tinySniffer

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https://www.tindie.com/products/tinydebian/tinysniffer-usb-sniffer

Product description

tinySniffer is to capture USB 1.x and 2.0 packets, with the feature of controlling it remotely.

• tinySniffer uses software solution and consists of 2 software parts: 1) pass through USB packets and 2) capture USB packets.
• Pass through USB packets is technically difficult.
• tinySniffer is built on the top of NanoPi Neo Air.
• Note: for various reasons tinySniffer must be online in order to capture USB packets.

Diagram

There are 2 modes

• Configure mode. Without USB peripheral connected and power on tinySniffer.
• Capture mode. With USB peripheral connected.