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Input Output
Demonstrates how to create a sketch that sends and receives all standard
spacebrew data types, and a custom data type. Every time data is
received it is output to the Serial monitor.
Make sure that your Yún is connected to the internet for this example
to function properly.
The circuit:
- No circuit required
created 2013
by Julio Terra
This example code is in the public domain.
More information about Spacebrew is available at:
http://spacebrew.cc/
*/
#include <Bridge.h>
#include <SpacebrewYun.h>
// create a variable of type SpacebrewYun and initialize it with the constructor
SpacebrewYun sb = SpacebrewYun("aYun", "Arduino Yun spacebrew test");
// create variables to manage interval between each time we send a string
long last = 0;
int interval = 2000;
int counter = 0;
void setup() {
// start the serial port
SerialUSB.begin(57600);
// for debugging, wait until a serial console is connected
delay(4000);
while (!SerialUSB) {
;
}
// start-up the bridge
Bridge.begin();
// configure the spacebrew object to print status messages to serial
sb.verbose(true);
// configure the spacebrew publisher and subscriber
sb.addPublish("string test", "string");
sb.addPublish("range test", "range");
sb.addPublish("boolean test", "boolean");
sb.addPublish("custom test", "crazy");
sb.addSubscribe("string test", "string");
sb.addSubscribe("range test", "range");
sb.addSubscribe("boolean test", "boolean");
sb.addSubscribe("custom test", "crazy");
// register the string message handler method
sb.onRangeMessage(handleRange);
sb.onStringMessage(handleString);
sb.onBooleanMessage(handleBoolean);
sb.onCustomMessage(handleCustom);
// connect to cloud spacebrew server at "sandbox.spacebrew.cc"
sb.connect("sandbox.spacebrew.cc");
// we give some time to arduino to connect to sandbox, otherwise the first sb.monitor(); call will give an error
delay(1000);
}
void loop() {
// monitor spacebrew connection for new data
sb.monitor();
// connected to spacebrew then send a string every 2 seconds
if (sb.connected()) {
// check if it is time to send a new message
if ((millis() - last) > interval) {
String test_str_msg = "testing, testing, ";
test_str_msg += counter;
counter ++;
sb.send("string test", test_str_msg);
sb.send("range test", 500);
sb.send("boolean test", true);
sb.send("custom test", "youre loco");
last = millis();
}
}
delay(1000);
}
// define handler methods, all standard data type handlers take two appropriate arguments
void handleRange(String route, int value) {
SerialUSB.print("Range msg ");
SerialUSB.print(route);
SerialUSB.print(", value ");
SerialUSB.println(value);
}
void handleString(String route, String value) {
SerialUSB.print("String msg ");
SerialUSB.print(route);
SerialUSB.print(", value ");
SerialUSB.println(value);
}
void handleBoolean(String route, boolean value) {
SerialUSB.print("Boolen msg ");
SerialUSB.print(route);
SerialUSB.print(", value ");
SerialUSB.println(value ? "true" : "false");
}
// custom data type handlers takes three String arguments
void handleCustom(String route, String value, String type) {
SerialUSB.print("Custom msg ");
SerialUSB.print(route);
SerialUSB.print(" of type ");
SerialUSB.print(type);
SerialUSB.print(", value ");
SerialUSB.println(value);
}
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