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A DIY, MITM Keyboard Sniffer Built Around an RP2040

A DIY, MITM Keyboard Sniffer Built Around an RP2040

by nlessard·Apr 28, 2026·4 points·0 comments
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AI Analysis

●●SolidWizardryNiche Gem

Dual-core RP2040 bit-banging USB host and device simultaneously is a neat hardware hack.

Strengths
  • •Uses PIO state machines to bit-bang USB host on GPIO pins while running device on native controller.
  • •Dual-core architecture cleanly separates host parsing and device emulation logic.
  • •Physical MITM approach bypasses OS-level antivirus detection entirely.
Weaknesses
  • •Requires physical access to target machine, limiting real-world attack surface significantly.
  • •No wireless exfiltration implemented yet; requires manual retrieval of the device.
Category
Hardware
Target Audience

Hardware hackers, security researchers, physical pentesters

Similar To

Bash Bunny · USB Rubber Ducky · KeyGrabber

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WizardryNiche Gem
redbasecap
104mo ago