Internet of LightTHE MESSAGE STUDIO / PLC × VLC
A message worth passing on.
Write a few words, upload a picture, or draw something. Preview the payload, then follow its journey from power line to light.
Join the live demonstration
Use the invitation passcode from the project team. Your draft stays on this device.
01 / Create your payload
PHONE → LIGHTUp to 30 printable ASCII characters. A transfer ID and checksum fit with your message inside the existing 51-byte optical record.
PNG, JPEG, or WebP · up to 8 MB. Converted on your device before sending.
No image selected.
High-contrast shapes work best. Colours are converted to black and white before transmission.
Prepare for the receiver
Aspect ratio is preserved on a white background. Black is 1; white is 0. The prepared image uses 1 bit per pixel.
Prepared payloads are tiny: at most 1,024 image bytes. Your original image is never uploaded. The relay forwards a bounded payload to the laptop agent.
Your phone → Cloudflare relay → outbound laptop agent → PLC gateway → LED → receiver. The laptop needs no public incoming connection.
Hardware parameters stay under the team’s control. Mains-connected interference sources are operated manually.