How do I code a function in Arduino?

How do I code a function in Arduino?

Arduino Coding – Writing Functions – 4 Examples

1. Define the function – enclose the statements of the function.
2. Call the function – use the function by using it’s name, adding any parameters if needed.
3. Use the result of the function – optionally, your code can do something with the result from the function.

What is return in Arduino?

The return keyword is handy to test a section of code without having to “comment out” large sections of possibly buggy code.

What are the functions of Arduino Uno?

Arduino is an open-source electronics platform based on easy-to-use hardware and software. Arduino boards are able to read inputs – light on a sensor, a finger on a button, or a Twitter message – and turn it into an output – activating a motor, turning on an LED, publishing something online.

Which are basic functions of Arduino technology?

Basic Functions of Arduino Technology

• Digital read pin reads the digital value of the given pin.
• Digital write pin is used to write the digital value of the given pin.
• Pin mode pin is used to set the pin to I/O mode.
• Analog read pin reads and returns the value.
• Analog write pin writes the value of the pin.
• Serial.

When do you call a function in Arduino?

We say that we “call a function” when we use a function to perform its specified task. This is explained in the second half of this part of the course. As seen in the previous part of this course, an Arduino sketch consists of two main functions called setup () and loop (). The loop () function is the main loop in the Arduino sketch.

Which is the main function in the Arduino sketch?

As seen in the previous part of this course, an Arduino sketch consists of two main functions called setup () and loop (). The loop () function is the main loop in the Arduino sketch. After statements that only need to be run once have finished being executed in the setup () function, program execution starts in the loop () function.

How to call simple multiply function in Arduino?

To “call” our simple multiply function, we pass it parameters of the datatype that it is expecting: Our function needs to be declared outside any other function, so “myMultiplyFunction ()” can go either above or below the “loop ()” function. The entire sketch would then look like this:

How does the setup function work on the Arduino?

As the above demonstration shows, the text in the setup () function is only displayed once when the serial monitor window is first opened and the Arduino is reset. After this, program execution enters the loop () function and repeatedly executes the statements in the loop from top to bottom and back to the top again in a never ending loop.