In brief — 2026 — A Hackaday-featured maker turned a 2007 Samsung Q1 Ultra UMPC into a working Wii U Gamepad clone, using the old 7-inch screen as a second-display controller for the console. The build is a small classic of retro-repurpose hacks and a template for how to give an aging touchscreen device a productive second life.
What happened
Hackaday covered a build in which a 2007 Samsung UMPC — one of the last-generation "ultra-mobile PC" tablets that Microsoft and Intel briefly pushed as a future computing form factor — was rewired to act as a Wii U Gamepad. The Gamepad is Nintendo's second-screen touchscreen controller for the Wii U, and the console has always had a limited market for replacement or spare units.
The maker paired the UMPC's 7-inch touchscreen with a small microcontroller layer that translated inputs and mirrored the Wii U's video feed. The result is a working Gamepad clone built from a 2007 device that has otherwise been a paperweight for close to two decades.
Why this matters for makers
The Samsung UMPC-to-Gamepad build sits at a nice intersection of three things maker readers care about. First, it repurposes hardware that would otherwise be e-waste — every 2007-era UMPC still in the wild is a candidate for a second life. Second, it demonstrates the modern maker's toolkit — a Raspberry Pi 4 Model B 8GB or Pi Zero W is now the standard "add smarts to an old screen" primitive. Third, it makes the point that if you can source a working touchscreen and a small SBC, you can build the second-screen controller you actually want for whatever console you own — even ones the manufacturer never planned for.
The parts list template is portable. Anyone rebuilding a display project can lean on Raspberry Pi 4 Model B 8GB for the compute, Pi Zero W for tiny embedded roles, and — if the goal is a straight-up handheld replacement rather than a display hack — a Nintendo Switch Lite is the off-the-shelf shortcut.
The source
The full write-up lives on Hackaday. The build page covers the input mapping, the display timing, and the small circuit that translates touch input from the UMPC's original digitizer to a Wii U-compatible protocol. The techniques generalize: if you have a working touchscreen device with an accessible display connector and a working digitizer, you have the raw materials for a second-screen controller.
Parts-level fit for makers copying this build
If you want to try a variant of this project — for example, turning an older tablet into a second display for a home lab dashboard or an emulation station — the parts template looks like this:
| Role | Part | Why |
|---|---|---|
| Main compute | Raspberry Pi 4 Model B 8GB | HDMI out, GPIO for controls, 8GB RAM headroom |
| Tiny embedded | Raspberry Pi Zero W | For input translation only, low cost |
| Handheld reference | Nintendo Switch Lite | Off-the-shelf comparison if you want a handheld instead |
See the Raspberry Pi 4 product page for the 4B's HDMI and GPIO details, and the Pi Zero W page for the Zero's minimal footprint.
Common pitfalls in old-display repurpose builds
- Digitizer protocol variance. Older UMPCs often used proprietary digitizer protocols; not every touch panel talks USB HID out of the box.
- Backlight power. Older 7-inch panels usually need a separate CCFL or LED driver — plan for a small step-up regulator, not just USB power.
- Display timing. Legacy panels may only accept LVDS or a specific parallel-RGB signal that a Raspberry Pi does not natively emit; adapter boards are cheap but not always plug-and-play.
- Battery replacement. Any 2007-era device with a stock battery has a swollen or dead pack. Rebuild with an 18650 pack and a proper charging IC before you power on.
- Wii U pairing quirks. The Wii U Gamepad protocol was tightly console-paired; the Hackaday build worked around this with a translation layer, and any clone attempt will need the same.
When NOT to attempt this build
If your goal is "I want to play Wii U in bed" and you do not already have parts on hand, buy a used Wii U Gamepad. It will cost less than sourcing a UMPC, a Pi, and the timing electronics. If your goal is "I want to learn embedded display work and I already have the UMPC," this is a great template. The educational value is the whole point.
Bottom line
The 2007 Samsung UMPC as a Wii U Gamepad is a small classic. It reminds hobby makers that a working touchscreen and a $35 SBC will let you rebuild almost any second-screen device that lost official support. The Raspberry Pi 4 8GB is the natural compute for a copy of this project; a Pi Zero W covers the tiny-embedded role; a Nintendo Switch Lite is what you buy if you decide you would rather just play handheld games instead. Keep the UMPC out of the recycling bin and look at it for what it is: 15 years' worth of pixels waiting for a new controller board.
Related guides
- Self-Host Jellyfin on a Raspberry Pi 4 8GB in 2026
- CompactFlash vs SATA SSD via IDE Adapter for Retro PC Storage
Citations and sources
- Hackaday — original UMPC-to-Wii U Gamepad build coverage
- Raspberry Pi 4 Model B product page — SBC reference for maker builds
- Raspberry Pi Zero W product page — smallest form-factor reference
As of 2026, older UMPC devices continue to appear in retro-hardware channels — sourcing is the first hurdle for anyone copying the build.
