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The code uploaded to the Arduino is here:
/**
* PrintTest
* Arduino example by Mike Gionfriddo and Chris Ladden
*
* This example demonstrates sending analog
* values to the serial port. This sketch
* is simply broadcasting an analog value
* as a packet.
*
* Notes:
* 1.) Set the baud rate
* 2.) Read some analog value
* 3.) Print the value to the serial port
*/
void setup()
{
Serial.begin(115200);//setup a serial port with a baud of 115200
pinMode(18, OUTPUT);
pinMode(19, OUTPUT);
digitalWrite(18, HIGH);
digitalWrite(19, LOW);
}
void loop()
{
int value = analogRead(3); //read arduino analog pin 3 and save it as an int to value
delay(1000);//delay 1,000ms
char out[200];//create a 200 integer array
sprintf(out, "hi\nLight=%d\n", value);//prep the out file
Serial.print(out);//print the out array
}