The last of the new lines in 'setup' sends out the message that we see at the top of the serial monitor. This line is actually only necessary if you are using an Arduino Leonardo, because the Arduino Uno automatically resets the Arduino board when you open the Serial Monitor, whereas this does not happen with the Leonardo.

Otherwise, the message might be sent, but not displayed. The line beginning with 'while' ensures that there is something at the other end of the USB connection for the Arduino to talk to before it starts sending messages. We will discuss this later, but for now leave it at 9600. You can change this to a higher value, but you will also have to change the Arduio Serial monitor to the same value. The value 9600 is called the 'baud rate' of the connection. This starts serial communication, so that the Arduino can send out commands through the USB connection. To become familiar with (software) serial communication on the Arduino, I reviewed the documentation of the SoftwareSerial library.

Please refer to the 4D Systems website, namingly the Workshop 4 Product Page, for documentation regarding Workshop 4, and its environments.

The entire struct is then sent 1 char at a time. I figured I would need to use the SoftwareSerial library to read the incoming data and print that data on my screen using the hardware serial and the Serial Monitor in the Arduino IDE. This library provides high level functions for the Arduino, to ease communication with Picaso based modules when using the module configured for Serial. I have a struct which holds the array of data and 2 test characters.

The arduinos are wired rx->tx, tx->rx and ground to ground. This is also the best use of Serial communication in Arduino. So I'm trying to send an array from one arduino to another through serial communication, without using the software serial library. Firstly, we have the command 'Serial.begin(9600)'. the arduino target receiving it with Serial Receive (from Arduino Target library).

Arduino serial library