SpoolSense Solo Reader - Extension for TFT display and keypad

This is the extension for the modular Case

for the NFC/RFID scanner SpoolSense.org for managing my spools and DryBoxes. This extension adds a TFT display and a keypad.

This enclosure is part of the SpoolSense ecosystem – an open-source project for tracking filament spools using NFC.

Full project, firmware, and general wiring guide: https://spoolsense.org

For build information for this scanner, please see here: https://github.com/SpoolSense/spoolsense_scanner/tree/main/usermods/plasticsnake

Features

• modular

• easy printing

• works on smaller printers

• nicer surface through printing upside down and bolting together ... selftapping 

• minimized support needed reducing time and wasted material

• colored design - be sure to check the right color for the heads 

• the Logos (RFID and SpoolSense are transluzent, so the LEDs use for showing the status

  • SpoolSense shows status AND filamentcolor wth the embedded RGB-LED

    • ESP32DevKitC

    • ESP32-S3-Zero

• screwing together with normal M3 Allen screws selftapping

• backpart is interchangeable for future changes (keypad, LCD, TFT, Buttons ...) so the front part can stay "as is" with the NFCReader and the ESP32

• powerconnection in the front 

• interchangeable mounting plate for different ESPs and NFC Boards

• there is an upcoming Extension for the use of an LCD and

• an external RGBLED

• the keypad is supported from the cover

Hardware

• M3 screws

• 90° angled Pinheaders 2,54" pitch 

• try to get display and keypad WITHOUT presoldered pins! 

• 12 Tasten Tastatur 4 X 3 Membranmatrix Tastaturmodul Array-Schalter Key Matrix Microcontroller Keyboard
  https://www.amazon.de/dp/B07GFDKJYZ?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_1

• LCD TFT Display Module, 1,54 Zoll SPI RGB TFT-LCD Displaymodul mit ST7789-Treiber, 240 x 240 Pixel, 3,3 V, IPS-LCD
  https://www.amazon.de/dp/B0G563JH1J?ref=ppx_yo2ov_dt_b_fed_asin_title

• WS2812B ECO RGB-Legierung Drähte 5050 mit PCB-Kühlkörper(10 mm * 3 mm) SMD Weiß LED-Chips (for future use)
  https://www.amazon.de/dp/B0DRJMGT9C?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_3
  

How to assemble

• print out the needed parts

  • change the setting of the colors

  • if you dont want colors, use your preferred instead

  • one color is transparent - so the LED of the ESP and the NFC board are brighter

• connect the case with the extension with 2 M3x20. If possible clamp the parts on a flat surface. The screws are screwed in an angle for easier access - but with the risk, that they shift a little bit on tightening

• solder the pinheaders pointing inwards!

• If something wiggles ... use hotglue ;-)

• I fixed the display and the keypad with the soldering iron melting the little pins

• RGBLed is ficed with hotglue

• cables also fixed with hotglue to take out the tension

• wire it correctliy and test it

• close the case ... 

• ... enjoy

Any Questions? Feel free to ask in the comments