Many portable computers are sealed boxes, which is exactly what makes them irritating for anybody who wants to try out electronics. You can run code on a laptop computer, however try electrical wiring a temperature sensing unit or an infrared transmitter straight to it, and you’ll understand that customer hardware was never designed for that sort of access. A maker who passes PickentCode got tired of that space and constructed something to close it.
The CyberPlug 3.0 is the third iteration of a personal cyberdeck job, the earlier two having functionality issues that sent out PickentCode back to Blender to redesign. The last develop packs a Raspberry Pi 4 Model B, a 4-inch IPS touchscreen, a Rii K06 mini keyboard with a built-in touchpad, and a 5,000 mAh USB-C power bank into a 3D-printed hinged body that folds flat for handheld usage or props open at a desk-friendly angle.
Designer: PickentCode
< img src =" https://www.yankodesign.com/images/design_news/2026/03/this-foldable-diy-cyberdeck-has-breadboards-built-in-and-runs-doom/pickentcode-foldable-handheld-cyberdeck-04.jpg "alt =""width ="1280"height="960"/ >< img src= "https://www.yankodesign.com/images/design_news/2026/03/this-foldable-diy-cyberdeck-has-breadboards-built-in-and-runs-doom/pickentcode-foldable-handheld-cyberdeck-02.jpg"alt =""width ="1280"height= "960"/ > What separates this from a basic Raspberry Pi construct is the set of breadboards soldered straight to the GPIO pins, seated inside the case, and available through a detachable back panel. Linking a sensing unit no longer means searching for a different breadboard
and a tangle of jumper wires. PickentCode plugged in a temperature and humidity sensor and had it reading live data within minutes, then developed an infrared setup that records push-button control signals and replays them as single-button macros. < img src ="// www.w3.org/2000/svg%22%20viewBox=%220%200%201280%20960%22%3E%3C/svg%3E"data-src
=”https://www.yankodesign.com/images/design_news/2026/03/this-foldable-diy-cyberdeck-has-breadboards-built-in-and-runs-doom/pickentcode-foldable-handheld-cyberdeck-06.jpg”alt=””width =”1280 “height=”960 “/ > The two kind elements each have a distinct locking system rather than simply flopping into position. In portable mode, twin magnets pull the 2 halves together. In desktop mode, a metal ring on the back grabs the MagSafe-style power bank magnetically, holding the whole thing at a steady upright angle. Both the keyboard and the power bank slide out independently, and the deck keeps dealing with a desk without either of them.
< img src= "https://www.yankodesign.com/images/design_news/2026/03/this-foldable-diy-cyberdeck-has-breadboards-built-in-and-runs-doom/pickentcode-foldable-handheld-cyberdeck-08.jpg" alt=""width =" 1280 "height=" 960 "/ > Extensions are where the project gets more interesting. PickentCode added a PWM-controlled external fan that checks out CPU temperature and adjusts speed immediately, and a little speaker module that unlocked to YouTube and older games. Doom, Half-Life, and GTA: Vice City all ran on it, better with an external setup in desktop mode, though convenient in portable after some button remapping.
< img src="https://www.yankodesign.com/images/design_news/2026/03/this-foldable-diy-cyberdeck-has-breadboards-built-in-and-runs-doom/pickentcode-foldable-handheld-cyberdeck-09.jpg" alt ="" width="1280" height="960"/ > < img src ="// www.w3.org/2000/svg%22%20viewBox=%220%200%201280%20960%22%3E%3C/svg%3E" data-src="https://www.yankodesign.com/images/design_news/2026/03/this-foldable-diy-cyberdeck-has-breadboards-built-in-and-runs-doom/pickentcode-foldable-handheld-cyberdeck-09.jpg" alt ="" width="1280" height="960"/ > < img src="https://www.yankodesign.com/images/design_news/2026/03/this-foldable-diy-cyberdeck-has-breadboards-built-in-and-runs-doom/pickentcode-foldable-handheld-cyberdeck-10.jpg" alt ="" width="1280" height="960"/ > < img src ="// www.w3.org/2000/svg%22%20viewBox=%220%200%201280%20960%22%3E%3C/svg%3E" data-src="https://www.yankodesign.com/images/design_news/2026/03/this-foldable-diy-cyberdeck-has-breadboards-built-in-and-runs-doom/pickentcode-foldable-handheld-cyberdeck-10.jpg" alt ="" width="1280" height="960"/ > PickentCode frames this clearly as a testbed for discovering electronics, not a replacement for a phone or a real computer. The 3D files are complimentary on Printables, so the main expense is filament, time, and the components. For anyone who has actually ever stared at a sealed laptop wishing they could just plug something into it, that framing is most likely the most relatable aspect of it. < img src="https://www.yankodesign.com/images/design_news/2026/03/this-foldable-diy-cyberdeck-has-breadboards-built-in-and-runs-doom/pickentcode-foldable-handheld-cyberdeck-11.jpg" alt ="" width="1280" height="960"/ > < img src ="// www.w3.org/2000/svg%22%20viewBox=%220%200%201280%20960%22%3E%3C/svg%3E" data-src="https://www.yankodesign.com/images/design_news/2026/03/this-foldable-diy-cyberdeck-has-breadboards-built-in-and-runs-doom/pickentcode-foldable-handheld-cyberdeck-11.jpg" alt ="" width="1280" height="960"/ >