A professional input/output expansion for Raspberry Pi

Iono Pi is an extremely versatile I/O module that combines several digital and analog input lines, power relay outputs and support for standard interfaces, typical of a modern PLC, with the powerful computing core of the Raspberry Pi.

  • Power Supply
  • Relays
  • Analog Inputs
  • Digital Inputs
  • Open Collector Outputs
  • TTL I/Os – Wiegand – 1-Wire
  • Real Time Clock
  • Secure Element Chip

  • DIN-Rail Case
  • CE/FCC/IC Compliant

  • RoHS Compliant
Powered by Raspberry Pi

A Raspberry Pi based PLC

Iono Pi is an extremely versatile Input/Output module with a very powerful computing core based on a standard Raspberry Pi.

It combines several digital and analog input lines, support for standard interfaces like 1-Wire and Wiegand and power relay outputs, typical of a modern PLC, with the incredibly powerful quad-core processor of the Raspberry Pi 3 or 4.

Iono Pi adds other important features that are essential to use the Raspberry Pi for professional applications, like a robust power supply with wide voltage range (9-28V) capable of up to 4A output current at 5V, and a real time clock with lithium back-up battery.

While also available as an add-on board, the fully assembled version is packaged in a compact DIN standard case with omega-rail mounts, and certified to the relevant standards, ready for use in professional installation.

Iono Pi can be used for an incredible range of applications, from data acquisition and control, to home and building automation, as well as access control, hotel room control solutions, environmental monitoring and many many others. And software development is pure Raspberry Pi, with the constantly growing list of standard and proprietary software frameworks available on this platform.

Iono Pi can be employed both in industrial and residential environments, for professional applications where extreme reliability, ruggedness and compliance with technical and safety directives are required.

It is compliant with the low voltage and EMC CE directives, as well as the harmonised standards for electromagnetic compatibility, electrical safety, emission and the RoHS directive for hazardous substances. It is also compliant with the applicable FCC rules and IC standards.



Iono Pi custom

You can customize Iono Pi from branding to hardware features

Find out more



Connection diagram




Head to GitHub for our set of libraries, resources and examples for your Iono Pi. Bear in mind that you don’t need any specific library for Iono Pi, as is transparently compatible with anything running on Raspberry Pi; our libraries and examples will just provide you with some handy tools to speed up your development.


Iono Pi is compatible with the popular development environment for industrial automation CODESYS. Visit the CODESYS store to download the official library for your Iono Pi.