TRUSTED BY
PROFESSIONALS & MAKERS
From innovative startups to Fortune 500 powerhouses.
Over 3,500 companies worldwide trust CONTROLLINO for open, industry-grade PLC solutions.

CONTROLLINO is an industry-grade PLC based on open source software.
Fully compatible with Arduino.
We want to make sure that everybody has the opportunity to stand up against traditional, proprietary PLC companies. Forget about vendor lock-ins, fixed cycle times and other limitations. We will never limit your possibilites!
Ethernet
Use the ETH port to connect your CONTROLLINO to the internet, or let it communicate over protocols like Modbus TCP.
USB & Serial Port
Flash software and monitor your CONTROLLINO over USB.
12V & 24V Power
Compatible with both 12V and 24V power sources, with automatic switching.
Digital I/O
Control things with digital inputs and outputs ranging from 5 to 24V.
Analog I/O
Control things with analog inputs and outputs.
Relays
With up to 16A / 250V
Pin Header
With I/O as you know it from traditional Arduino
Revolutionize industrial automation with CONTROLLINO. With our Arduino-compatible PLC you can finally break free from proprietary systems and get rid of vendor lock-ins.
With up to 61 I/O channels and relays, CONTROLLINO accommodates an almost infinite range of automation and control applications.
Harness the capability of dozens of inputs and outputs, ranging from 5V to 250V at up to 16A, allowing you to connect to a wide variety of sensors and control your assets with maximum flexibility.
Experience 100% Arduino compatibility, tapping into the simplicity and flexibility of the Arduino ecosystem.
This drastically speeds up your project’s time-to-market, without compromising on reliability and industry-ready performance.
CONTROLLINO is adhering to the highest industry and electronic safety standards like CE, UL, and IEC 61131 certified.
Fully trust in the reliability of our PLC in any production environment.
The MICRO is our first product that uses a 32-bit Microcontroller based on the highly popular and Arduino-compatible RP2040 from Raspberry Pi. This is our smallest CONTROLLINO to date, but yet amazingly powerful for its size.
From innovative startups to Fortune 500 powerhouses.
Over 3,500 companies worldwide trust CONTROLLINO for open, industry-grade PLC solutions.
AI STUDIO makes AI training, deployment and inferencing as easy as it gets. Upload your sensor data or collect real-time data over MQTT. Automatically train AI models optimized for inference on a microcontroller like CONTROLLINO. Deploy the model directly to the device and use it for tasks like predictive maintenance, anomaly detection and more.
World’s first professional & fully open PLC.
Serving customers all over the world since 2015.
A CONTROLLINO PLC is the ideal solution for all stages of your industrial automation pipeline, offering unparalleled versatility and robustness from the initial prototype phase to full-scale production.
These are the faces behind the company.
Welcome to the world where innovation in automation meets incredible enthusiasm. Our small but very capable team of engineers, developers, and visionaries spread their expertise and love for the product day by day, crafting realiable, industry-ready and open source solutions.
We’re not just a company: we’re a family united by a relentless pursuit of excellence, driven to engineer pioneering products that elevate your IoT and industrial creations to the next level. Here’s some images from our company’s journey so far and the faces behind it. Tip: click on the images to see them in full scale.
A CONTROLLINO PLC is the ideal solution for all stages of your industrial automation pipeline, offering unparalleled versatility and robustness from the initial prototype phase to full-scale production.
Our groundbreaking PLC gives you the power to push the boundaries of what is possible. With a vast array of inputs and outputs, you can take your projects to new heights and complexity.
We offer you a PLC with open-source software that is as dynamic and adaptable as you are. With its extended range of I/O ports, different connection options like Ethernet and RS485, you’re free to build and automate as you please, without ever feeling limited. Welcome to a world where you set the rules.
Featuring up to
input channels
from 5V to 24V
Supporting up to
output channels
from 5V to 24V
Built for industrial automation
CONTROLLINO is packed with lots of different interfacing options, like Serial (UART), RS485, I²C, SPI, USB and Ethernet (TCP/IP, ModbusTCP and everything else you can throw on an Ethernet port). This makes it highly versatile for any use case.
Our groundbreaking PLC gives you the power to push the boundaries of what is possible. With a vast array of inputs and outputs, you can take your projects to new heights and complexity. Get yours now!
Command up to
Relays supporting up to
16A and 250V
Reach out over
meters with RS485 interface
Our industry-grade PLCs, rooted in open-source technology, provide professionals with a level of adaptability and reliability unmatched in the market. With our Arduino-compatible devices, you can effortlessly streamline your operations, reduce cycle times, and enhance productivity. Whether you’re a small business or a Fortune 500 company, CONTROLLINO equips you with the hardware you need to navigate the ever-evolving landscape of industrial automation.
for industrial applications
Don’t wait to redefine what’s possible in your production line or educational project. The future of industrial automation is here and it’s open source, robust, and ready for you. Experience the CONTROLLINO revolution today – get yours now.