Over-engineered Display Stand for ESP32 e-Paper Weather Station
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Good looking but unneccesarily complicated display stand for Luke Marzen's Weather Station
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Updated at source:
Model information
- Source
- Printables
- Category
- Electronics
- License
- Creative Commons — Attribution — Share Alike
This is a compact enclosure to hold the panel and electronics for the ESP32 E-Paper Weather Display designed by Luke Marzen. Details of the electronics and software components can be found on his GitHub page
https://github.com/lmarzen/esp32-weather-epd.
I don't like adding a frame to the display and other free standing paper thin display use a chunky block base. I wanted something looks exceptionally thin to showcase the beauty of the e-paper display.
Features
Maintain the thinnest possible profile for the display
Direct access to on-board reset button (no extra button needed)
Direct access to USB-C port
Internal space is sufficient for the use of connectors, yet the enclosure remains compact to keep them hidden.
Use 906090 battery
Ample vent hole for air circulatio, providing fresh air to the BME280 sensor.
No heat set inserts
Use as little screws as possible
Bills of Materials
Qty | Description | Notes |
|---|---|---|
1 | FireBeetle 2 ESP32-E | Recommended in the project GitHub (Note: This design only works with Upward-facing header pin) |
1 | 7.5in e-paper Display | Supported panels can be found in the project GitHub |
1 | DESPI-C02 Adapter Board | Recommended in the project GitHub. |
1 | BME280 Sensor | Required only for displaying indoor temperature and humidity |
1 | 906090 Lipo Battery | Maximum available space up to 100 x 70 x 10.5 Batteries shorter than 70mm may not be held securely. |
4 | M2 x 6 screws | For securing the ESP32 board. (Note: Two screws are sufficient, but four mounting holes are provided. Lengths from 4mm to 6mm will work; 8mm may bottom out.) |
2 | M3 x 6 screws | For securing 2 halves of the case together (any length greater than 4mm will work) |
Printing
No automatically generated supports are needed.
STLs are already oriented for printing
Infill percentage is not critical
Long, thin walls are prone to warping; using a wide brim and a higher bed temperature is recommended
My Print settings
0.4mm nozzle
0.2mm layer height
0.5mm line width (except for 0.4mm external wall)
2 walls
3 layers top and bottom
10% rectilinear infill
Assembly
Pre-Assembly Note: Test your electronics before installing them in the case.
Insert the screen into its slot. (Optional: A small piece of double-sided tape can be added to prevent accidental lifting and pulling on ribbon cable, though the fit is quite stable.)
Put DESPI-C02 in place and connect the ribbon cable.
Put battery in place.
Install the reset button and the ESP32 board: First, loosely secure the ESP32 with an M2 screw in one corner.
Place button in the hole on the back casing.
Pivot the board in position to lock the button in place.
Install a second M2 screw in the opposite corner to secure the board.
Two screws are sufficient, but four holes are available if you prefer maximum stability, especially when plugging/unplugging the USB cable.
Caution: We are screwing directly into plastic. Be careful not to overtighten.
Put BME280 in its designated slot
Final Wiring Check: Last chance to connect all wires to the board if you use connecter. If soldering, this should have been done pre-assembly. This is how I route my wires.
Carefully tuck all the wires into the case. Slide the back casing into the front casing. Install two M3 screws. Again, be careful not to overtighten.
