It’s a problem that faces every designer of an event badge: how to make something that won’t simply become a piece of e-waste once the last attendee has gone home. Various events have had badges with extra sensors, ones designed to be dev boards, and ones that try to do useful software tasks, but this year’s Electromagnetic Field in the UK has a different take. Its badge is designed to be used across multiple events, with the badge itself being a hub for event-specific add-ons.
This is a companion discussion topic for the original entry at https://hackaday.com/2024/03/23/the-electromagnetic-field-2024-badge-is-a-little-different/