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I/o shield for arduino

Velleman KA05: I/O Shield for Arduino® Kit

Velleman KA05

Velleman KA05 I/O Shield for Arduino® Kit (Electronic Project Kit - Soldering Required)

The Velleman KA05 I/O Shield for Arduino® kit is an input/output shield for your Arduino Uno™ projects. There are 6 analog inputs, 6 digital inputs and 6 relay outputs that make the KA05 an excellent choice for general purpose use. This DIY shield was designed to be stackable with other shields. It uses pins 8 to 13 as outputs, pin A0 to A5 as analog inputs and pins 2 to 7 as digital inputs. Sample sketches are available for download to get you started using the Velleman Arduino® shield.

Also available as mounted module VMA05.



  • Analog inputs: 0..+5Vdc
  • Digital inputs: dry contact or open collector
  • Relay contacts: NO/NC 24Vdc/1A max
  • Relays: 12Vdc
  • Dimensions: 68 x 53mm / 2.67" x 2.08"
  • Requires 1 Arduino® UNO™ - Not Included


Parts list
English assembly instructions through illustrations, pictures, etc.

Assembly instructions
Written multilingual manual explaining how to build the kit


Arduino sketch example
Example sketch to load into your Arduino UNO. Demonstrates how to control the KA05 input/output shield.

Info Sheets

Product information

Resistor colour code

Overview of Velleman modules that are equal to D.I.Y Kits
This sheet is useful when you want to know which modules you could find in the do-it-yourself range of Velleman Kits and minikits.

 Warning: this product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or other reproductive harm. For more information go to: www.P65Warnings.ca.gov/product