Dangerous Prototypes USB IR Toy

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Dangerous Prototypes USB IR Toy
Dangerous prototypes irtoy mugshot.png
Status supported
Source code openbench-logic-sniffer
Channels 1
Samplerate 10kHz
Samplerate (state)
Triggers automatically triggers upon IR signal
Min/max voltage N/A
Memory 1024 bytes
Compression none
Website dangerousprototypes.com

The Dangerous Prototypes USB IR Toy is a USB-based, 1-channel logic analyzer with a 10kHz sampling rate.

The hardware design is available under a Creative Commons (CC-BY-SA) license.

See Dangerous Prototypes USB IR Toy/Info for more details (such as lsusb -v output) about the device.


  • 8-bit microcontroller with integrated USB Full-Speed support: Microchip PIC18F2550-I/SO (datasheet)
  • 20MHz crystal
  • IR transmitter (LED): Vishay TSAL7400
  • IR receiver / demodulator: Vishay TSOP38238
  • IR frequency detector: Fairchild QSE159



The USB IR Toy uses the extended SUMP protocol, as used by the Openbench Logic Sniffer driver. It is thus supported in sigrok out of the box.