1 | /*
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2 | Spacebrew Boolean
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3 |
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4 | Demonstrates how to create a sketch that sends and receives a
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5 | boolean value to and from Spacebrew. Every time the buttton is
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6 | pressed (or other digital input component) a spacebrew message
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7 | is sent. The sketch also accepts analog range messages from
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8 | other Spacebrew apps.
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9 |
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10 | Make sure that your Y炭n is connected to the internet for this example
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11 | to function properly.
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12 |
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13 | The circuit:
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14 | - Button connected to Y炭n, using the Arduino's internal pullup resistor.
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15 |
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16 | created 2013
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17 | by Julio Terra
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18 |
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19 | This example code is in the public domain.
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20 |
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21 | More information about Spacebrew is available at:
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22 | http://spacebrew.cc/
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23 |
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24 | */
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25 |
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26 | #include <Bridge.h>
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27 | #include <SpacebrewYun.h>
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28 |
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29 | // create a variable of type SpacebrewYun and initialize it with the constructor
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30 | SpacebrewYun sb = SpacebrewYun("spacebrewYun Boolean", "Boolean sender and receiver");
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31 |
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32 | // variable that holds the last potentiometer value
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33 | int last_value = 0;
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34 |
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35 | // create variables to manage interval between each time we send a string
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36 | void setup() {
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37 |
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38 | // start the serial port
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39 | Serial.begin(57600);
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40 |
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41 | // for debugging, wait until a serial console is connected
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42 | delay(4000);
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43 | while (!Serial) { ; }
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44 |
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45 | // start-up the bridge
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46 | Bridge.begin();
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47 |
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48 | // configure the spacebrew object to print status messages to serial
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49 | sb.verbose(true);
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50 |
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51 | // configure the spacebrew publisher and subscriber
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52 | sb.addPublish("physical button", "boolean");
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53 | sb.addSubscribe("virtual button", "boolean");
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54 |
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55 | // register the string message handler method
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56 | sb.onBooleanMessage(handleBoolean);
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57 |
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58 | // connect to cloud spacebrew server at "sandbox.spacebrew.cc"
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59 | sb.connect("sandbox.spacebrew.cc");
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60 |
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61 | pinMode(3, INPUT);
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62 | digitalWrite(3, HIGH);
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63 | }
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64 |
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65 |
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66 | void loop() {
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67 | // monitor spacebrew connection for new data
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68 | sb.monitor();
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69 |
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70 | // connected to spacebrew then send a new value whenever the pot value changes
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71 | if ( sb.connected() ) {
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72 | int cur_value = digitalRead(3);
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73 | if ( last_value != cur_value ) {
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74 | if (cur_value == HIGH) sb.send("physical button", false);
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75 | else sb.send("physical button", true);
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76 | last_value = cur_value;
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77 | }
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78 | }
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79 | }
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80 |
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81 | // handler method that is called whenever a new string message is received
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82 | void handleBoolean (String route, boolean value) {
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83 | // print the message that was received
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84 | Serial.print("From ");
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85 | Serial.print(route);
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86 | Serial.print(", received msg: ");
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87 | Serial.println(value ? "true" : "false");
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88 | }
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89 |
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