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Step 1 — Detailed

Build Guide

Full documentation with photos and schematics on GitHub →
01

Download All Files

Grab everything you need from the GitHub repository: Gerber files for PCB fabrication, the full bill of materials, enclosure STL/STEP files, and pre-compiled firmware hex files.

SINGLE Schematic
SINGLE — Schematic
GitHub Repository →
02

Source the Components

Order all parts from the BOM. LCSC stocks the CH552G, pressure sensor, and passives at the lowest prices. The joystick module is widely available on AliExpress. Mouser and DigiKey work too.

03

Fabricate the PCB

Upload the Gerber files to a PCB manufacturer such as PCBWay or JLCPCB. Order the bare PCB — no assembly. Standard 2-layer, 1.6 mm FR4, HASL or ENIG finish.

04

Solder the Components

Assemble all SMD components onto the bare PCB. Work inside-to-outside — smallest and most central parts first, leaving the pressure sensor for last. The CH552G (SOP-16) and 16-pin USB-C connector are the most demanding pads — take your time and check continuity before powering on.

Assemble inside-to-outside: smallest, most central components first — leave the pressure sensor for last so it never blocks your iron. Flux paste and a chisel-tip iron at 320–350 °C work well for SOP-16 drag soldering. 63/37 or SAC305 solder both give good results. A hot-air station makes the CH552 easier. Check under magnification for bridges and cold joints before applying power.
05

Build the Enclosure

3D print the enclosure using the STL files. Resin gives the best surface finish; FDM works too with careful layer settings. Alternatively order the enclosure from a CNC or resin printing service.

06

Wire and Assemble

Solder wires to the joystick first — bridge the two GND legs together and the two VCC legs together at the joystick so only one GND and one VCC wire run to the PCB. Push the silicone tube through the sensor hole from outside, leaving extra length inside. Lead the PCB into the case USB-C end first, connect the tube to the sensor port, then pull the tube taut from outside while pressing the PCB until you hear a snap and it sits flush. Fit the joystick in its pocket and secure with super glue. Apply glue to the lid contact points, align the lid, and hold until set.

07

Flash Firmware

Use the flash tool below. A fresh board from the manufacturer enters bootloader automatically on its first plug-in — just click 'Connect CH552 Bootloader'. For subsequent flashes, click 'Reset to Bootloader' first to send the serial reset command. Emergency fallback only: unplug, short the two boot pads on the PCB with tweezers while plugging in, then release. Select your variant (Single / Dual / Plus) and flash.

Go to Flash Tool ↓
08

Configure

Plug in the finished device and use the configurator below to assign macros, adjust sensitivity, and calibrate joystick zones.

Go to Configurator ↓