Very often, when you are developing an Arduino sketch, what you end up coding does something differently than what you expected it to do. The other big reason to send information to a computer display using the Serial.print() function is for developing and debugging Arduino sketches. If you open up the serial monitor window (Tools > Serial Monitor), you will see the values streaming in from the Arduino.

The first reason is being able to see information that you are generating with your Arduino.įor example, if you have a temperature sensor hooked up to your Arduino and you want to see the value that the temperature sensor is recording, then you can use the Serial.print() function to send the data to a computer monitor via the USB cable.

There are an endless number of reasons you may want to send information from the Arduino to a computer display, but two reasons really stand out to me: The Serial.print() function’s task is to send information from your Arduino to your computer, so you can see the value displayed on your computer’s monitor. You may know that a function is a programming tool – it performs a specific task for you. Why Would You Want to Use the Serial.print() Function? By submitting this form you agree to the privacy policy, and can opt-out anytime. You will receive email correspondence about Arduino programming, electronics, and special offers.

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