Find your people. No cell towers. No apps. No internet. Just LoRa mesh radio, GPS, and a ring of LEDs that points the way.
// PRICE TBD · PICKUP AT DEF CON · LIMITED RUN
Lock onto GPS satellites and broadcast your coordinates, username, and a status message over LoRa. Power it on and you're transmitting — no pairing, no setup.
Every Wayfinder in range automatically relays pings it hears to badges further out. The mesh extends your reach well beyond direct radio line-of-sight — zero configuration required.
A ring of LEDs acts as a live compass, rotating to point directly toward other badge holders. No map. No screen to stare at. Just look at the light and walk.
A dedicated SOS button broadcasts a repeating distress ping every 15 seconds with your GPS coordinates until you cancel it. Every Wayfinder in range gets notified and the LED ring pulses to alert them.
Every component decision is intentional. Tactile feel over production cost. Daylight readability over power savings. Field reliability over lab performance.
Previous versions used OLED — washed out in sunlight, prone to burn-in, rated for ~3000 hours. V3 uses a Sharp MIP display: always-on, daylight readable, and used in fitness wearables for a reason. Built to last.
Five Cherry MX-compatible mechanical switches paired with a detented rotary encoder. Tactile feel is prioritized over production cost — you know when you've pressed a button, even in a crowd.
The 915 MHz antenna mounts on a rotating carabiner clip — it stays vertical whether the badge is in your hand or hanging from your belt. Keeps the radiation pattern pointed at the ground where the other radios are.
V3 uses a buck converter charger for 2–3A charging current — down from 3 hours to ~1 hour for a full charge. A solid-state soft power switch automatically shuts the device down before the battery over-discharges.
A single WS2812B strip drives everything — the LED ring doubles as compass display and scroll indicator, individual LEDs light up to confirm button presses, and 6 LEDs form a functional flashlight off the main menu.
Upgraded from ESP32 to S3 for better peripheral support, native USB, and more headroom for the FreeRTOS task architecture. The firmware runs a fully task-based system with a custom windowing UI, mesh radio stack, and MessagePack RPC layer.
The badge is designed to be fully usable without a phone. But a companion app will make configuration, saved messages, and firmware updates far more convenient.
GPS is great outdoors. Inside a convention hall, less so. The plan is fixed anchor nodes using ESP-NOW and RSSI-based positioning to extend tracking indoors — where you actually need it at DEF CON.
Reserve yours online.
Pick it up at DEF CON. Reserve Now → PRICE TBD · LIMITED QUANTITY · DEF CON PICKUP ONLY