optical-communication

Move files between devices with a screen and a camera — offline optical transfer of RVF cognitive containers and WASM artifacts over animated QR codes. Mobile-first, no network, no accounts, SHA-256 verified.

Short-reach Optical Communication: A Real-world Task for Neuromorphic Hardware

Agents delivered by light: an LLM compiles a tiny program off-chip and beams it by screen-light to a radio-less Arduino that runs it forever, offline. Live at beam-claw.com

Offline file transfer over animated QR codes — from a computer screen to a phone camera

Conceptual radiation-tolerant silicon photonic inter-satellite optical transceiver with redundant primary/backup paths, radiation monitoring, GDS layout generation using gdsfactory, and first-order optical link budget analysis.

Screen-to-camera optical modem: 33 KB/s file transfer via light, adaptive OFDM with per-carrier bit loading, zero-install browser receiver

MATLAB experiments and simulations for the ICT-3204 Optical Communications Laboratory at Islamic University, Bangladesh.

Procedural Python simulator for an 8-channel WDM-RoF link over C+L bands for 5G fronthaul — models BER, Q-factor, SNR, capacity, and throughput across fiber lengths and bit rates without needing OptiSystem/VPI.

⚡ True zero-network, air-gapped optical file transfer for Android & Web. Beam files, credentials, and data via high-speed animated QR photon streams with real-time computer vision and smart packet recovery.

One-way optical data link: an M5Stack Atom Matrix blinks, a webcam decodes. MicroPython sender + Python/OpenCV receiver, bonus Android port.

Closed-loop educational lab for low-contrast optical QR signaling and offline reconstruction

Air-gapped optical file transfer via screen-to-camera color modulation. Implements rateless Fountain codes (Luby Transform), real-time homography rectification, and zero-copy Web Worker CV in pure TypeScript.

Adaptive star-centroiding algorithm selection and stress-test benchmark under simulated spaceborne noise.

Simulation of secret key rate for satellite based, phase matched quantum key distribution under realistic noise and channel conditions.

Transfer files between air-gapped devices using optical QR photon bursts with SHA-256 lossless integrity.

Blinko Arduino library (Renesas RA4M1, Nano R4 / UNO R4): optical logging over the on-board LEDs, with hard-fault capture.

Send data screen-to-camera as a fountain of animated QR codes. An offline-first PWA optical channel — ECDH-encrypted, systematic-fountain-coded — that works between any two screens with no network and nothing to pair. Pluggable transmission approaches you can race for speed.

Read a microcontroller's logs with a phone camera, through its LEDs. Rolling-shutter optical link: Arduino library, Zephyr module, iOS and Android apps.