Air
Phantom mode · light is the wire
Year-4000 transport · ships today

Hylaq is the carrier.

No SIM. No WiFi. No Bluetooth. No LoRa. No internet.

Just light. Your phone's screen flashes bytes; another phone's camera reads them. The photons between the two devices are the entire wire.

No-radio verification
  • • Physical layer: visible light — literal photons between two screens
  • • Bandwidth: ~5 bps (single-bit luminance modulation, 200ms / symbol)
  • • Range: ~0.2 — 5 m line-of-sight
  • • Carrier in the byte path: none
  • • Air session machinery: same pathfinder, same Loadit settlement, same Hylaq handles — VLC is just a transport
A SIM-less, WiFi-less, Bluetooth-less, internet-less phone with a working screen and camera can send and receive Hylaq bytes.

How to demo

  1. 1. Phone A (sender): airplane mode, no SIM, no WiFi. Open this page, tap Send, type a short message, hit Broadcast.
  2. 2. Phone B (receiver): airplane mode, no SIM, no WiFi. Open this page, tap Receive, allow camera.
  3. 3. Hold phone B's camera ~30 cm from phone A's flashing screen, centered.
  4. 4. Watch the brightness graph oscillate. Decoded messages pop up as they lock-in.