Upgrading Your Control System: Replacing your existing PLC with Arduino OPTA

Arduino OPTA PLC image for Official Integrator

In the world of industrial automation and control systems, Programmable Logic Controllers (PLCs) have been the go-to solution for decades. They offer reliability, stability, and robust performance. However, with advancements in technology, more cost-effective alternatives have emerged. One such alternative is replacing your current PLC with an Arduino OPTA (Open Programmable and Transformative Automation).

In this blog post, we will explore the benefits of making the switch from a traditional PLC to an Arduino OPTA, highlighting the advantages and potential challenges you may encounter during the transition. We’ll also note some of the challenges to consider. 

Understanding Arduino OPTA

Before diving into the benefits of replacing your PLC, let’s take a moment to understand what an Arduino OPTA is:

Open Source Platform: Arduino, known for its user-friendly and open-source hardware and software, has introduced the OPTA platform specifically tailored for industrial applications. This open-source nature encourages collaboration and customization, making it an attractive option for industrial automation projects.

Modularity: Arduino OPTA is designed with modularity in mind. You can easily expand and adapt your control system by adding or removing modules as needed. This flexibility allows for efficient scaling of your automation solution.

Ease of Programming: Arduino’s familiar and intuitive programming environment simplifies code development. Engineers and technicians can quickly adapt to it, reducing the learning curve compared to traditional PLC programming languages.

Cost-Effectiveness: One of the most significant advantages of Arduino OPTA is its affordability. Traditional PLCs can be expensive, especially for small and medium-sized businesses. Arduino OPTA offers a cost-effective alternative without compromising on performance.

Benefits of Upgrading Your PLC with Arduino OPTA

As previously mentioned, Arduino OPTA is budget-friendly. You can save a considerable amount of money by opting for this solution, which is essential for businesses looking to reduce their automation system costs. Let’s examine some additional benefits of the Arduino OPTA:

Flexibility and Scalability: Arduino OPTA’s modular design allows for easy scalability. You can start with a small setup and expand it as your requirements grow. This flexibility is crucial in adapting to changing production needs.

Community and Support: The Arduino community is vast and active. You can find a wealth of resources, tutorials, and libraries online, making it easier to troubleshoot issues and find solutions to specific challenges.

Rapid Prototyping: Arduino OPTA is excellent for rapid prototyping. You can quickly develop and test control logic and automation processes before implementing them on a larger scale. This reduces development time and minimizes costly errors.

Challenges to Consider

While Arduino OPTA offers numerous advantages, it’s important to be aware of potential challenges when replacing a PLC:

Reliability: Traditional PLCs are known for their reliability and robustness. Before fully transitioning, thoroughly test the Arduino OPTA in your specific industrial environment to ensure it meets your reliability requirements.

Integration: Adapting your existing system to work with Arduino OPTA may require some effort, especially if your current setup relies heavily on proprietary communication protocols or hardware. Contact Dojo Five if you need help integrating your legacy systems.

Longevity: Ensure that the Arduino OPTA platform is supported over the long term to avoid compatibility issues and potential obsolescence.


Replacing your current PLC with an Arduino OPTA can be a cost-effective and efficient choice for many industrial automation applications. The benefits of affordability, flexibility, and a supportive community make it an appealing option.

However, it’s crucial to carefully assess your specific automation needs, conduct thorough testing, and plan for a smooth transition to ensure that the Arduino OPTA meets your reliability and performance requirements. With proper planning and implementation, you can harness the power of Arduino OPTA to modernize your control system and adapt to the ever-evolving industrial landscape.

Need help? Dojo Five offers products and services aimed at revolutionizing the embedded firmware development industry. We have recently partnered with Arduino as a preferred software system integrator for the Arduino PRO commercial customer base to provide comprehensive solutions that seamlessly bridge hardware and software. Contact Dojo Five.