The values printed after the Serial.println() function will appear on the next line in the window. The function Serial.println() is also used in the same manner but to introduce a new line and carriage return after printing the value in the serial monitor. In short the Serial.print() function actually ‘prints’ the value which is given as a parameter to it on the serial monitor. For example if the variable ‘var’ has a value 10, then it can be displayed on the serial port as 10 using the following statement
This function formats the value to ASCII characters so that it can be displayed in the serial monitor window. The Serial.print() function is used in the code to send the value to the serial port that has to be monitored. This function is used in the code to initialize the serial port with the baud rate 9600 which is given as the argument of the function and also with 8 bits of data frame, one start bit, one stop bit and no parity bits using the statement given below This project also make use of the serial port accessing functions explained in the projects on how to receive and send serial data using arduino and how to do serial communication using arduino. It is assumed that the reader has gone through the project Getting started with Arduino and tried out the project on how to use the analog input and output of the arduino. 4:External USB to TTL converter board for programming Arduino and serial communication
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