Add-on dossier
A linkable lifecycle record for hardware expansions, app ecosystems, firmware upgrades, cases, radio parts, and post-event badge experiments.
The writeup says the badge's first screen scrolled Bluetooth device MAC addresses.
Badge context
Secondary event listing source used for September 29-30, 2017 Phoenix Convention Center context, not for badge technical details.
First-hand attendee source for the CactusCon 2017 paid badge package, Phoenix-area event context, WemOS-based Wi-Fi/Bluetooth scanner behavior, soldering troubleshooting, and image-rights boundary.
Board-vendor link named by the attendee writeup for the badge's WemOS-board foundation; used only to preserve the linked hardware reference, not to infer a specific module variant.
Source trail
First-hand attendee source for CactusCon 2017 paid badge package, soldering/de-soldering troubleshooting, WemOS-board identity, Wi-Fi SSID/signal display, Bluetooth MAC-address scrolling, and image-rights boundary.
Secondary event-context source for September 29-30, 2017 Phoenix Convention Center metadata; not used for badge technical claims.
Linked vendor reference named by the attendee writeup for the badge board foundation; not used to infer a specific WemOS module beyond the source text.