![]() If you re-visit the example sketch we included in this guide, you’ll notice that there are two crucial functions/methods.įirstly, it’s the Serial. For instance, you could use it to debug your Arduino-based DIY LED projects. ![]() You can apply the principles in the above examples to other Arduino projects. We typically set the Baud Rate using the Serial. If you don't set the correct Baud Rate, the Arduino won’t be able to read the characters. The Baud Rate needs to match the value in your sketch. The second drop-down menu allows you to set the Baud Rate. The first allows you to dictate where the line you’re sending to the Arduino should end, i.e., newline character or carriage return. In addition to the two checkboxes at the bottom, you should notice two drop-down menus. You can instruct the Serial Monitor to display the timestamp of each serial communication by ticking the Show timestamp box. Ticking the Autoscroll checkbox will instruct the Serial Monitor to automatically scroll to the bottom of the text area when it receives new communications. You can use it to debug messages and retrieve other helpful info. Essentially, it acts as the output console. Incidentally, the Serial Monitor uses this text area to display serial communications from the Arduino in the form of characters. The largest user interface control on the Arduino is the middle text area. Once you have typed in the characters, you can hit the send button. This text field allows you to type characters you would like to send to the Arduino microcontroller. The topmost user interface controls are the text field and the “send” button. The serial monitor consists of many different controls. Your Serial Monitor’s screen should look like the above image. Once you click on the Serial Monitor icon or option, it will launch in a separate pop-up window outside the main IDE windows. You can run the Serial Monitor from the icon or the Tools menu. Once you have typed or copied the above code into the Arduino IDE, verify it and click on the upload button to flash it on your Arduino Microcontroller.
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