Velleman K8055

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This product has been discontinued and is not available for purchase. Please click on the button below for replacement and/or substitute products.

  • Jameco Part no.: 2130440
  • Manufacturer: Velleman
  • Manufacturer no.: K8055
  • HTS code: 8543909500
  • Web Exclusive

USB Experiment Interface Board Kit

The K8055 interface board kit has 5 digital input channels and 8 digital output channels. In addition, there are two analogue inputs and two analogue outputs with 8 bit resolution. The number of inputs/outputs can be further expanded by connecting more (up to a maximum of four) cards to the PC's USB connectors. All communication routines are contained in a Dynamic Link Library (DLL). You may write custom Windows (98SE, 2000, Me, XP) applications in Delphi, Visual Basic, C++ Builder or any other 32-bit Windows application development tool that supports calls to a DLL.


  • Separate output/input test
  • Clear all / set all function
  • Counter function on inputs 1 and 2 with adjustable debounce (max 1kHz depends on total I/O load)
  • Analog output set sliders
  • Analog input bar-graph indication

  • Minimum system requirements:
    • Pentium class CPU
    • USB1.0 or higher connection
    • Windowns 98SE or higher (WIN NT excluded)
    • CD ROM player and mouse


    • 5 digital inputs (0=gound, 1=open) (on board test buttons provided)
    • 2 analog inputs with attenuation and amplification option (internal test +5V provided)
    • 8 digital open collector output switches (max. 50V/100mA) (on board LED indication)
    • 2 analog outputs:
    • 0 to 5V, output resistance 1K5
    • PWM 0 to 100% open collector outputs max 100mA / 40V (on board LED indication)

    • General conversion time: 20ms per command
    • Power supply through USB: approx. 70mA
    • Dimensions: 5.7 x 3 x 0.8"

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