How to Use Actuators

Actuators are drive elements. They turn electrical signals that you transmit from your RevPi Core into a physical action. There are a wide variety of actuators. This means there is a wide range of applications and therefore opportunities for your project.

Below are a few examples of actuators:

  • Loudspeakers
  • Light emitting diodes (LEDs)
  • Pumps
  • Electric motors


In order to use actuators in your project, you need:

  • RevPi Core
  • RevPi DIO or DO
  • PiBridge
  • The desired actuators

Let’s go:

  • Connect RevPi Core and RevPi DIO/DO with one another – using the PiBridge.
  • Connect your actuator with a free output pin on your RevPi DIO/DO. More detailed information can be found in the data sheet of your actuator.
  • Plug RevPi Core and RevPi DIO/DO into a power supply.
Your device can be destroyed when chassis ground and earth are mixed up.
Before switching on the power, make sure all modules used are wired up properly.


If you’d like to connect up several RevPi modules with one another, you will also need a configuration file alongside the PiBridge which physically links the modules with each other. The configuration file has to inform your RevPi Core which module is to be found in which position and its basic settings.

Example: as a part of our project, we would like to connect up a fan to the RevPi DIO’s first outlet. It should initially run continuously.


  • You have installed a web browser on your PC (e.g. Chrome or Firefox).
  • RevPi Core is to be found in your network.

Let’s go:

  • Open your web browser.
  • Enter the IP address of your RevPi Core in the address box of your browser.

The log-in window opens.

  • Login with the user name “admin”.
  • Enter your password. You will find the sticker on the side of your RevPi Core.
  • Click on “Login”

You can now see the current status of your RevPi Core.

Apps tab screenshot
  • Click “Apps” tab.
  • Click the start button behind the entry “PiCtory” to start PiCtory.

PiCtory opens.

  • Right click on the RevPi Core that is to be found on the configuration board.
  • Select “Spalte rechts einfügen” in the context menu.

An empty column will be created to the right of the RevPi Core.

  • Enter the following:
  • Select RevPi DIO from the device catalogue.
  • Drag and drop it in the empty column on the configuration board.
  • Click on RevPi DIO

Below the configuration boards are 2 work areas. This is where you can configure your adapter.

  • Determine your basic settings for your adapter in “Device Data”
  • Click on Value Editor
  • Enter following values: name: fan, value: 1
  • Click on “File>Save”. This saves your file.
  • Click on “Tools>Reset Driver”. This activates the changes for the adapter

Your fan has been turned on.