You can send debug messages from Arduino to the computer and display them on your computer screen or send them to another device such as a Raspberry Pi or another Arduino. Serial communications are also a handy tool for debugging. The recipes here show how you can use that same communication link to send and receive any information between Arduino and your computer or another serial device. ![]() The upload process sends data from your computer to Arduino, and Arduino sends status messages back to the computer to confirm the transfer is working. This chapter explains how to send and receive information using this capability.Ĭhapter 1 described how to connect the Arduino USB serial port to your computer to upload sketches. ![]() Serial communications provide an easy and flexible way for your Arduino board to interact with your computer and other devices.
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