This is a compact USB dongle enclosure designed specifically for the Ebyte E104-BT5040U module paired with a 0.91-inch I2C OLED display. The case provides a clean, tech-styled appearance while keeping the dongle slim enough for everyday laptop or desktop use.
Fork from https://www.printables.com/model/1045097-ebyte-nrf52840-dongle-case-with-buttons/files
Features
- Precision Fit
Tailored for the E104-BT5040U board and standard 0.91" OLED display. - Minimal & Slim Profile
A low-profile enclosure suitable for portable or permanent USB operation. - Clear Display Window
The OLED cutout includes chamfered edges for improved readability. - USB Clearance Optimized
Internal spacing ensures safe clearance around the USB-A solder joints. - Screwless Snap-Fit Assembly
The case closes securely using built-in clips—no screws or glue required. - Aesthetic Flexibility
Works well with PLA, PETG, or multi-color filaments for a more futuristic look.
Printing Recommendations
- Material: PLA or PETG
- Layer Height: 0.16–0.20 mm
- Wall Thickness: ≥ 1.2 mm
- Infill: 10–20%
- Supports: Minimal (for inner corners of the display window only)
- Orientation: Print flat with the display window facing upward
Assembly Guide
- Insert the 0.91" OLED from the front side of the cutout.
- Place the E104-BT5040U module into the enclosure.
- Snap the back panel into place—no screws required.
- Plug into USB and use immediately.
Ideal Use Cases
- ZMK dongle with real-time battery/BLE status
- Custom wireless HID or monitor devices
- Mini system telemetry display
- DIY electronics projects needing a compact USB display module
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