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 |
|
Banggood power board |
QC3.0 3S-5S 65W-100W PD, bare PCB |
Banggood (ID 1990904) |
$14.39 |
|
18650 cells (x6) |
3S2P, matched |
Banggood |
$48.04 |
|
Cell holders (x8) |
Single 18650 slot |
Banggood |
$7.99 |
|
5A blade fuse + holder |
Automotive |
— |
$2 |
Audio
| Item |
Specification |
Source |
Est. Cost |
Status |
|
PAM8403 amp module |
3W+3W, 5V, Class D, single turn knob |
Banggood |
$3.59 |
|
4Ω 3W speakers (x2) |
Small drivers, ~31×70mm |
— |
$5-10 |
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 |
|
Display controller |
$24 |
|
Power board (Banggood 3S-65W) |
$14.39 |
|
18650 cells (x6) + holders (x8) |
$56.03 |
|
PAM8403 audio amp |
$3.59 |
|
OPi 3B metal case + fan |
$16.78 |
|
Spent so far |
$303.79 |
Remaining to Purchase
| Category |
Cost |
|
Storage (USB enclosure) |
|
USB hub (powered 10-port) |
|
Power (fuse + misc) |
|
Speakers |
|
HDMI switch |
|
Panel-mount cables + SD reader |
|
Remaining |
Total Project
|
|
|
Spent |
|
Remaining |
|
Estimated total |
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 |
|
Banggood power board + cells + holders + amp + case + fan |
Jun 3 |
TBD |
Banggood |
Pending Purchases
- Powered USB hub (10-port USB 3.0)
- USB enclosure or flash drive
- 5A fuse + holder
- 4Ω 3W speakers (x2)
- Mechanical HDMI A/B switch
- Panel-mount cables (USB-A, USB-C, HDMI, Ethernet, audio)
- Panel-mount SD card reader
- Heatsink for RK3566
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"
