How To Control A Linear Actuator with Arduino

There are many reasons that you might find yourself wanting to control a linear actuator with Arduino. With Arduino microcontrollers, you can manage several actuators, integrate various sensors and modules, and even connect to home automation systems. Learning to use an Arduino takes some dedicated effort, but it opens up a vast world of functionality options for your projects. Whether you're handling a straightforward or complex task, Arduino provides the tools needed to create customizable automation suited to your specific criteria.


What Is Arduino?

Arduino is an open-source platform featuring a microcontroller board. It is designed for building digital devices and interactive systems capable of controlling and sensing physical components. It’s user-friendly with a straightforward programming environment, and there is a broad range of compatible sensors, motors, and peripherals. Arduino boards are widely used by hobbyists, educators, and professionals for experimentation and prototyping. Programs are called 'sketches', and are written using the Arduino IDE, which supports C and C++ programming languages. It can sound a little intimidating, but it's really not very hard to get started.


Why Opt for Linear Actuators?

We offer both linear actuators and linear servos in our store. While we generally recommend linear servos for Arduino projects, sometimes an actuator is a better choice. For example, if you want to device that you can easily use for a non-Arduino project later down the road, an actuator might be a better choice. Additionally, many makers have a few actuators in their parts arsenal already, and want to use what they already own rather than purchasing new parts. In the end, either device will get the job done, but the components, wiring and code will be a little different for controlling a linear actuator with an Arduino.


Related article: How to Control a Linear Servo with an Arduino

Controlling a Linear Actuator with Arduino

There are many different options for controlling a linear actuator with an Arduino. What components you use will depend on your specific needs as well as what inputs your using and other factors. Our example here is just one way of accomplishing this. We have used a simple push button setup that can be easily replicated.

Equipment Needed

To get started, you’ll need an Arduino board. Many options are available, and all are capable of driving a linear actuator. However, different boards come with distinct strengths, so it's worth researching to ensure you choose the right one for your needs. We’ve had good experiences using the Arduino Uno. Additional required components for this setup include:

  • S-Series linear actuator
  • Breadboard
  • Power supply that matches your actuator's voltage
  • Buttons or other switching mechanism
  • Motor driver
  • Assorted jumper wires


Code

We have included the code example that we used in this specific setup. You can use this as a starting point for controlling your own actuator or start with a new sketch.

Programming Your Arduino

After gathering your components, the next step is to program the Arduino to control the linear actuator. Start by connecting your Arduino to your computer and opening the Arduino IDE. You’ll need to define the motor driver and button pins in your code. You can either use our example code above or write your own program. Note that some motor driver chips may have different wiring requirements; we're using a Toshiba TB6643KQ for this example, which has 2 inputs for controlling the actuator's direction.  Once the code is complete, upload it to the Arduino and set up your circuit for testing.

This program will allow the actuator to be commanded in and out using the buttons. If you want more flexibility with actuator positioning, you could also wire in another switch/button to command it to stop mid-stroke.  If you encounter any difficulties, plenty of online resources, like forums and tutorials, can assist. Getting the code correct will ensure smooth progress as you move on to testing.


Testing

After programming, it’s essential to test your setup. Power on the Arduino and linear actuator, and observe how the actuator moves in response to your inputs. The movement should be smooth and responsive, aligning with the input without noticeable delay or irregularities. If there are issues like erratic movement or no response, double-check your connections and review your code.


Testing helps ensure everything functions properly before finalizing your project. Also, confirm that your power supply matches the rated voltage for your linear actuator. Adjust the code or circuit as needed to achieve the desired functionality. Once the actuator runs smoothly, your project is ready for use, whether it's part of a larger system or a standalone solution.



Conclusion

Arduino provides an extensive range of exciting possibilities for automation. It's clear why the platform continues to grow in popularity among hobbyists, entrepreneurs, and professionals alike. We hope this article has clarified how to operate a linear actuator using Arduino. If you need assistance in choosing the best actuator for your project, feel free to reach out to our sales team. We're happy to help you find the perfect solution for your linear motion needs.

Using Linear Actuators with Arduino FAQ

Can you help me with Arduino code?

No, we do not provide direct code support. However, we can help with product-related questions. For coding assistance, we recommend checking out the Arduino forums.

Can I use Arduino with your LAC board?

Yes, our LAC board is compatible with P-Series actuators. The RC input on the LAC board works similarly to using an R-Series actuator, but offers more precise control over limits, speed, and sensitivity directly on the board.

Can I power my actuator directly from an Arduino board?

Possibly, but it’s not recommended. You need to compare the rated output of the servo pins on your Arduino board with the power draw of your linear actuator. Most boards can drive a linear actuator with no load, but under load, it might cause damage.

Can I use your EXT-R board with an Arduino?

Yes, the EXT-R board makes P-Series actuators function similarly to R-Series actuators, and you’ll control them the same way.

Actuonix - More Micro Actuator Models Than Anybody

When you're searching for linear actuators to use with Arduino, we've got you covered. With over 250 models in our catalog, we offer more variety than anyone. We’re committed to providing excellent customer service and fast shipping, ensuring your project stays on track.

As Actuonix continues to innovate in the electric actuator space, we're proud to contribute to the machinery that powers the modern world through our reliable and simple actuator solutions.