Summary

  • An open-source conference in Croatia has issued an electronic badge to attendees which can be used as a general purpose notification device, displaying a user’s name and for NFC-based games.
  • It has an alphanumeric LED display, USB and NFC reader components, and was created using an STM32L073 processor, an IS31FL3731 LED matrix driver chip and an ST25R3916 for NFC.
  • All the design files are available on GitLab, and the device is now capable of being used for whatever purpose attendees can program it for.
  • This highlights the potential for flexible, innovative use of electronic badges for far more applications than just conferences.

By Jenny List

Original Article