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mirror of https://github.com/arduino/Arduino.git synced 2024-12-04 15:24:12 +01:00
Arduino/build/shared/examples/04.Communication/SerialCallResponseASCII/SerialCallResponseASCII.ino
2013-10-21 09:58:40 +02:00

235 lines
8.8 KiB
C++

/*
Serial Call and Response in ASCII
Language: Wiring/Arduino
This program sends an ASCII A (byte of value 65) on startup
and repeats that until it gets some data in.
Then it waits for a byte in the serial port, and
sends three ASCII-encoded, comma-separated sensor values,
truncated by a linefeed and carriage return,
whenever it gets a byte in.
Thanks to Greg Shakar and Scott Fitzgerald for the improvements
The circuit:
* potentiometers attached to analog inputs 0 and 1
* pushbutton attached to digital I/O 2
Created 26 Sept. 2005
by Tom Igoe
modified 24 Apr 2012
by Tom Igoe and Scott Fitzgerald
This example code is in the public domain.
http://www.arduino.cc/en/Tutorial/SerialCallResponseASCII
*/
int firstSensor = 0; // first analog sensor
int secondSensor = 0; // second analog sensor
int thirdSensor = 0; // digital sensor
int inByte = 0; // incoming serial byte
void setup()
{
// start serial port at 9600 bps and wait for port to open:
Serial.begin(9600);
while (!Serial) {
; // wait for serial port to connect. Needed for Leonardo only
}
pinMode(2, INPUT); // digital sensor is on digital pin 2
establishContact(); // send a byte to establish contact until receiver responds
}
void loop()
{
// if we get a valid byte, read analog ins:
if (Serial.available() > 0) {
// get incoming byte:
inByte = Serial.read();
// read first analog input:
firstSensor = analogRead(A0);
// read second analog input:
secondSensor = analogRead(A1);
// read switch, map it to 0 or 255L
thirdSensor = map(digitalRead(2), 0, 1, 0, 255);
// send sensor values:
Serial.print(firstSensor);
Serial.print(",");
Serial.print(secondSensor);
Serial.print(",");
Serial.println(thirdSensor);
}
}
void establishContact() {
while (Serial.available() <= 0) {
Serial.println("0,0,0"); // send an initial string
delay(300);
}
}
/*
Processing code to run with this example:
// This example code is in the public domain.
import processing.serial.*; // import the Processing serial library
Serial myPort; // The serial port
float bgcolor; // Background color
float fgcolor; // Fill color
float xpos, ypos; // Starting position of the ball
void setup() {
size(640,480);
// List all the available serial ports
println(Serial.list());
// I know that the first port in the serial list on my mac
// is always my Arduino module, so I open Serial.list()[0].
// Change the 0 to the appropriate number of the serial port
// that your microcontroller is attached to.
myPort = new Serial(this, Serial.list()[0], 9600);
// read bytes into a buffer until you get a linefeed (ASCII 10):
myPort.bufferUntil('\n');
// draw with smooth edges:
smooth();
}
void draw() {
background(bgcolor);
fill(fgcolor);
// Draw the shape
ellipse(xpos, ypos, 20, 20);
}
// serialEvent method is run automatically by the Processing applet
// whenever the buffer reaches the byte value set in the bufferUntil()
// method in the setup():
void serialEvent(Serial myPort) {
// read the serial buffer:
String myString = myPort.readStringUntil('\n');
// if you got any bytes other than the linefeed:
myString = trim(myString);
// split the string at the commas
// and convert the sections into integers:
int sensors[] = int(split(myString, ','));
// print out the values you got:
for (int sensorNum = 0; sensorNum < sensors.length; sensorNum++) {
print("Sensor " + sensorNum + ": " + sensors[sensorNum] + "\t");
}
// add a linefeed after all the sensor values are printed:
println();
if (sensors.length > 1) {
xpos = map(sensors[0], 0,1023,0,width);
ypos = map(sensors[1], 0,1023,0,height);
fgcolor = sensors[2];
}
// send a byte to ask for more data:
myPort.write("A");
}
*/
/*
Max/MSP version 5 patch to run with this example:
----------begin_max5_patcher----------
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-----------end_max5_patcher-----------
*/