Personal Wireless Grid - USB Adapter Blueprint Pack
Publicly online since 2010 · U.S. patent applications since 2012 · inventions offered since 2014. The work of Christopher Gabriel Brown, independently documented.
Personal Wireless Grid makes wired peripherals cordless. Fit a small adapter to any wired device — a USB drive or printer, a bench instrument, an audio source — and it joins your Wi-Fi. Your PC still sees it exactly as if it were plugged in locally; the cable is simply gone. Put your gear where you need it, not where its cord reaches.
Take any wired USB peripheral and make it cordless — without your computer ever knowing the difference.
In plain English
Build the adapter from this blueprint, plug it onto any wired USB device (a drive, a printer, a scanner, a lab instrument, even a USB dongle for another product), and that device’s data starts flowing to your personal PC over Wi-Fi instead of through a cable.
On your PC, the device shows up as a normal local port that your existing apps can read and write. The cable is gone; the peripheral is wherever you want it.
In technical terms
An ESP32-S3-based USB host that enumerates a wired USB device on its downstream port and proxies its bulk-in and bulk-out transfers, base64-framed, over the PWG protocol to the personal-machine host. Hardware is the same family as the UniPhi USB Dongle; only the firmware mode differs (peripheral-side proxy rather than HID-injector).
- ESP32-S3-MINI-1 with native USB host + Wi-Fi.
- USBLC6-2 in-line ESD protection.
- 24AA02E48 ID EEPROM (EUI-48 for grid-side identification).
- Same PCB outline and BOM family as the UniPhi USB Dongle — buyers of both blueprints share fab and assembly.
What is included (deliverables)
- KiCad 10 schematic with manufacturer footprints assigned.
- PCB layout specification (outline, stackup, 90 Ω USB diff-pair, ESP32 antenna keep-out, DRC).
- ESP32-S3 PWG-mode firmware source (USB host + PWG client).
- Bill of materials with part numbers.
Design target
Under 100 ms one-way bulk transfer on a local Wi-Fi network. Performance values are design targets, not guarantees.
How to order
Email- and postal-order only — no phone, no brokers. USA-based buyers, USD only. Delivery is by encrypted email link upon payment confirmation.
- Email: christopher@cri-one.com · crioneaka@outlook.com
- Postal: Christopher Gabriel Brown · 1341 Wellington Cove · Lawrenceville, GA 30043-5255 · United States
Personal Wireless Grid is patent pending (U.S. Utility Application No. 19/717,706, filed 06/24/2026, inventor: Christopher Gabriel Brown; the same patent application also covers the related UniPhi product line). Purchase grants use of the software and design files included in this listing for the buyer’s own build — it does not transfer, assign, or license the underlying patent-pending invention. The patent and all derived rights are retained by the inventor.
