
- 1× WiFi dongle - 1× Keyboard (native USB 3.0 or 2.0)
- 1× Keyboard - 1× Mouse (native USB 3.0 or 2.0)
- 1× Mouse - 4× Expansion ports (hub)
- 1× Webcam (optional)
- 4× Expansion ports
--- ---
@ -201,11 +201,11 @@ Bare hub PCB designed for integration:
| Component | Draw | | Component | Draw |
|-----------|------| |-----------|------|
| Orange Pi 5 (16GB) | 5-8W | | Orange Pi 3B (8GB) | 3-5W |
| USB hub (self-powered) | 1-2W | | USB hub (self-powered) | 1-2W |
| USB SSD | 2-4W | | USB SSD | 2-4W |
| Peripherals | 1-2W | | Peripherals | 1-2W |
| **Total** | **9-16W** | | **Total** | **7-13W** |
For portable build: 10,000-20,000 mAh battery pack with PD output. For portable build: 10,000-20,000 mAh battery pack with PD output.
@ -241,9 +241,9 @@ If you want internal hub without USB cable:
## Recommended First Iteration ## Recommended First Iteration
1. Buy Sabrent 7-port powered hub ($20) 1. Buy Sabrent 7-port powered hub ($20)
2. Plug into Orange Pi 5 USB 3.0 port 2. Plug into Orange Pi 3B USB 3.0 port
3. Use external power adapter 3. Use external power adapter
4. Done — no custom wiring needed 4. Done — no custom wiring needed, and with 2x native USB 3.0, you have options for direct connections
**When you're ready for permanent build:** **When you're ready for permanent build:**
- Removehub from plastic case - Removehub from plastic case