Velleman USB Experiment Interface Board (New Vers.)

The K8055N interface board has 5 digital input channels and 8 digital output channels. There are also 2 additional analog inputs and 2 analog outputs with 8-bit resolution. The number of inputs and outputs can be further increased by connecting up to a maximum of 4 cards to the PC's USB ports. All communication programs are stored in a Dynamic Link Library (DLL) K8055D.DLL. You can write custom Windows applications in Delphi, Visual Basic, C++ Builder, or any other 32-bit Windows application utility that supports DLL.

The hardware and software are downward compatible with our K8055/VM110.

Properties:

• Diagnostic/test software:
• Separate input/output test
• Delete all/fix all function
• Counter function for inputs 1 and 2 with adjustable debouncing (max. 20KHz, depends on the total I/O load)
• Analog output with slide switches
• Bar graph (analog input)

Minimum system requirements:

• 1 GHz processor or higher with 32-bit (x86) or 64-bit (x64)
• USB 1.1 or higher
• Windows XP or higher

Also available as a finished device: VM110N.

Technical data:

• 5 digital inputs (0 = GND, 1 = open) (test buttons on the board)
• 2 analog inputs with option for damping and amplification (internal test +5V provided)
• 8 digital output switches with open collector (max. 50V/100mA) (LED display on the board)
• 2 analog outputs:
• 0 to 5V, output resistance 1K5
• PWM 0 to 100% 'open collector' output max. 100mA / 40V (LED display on the board)
• Up to 4 cards can be connected to the PC
• General conversion time: 2ms per command
• Uses the Microsoft Human Interface Device (HID) driver, does not require an external driver
• Power supply via USB: about 70mA
• Dimensions: 145 x 89 x 20mm.