Parts List
Bill of Materials
Core Components
| Item |
Specification |
Source |
Est. Cost |
Status |
| SBC |
Orange Pi 3B 8GB + 256GB eMMC |
Amazon |
$189 |
Purchased |
| Display controller |
30-pin eDP to HDMI |
Amazon/eBay |
$24 |
Ordered — arriving in ~2 weeks |
Salvaged from K501U
| Item |
Status |
Notes |
| Display (Innolux N156HGE-EAB) |
Available |
Connects via eDP-to-HDMI controller board |
| Hinge mechanism |
Available |
Intact |
| WiFi antenna |
Available |
OPi3B has built-in WiFi — antenna may still be useful for signal |
| Webcam |
Available |
In bezel |
| Cooling fan |
Available |
4-pin PWM |
USB Expansion
| Item |
Specification |
Source |
Est. Cost |
Status |
| USB hub |
Powered 10-port USB 3.0 |
Amazon |
$20-25 |
To purchase |
| USB enclosure |
SATA 2.5" USB 3.0 |
Amazon |
$10-15 |
To purchase |
| (or) USB flash |
128GB USB 3.0 |
Amazon |
$15-25 |
Alternative |
Power
| Item |
Specification |
Source |
Est. Cost |
Status |
| IP5389 power board |
USB-C PD, 3S, bare PCB |
AliExpress |
$8-15 |
Board model TBD |
| 18650 cells (x6) |
3S2P, matched, 2500-3500mAh |
Shopping |
$12-30 |
To purchase |
| 5A blade fuse + holder |
Automotive |
Amazon |
$2 |
To purchase |
Audio
| Item |
Specification |
Source |
Est. Cost |
Status |
| PAM8403 amp module |
3W+3W, 5V, Class D |
Amazon |
$3-5 |
To purchase |
| 4Ω 3W speakers (x2) |
Small drivers, ~31×70mm |
Amazon |
$5-10 |
To purchase |
Networking
| Item |
Specification |
Source |
Est. Cost |
Status |
| WiFi |
Built-in OPi3B |
Included |
$0 |
Built-in |
| WiFi antenna |
K501U salvage or new |
— |
$0 |
May reuse K501U antenna |
Video & Case Integration
| Item |
Specification |
Source |
Est. Cost |
Status |
| HDMI A/B switch |
Mechanical, passive, bi-directional |
Amazon |
$8-12 |
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 |
| Item |
Purpose |
Source |
Est. Cost |
| Heatsink + fan |
Cooling |
AliExpress |
$5-10 |
| Panel-mount cables |
Case integration |
Amazon |
$10-20 |
| SD card reader |
Backup/imaging |
Amazon |
$8-12 |
Cost Summary
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 |
| Storage (USB enclosure) |
~$12 |
| USB hub (powered 10-port) |
~$22 |
| Power system (board+cells+fuse) |
~$32 |
| Audio (PAM8403 amp + speakers) |
~$10 |
| HDMI switch |
~$10 |
| Panel-mount cables + SD reader |
~$23 |
| Remaining |
~$110 |
Total Project
|
|
| Spent |
$213 |
| Remaining |
~$110 |
| Estimated total |
~$323 |
Ordered Items
| 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 |
Pending Purchases
- Powered USB hub (10-port USB 3.0)
- USB enclosure or flash drive
- IP5389 power board + 18650 cells
- 5A fuse + holder
- Mechanical HDMI A/B switch
- Panel-mount cables (USB-A, USB-C, HDMI, Ethernet, audio)
- Panel-mount SD card reader
- Heatsink for RK3566
- PAM8403 audio amp module
- 4Ω 3W speakers (x2)
Supplier Links (Research)
Add actual links when ordering:
- Orange Pi 3B: Amazon "Orange Pi 3B 8GB 256GB eMMC"
- Display controller: Amazon search "N156HGE-EAB controller board" or "30-pin eDP to HDMI"
- USB hub: Amazon "Sabrent 7-port USB 3.0 powered"
