This example shows how to use the Simulink Support Package for Arduino Hardware to run a Simulink model on an Arduino Uno board.
The Simulink Support Package for Arduino Hardware enables you to create and run Simulink models on an Arduino Uno board. The target includes a library of Simulink blocks for configuring and accessing Arduino sensors, actuators, and communication interfaces.
In this example, you will learn how to create and run a simple Simulink model on an Arduino Uno board. See other examples for the Arduino Uno board to learn how to implement more complex algorithms.
If you are new to Simulink, we recommend completing the Interactive Simulink Tutorial, reading the Getting Started section of the Simulink documentation, and running the Simulink Getting Started example.
To run this example, you will need the following hardware:
- Arduino Uno board
- USB cable
- 220 Ohm resistor
- Breadboard wires
- Small breadboard (recommended)
In this task, you will connect an LED to an Arduino output pin so you can see changes in the logical state of the pin.
1. Attach one end of the 220 Ohm resistor to output pin 9 on the Arduino Uno board. Use the recommended breadboard and the breadboard wires.
2. Attach the long leg (positive) of the LED to the resistor. Attach the short leg (negative) to the ground pin on the Arduino Uno board.
The Simulink Support Package for Arduino Hardware provides an easy way to create algorithms that use Arduino sensors and actuators by using blocks that can be added to your Simulink model. The blocks are used to configure the associated sensors and actuators, as well as to read and write data to them.
1. Enter simulink at the MATLAB prompt. This opens the Simulink Library Browser.
2. In the Simulink Library Browser, navigate to Simulink Support Package for Arduino Hardware.
3. Double-click the Digital Output block. Review the block mask, which contains a description of the block and parameters for configuring the associated Arduino digital output pin.
In this task, you will create a simple Simulink model that changes the state of the Arduino digital output pin.
1. In MATLAB, select HOME > New > Simulink Model.
2. Drag the Pulse Generator block from the Simulink Sources library to your model.
3. Double-click the Pulse Generator block. Set the Pulse type parameter to Sample based and set the Sample time parameter to 0.1 second.
4. Drag the Digital Output block to the model. Use the default block settings.
5. Connect the Pulse Generator block to the Digital Output block.
In this task, you will configure and run your model on the Arduino Uno board.
1. Connect the Arduino Uno board to your computer with a USB cable.
2. In your Simulink model, click the Deploy To Hardware button on the toolbar.
3. When the Configuration Parameters page opens up, set the Target hardware parameter to Arduino Uno. Do not change any other settings.
4. Click OK.
5. The model will now be deployed to the Arduino Uno hardware.
6. Look at the LED attached to pin 9. The LED should blink one time every second.
7. Save your model.
Experiment with other blocks in the Arduino block library. For example:
- Create and run a model that turns the LED on if a signal is applied to a digital input pin.
- Create and run a model that repeatedly brightens and dims an LED. Hint: Use the PWM block.
This example introduced the workflow for creating an algorithm from a Simulink model and then running it on Arduino Uno board. In this example, you learned that:
- The Simulink Support Package for Arduino Hardware provides blocks for configuring, reading from, and writing to Arduino sensors and actuators.
- You can use the Deploy To Hardware button to configure and run the model on an Arduino Uno board.