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87 lines
2.0 KiB
87 lines
2.0 KiB
/*
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Spacebrew String
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Demonstrates how to create a sketch that sends and receives strings
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to and from Spacebrew. Every time string data is received it
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is output to the Serial monitor.
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Make sure that your Yún is connected to the internet for this example
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to function properly.
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The circuit:
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- No circuit required
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created 2013
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by Julio Terra
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This example code is in the public domain.
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More information about Spacebrew is available at:
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http://spacebrew.cc/
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*/
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#include <Bridge.h>
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#include <SpacebrewYun.h>
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// create a variable of type SpacebrewYun and initialize it with the constructor
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SpacebrewYun sb = SpacebrewYun("spacebrewYun Strings", "String sender and receiver");
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// create variables to manage interval between each time we send a string
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long last_time = 0;
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int interval = 2000;
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void setup() {
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// start the serial port
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SerialUSB.begin(57600);
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// for debugging, wait until a serial console is connected
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delay(4000);
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while (!SerialUSB) {
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;
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}
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// start-up the bridge
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Bridge.begin();
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// configure the spacebrew object to print status messages to serial
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sb.verbose(true);
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// configure the spacebrew publisher and subscriber
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sb.addPublish("speak", "string");
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sb.addSubscribe("listen", "string");
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// register the string message handler method
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sb.onStringMessage(handleString);
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// connect to cloud spacebrew server at "sandbox.spacebrew.cc"
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sb.connect("sandbox.spacebrew.cc");
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}
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void loop() {
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// monitor spacebrew connection for new data
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sb.monitor();
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// connected to spacebrew then send a string every 2 seconds
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if (sb.connected()) {
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// check if it is time to send a new message
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if ((millis() - last_time) > interval) {
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sb.send("speak", "is anybody out there?");
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last_time = millis();
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}
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}
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}
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// handler method that is called whenever a new string message is received
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void handleString(String route, String value) {
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// print the message that was received
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SerialUSB.print("From ");
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SerialUSB.print(route);
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SerialUSB.print(", received msg: ");
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SerialUSB.println(value);
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}
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