{"id":2630,"date":"2020-08-20T04:27:36","date_gmt":"2020-08-19T21:27:36","guid":{"rendered":"https:\/\/www.phidgets.com\/education\/?page_id=2630"},"modified":"2022-08-31T23:53:00","modified_gmt":"2022-08-31T16:53:00","slug":"dataevents_2","status":"publish","type":"page","link":"https:\/\/www.phidgets.com\/education\/learn\/getting-started-kit-tutorial\/dataevents_2\/","title":{"rendered":"Getting Started Kit – Button & LED Events"},"content":{"rendered":"

[et_pb_section bb_built=”1″ fullwidth=”off” specialty=”on” inner_width=”auto” inner_max_width=”1200px”][et_pb_column type=”1_3″][et_pb_code admin_label=”ph-vertical-menu” _builder_version=”4.6.6″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″]<\/p>\n

Button Events <\/a> Button & LED Events <\/a> Overview <\/a> Write Code <\/a> Run Your Program <\/a> Practice <\/a> Troubleshoot <\/a> Smart Phidget Events <\/a> Attach\/Detach Events <\/a> Data Interval <\/a> <\/div>\n

[\/et_pb_code][et_pb_code admin_label=”ph-vertical-menu” _builder_version=”4.6.6″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ disabled=”on” disabled_on=”on|on|on”]<\/p>\n

LED Brightness <\/a> Closing Phidgets <\/a> Button Events <\/a> Button & LED Events <\/a> Overview <\/a> Write code <\/a> Practice <\/a> Troubleshoot <\/a> Smart Phidget Events <\/a> Attach\/Detach Events <\/a> Data Interval <\/a> Two or More Smart Phidgets <\/a> Two or More VINT Hubs <\/a> Errors <\/a> Using the Sensor API <\/a> Using the Phidget API <\/a><\/div>\n

[\/et_pb_code][\/et_pb_column][et_pb_column type=”2_3″ specialty_columns=”4″][et_pb_row_inner _builder_version=”4.4.5″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” module_id=”overview” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″][et_pb_column_inner type=”4_4″ saved_specialty_column_type=”2_3″ custom_padding__hover=”|||” custom_padding=”|||” saved_specialty_column_type=”2_3″][et_pb_code admin_label=”Advanced – 3 – Button & LED Events” _builder_version=”4.4.5″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″]<\/p>\n

Getting started tutorial<\/a><\/div>\n

<\/p>\n

Advanced Lesson<\/div>\n

<\/p>\n

Button & LED Events<\/h1>\n

In this lesson, you\u2019ll learn how to write a program that gets input from a button using events and outputs to an LED!<\/pee>[\/et_pb_code][et_pb_image _builder_version=”4.18.0″ src=”https:\/\/www.phidgets.com\/education\/wp-content\/uploads\/2022\/08\/button-led-press.gif” box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ align=”center” background_pattern_color=”rgba(0,0,0,0.2)” background_mask_color=”#ffffff” \/][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner _builder_version=”4.4.5″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” module_id=”write-code” module_class=”ph-hidden-anchor” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″][et_pb_column_inner type=”4_4″ saved_specialty_column_type=”2_3″ custom_padding__hover=”|||” custom_padding=”|||” saved_specialty_column_type=”2_3″][et_pb_code admin_label=”Write Code – row hidden anchor” _builder_version=”4.4.5″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ \/][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner admin_label=”Row” _builder_version=”4.4.5″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” module_class=”ph-user-java” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″][et_pb_column_inner type=”4_4″ saved_specialty_column_type=”2_3″ custom_padding__hover=”|||” custom_padding=”|||” saved_specialty_column_type=”2_3″][et_pb_code admin_label=”Write code Java” _builder_version=”4.6.6″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″]<\/p>\n

Write Code (Java)<\/h2>\n

Copy the code below into the project you created. If you don’t have a project or forgot how to create one, revisit the Configure section<\/a>.<\/pee>Not your programming language? Set your preferences<\/a> so we can display relevant code examples<\/pee>[\/et_pb_code][et_pb_code admin_label=”Code Sample – Netbeans” _builder_version=”4.4.5″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ module_class=”ph-user-netbeans”]<\/p>\n

  package gettingstarted;\/\/Add Phidgets Libraryimport com.phidget22.*;public class GettingStarted {    \/\/Turn on\/off LEDs with Global Variables    static boolean turnRedLEDOn = false;    static boolean turnGreenLEDOn = false;    \/\/Handle Exceptions    public static void main(String[] args) throws Exception {        \/\/Create        DigitalInput redButton = new DigitalInput();        DigitalInput greenButton = new DigitalInput();        DigitalOutput redLED = new DigitalOutput();        DigitalOutput greenLED = new DigitalOutput();        \/\/Address        redButton.setHubPort(0);        redButton.setIsHubPortDevice(true);        greenButton.setHubPort(5);        greenButton.setIsHubPortDevice(true);        redLED.setHubPort(1);        redLED.setIsHubPortDevice(true);        greenLED.setHubPort(4);        greenLED.setIsHubPortDevice(true);        \/\/Event | Event code runs when data input from the sensor changes. The following event is a state change event. The code will listen to the button (Digital Input Object) and only run the contain code when the button is pressed or released (state changes).        redButton.addStateChangeListener(new DigitalInputStateChangeListener() {            public void onStateChange(DigitalInputStateChangeEvent e) {                \/\/Record button state to turn on\/off the red LED                turnRedLEDOn = e.getState();             }        });        \/\/Event | Event code runs when data input from the sensor changes. The following event is a state change event. It will listen to the button (Digital Input Object) and only run the contain code when the button is pressed or released (state changes).        greenButton.addStateChangeListener(new DigitalInputStateChangeListener() {            public void onStateChange(DigitalInputStateChangeEvent e) {                \/\/Record button state to turn on\/off the green LED                turnGreenLEDOn = e.getState();            }        });        \/\/Open        redLED.open(1000);        greenLED.open(1000);        redButton.open(1000);        greenButton.open(1000);        \/\/Use your Phidgets | In the button events you recorded the Button State. Here we will use that data to turn on\/off the LEDs        while(true) {            \/\/turn red LED on based on red button input            redLED.setState(turnRedLEDOn);            \/\/turn green LED on based on green button input            greenLED.setState(turnGreenLEDOn);            \/\/sleep for 150 milliseconds             Thread.sleep(150);        }    }}  <\/code><\/pre>\n
[\/et_pb_code][et_pb_code admin_label=”Code Sample – Eclipse” _builder_version=”4.4.5″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ module_class=”ph-user-eclipse”]<\/p>\n
  \/\/Add Phidgets Libraryimport com.phidget22.*;public class GettingStarted {    \/\/Turn on\/off LEDs with Global Variables    static boolean turnRedLEDOn = false;    static boolean turnGreenLEDOn = false;    \/\/Handle Exceptions    public static void main(String[] args) throws Exception {        \/\/Create        DigitalInput redButton = new DigitalInput();        DigitalInput greenButton = new DigitalInput();        DigitalOutput redLED = new DigitalOutput();        DigitalOutput greenLED = new DigitalOutput();        \/\/Address        redButton.setHubPort(0);        redButton.setIsHubPortDevice(true);        greenButton.setHubPort(5);        greenButton.setIsHubPortDevice(true);        redLED.setHubPort(1);        redLED.setIsHubPortDevice(true);        greenLED.setHubPort(4);        greenLED.setIsHubPortDevice(true);        \/\/Event | Event code runs when data input from the sensor changes. The following event is a state change event. The code will listen to the button (Digital Input Object) and only run the contain code when the button is pressed or released (state changes).        redButton.addStateChangeListener(new DigitalInputStateChangeListener() {            public void onStateChange(DigitalInputStateChangeEvent e) {                \/\/Record button state to turn on\/off the red LED                turnRedLEDOn = e.getState();             }        });        \/\/Event | Event code runs when data input from the sensor changes. The following event is a state change event. It will listen to the button (Digital Input Object) and only run the contain code when the button is pressed or released (state changes).        greenButton.addStateChangeListener(new DigitalInputStateChangeListener() {            public void onStateChange(DigitalInputStateChangeEvent e) {                \/\/Record button state to turn on\/off the green LED                turnGreenLEDOn = e.getState();            }        });        \/\/Open        redLED.open(1000);        greenLED.open(1000);        redButton.open(1000);        greenButton.open(1000);        \/\/Use your Phidgets | In the button events you recorded the Button State. Here we will use that data to turn on\/off the LEDs        while(true) {            \/\/turn red LED on based on red button input            redLED.setState(turnRedLEDOn);            \/\/turn green LED on based on green button input            greenLED.setState(turnGreenLEDOn);            \/\/sleep for 150 milliseconds             Thread.sleep(150);        }    }}  <\/code><\/pre>\n
[\/et_pb_code][et_pb_code admin_label=”Code Sample – Processing” _builder_version=”4.6.6″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ module_class=”ph-user-processing”]<\/p>\n
  \/\/Add Phidgets Libraryimport com.phidget22.*;\/\/DefineDigitalInput redButton;DigitalInput greenButton;DigitalOutput redLED;DigitalOutput greenLED;boolean turnRedLEDOn = false;boolean turnGreenLEDOn = false;void setup(){  try{        \/\/Create     redButton = new DigitalInput();    greenButton = new DigitalInput();    redLED = new DigitalOutput();    greenLED = new DigitalOutput();        \/\/Address    redButton.setHubPort(0);    redButton.setIsHubPortDevice(true);    greenButton.setHubPort(5);    greenButton.setIsHubPortDevice(true);    redLED.setHubPort(1);    redLED.setIsHubPortDevice(true);    greenLED.setHubPort(4);    greenLED.setIsHubPortDevice(true);    \/\/Event | Event code runs when data input from the sensor changes. The following event is a state change event. The code will listen to the button (Digital Input Object) and only run the contain code when the button is pressed or released (state changes).    redButton.addStateChangeListener(new DigitalInputStateChangeListener() {        public void onStateChange(DigitalInputStateChangeEvent e) {            \/\/Record button state to turn on\/off the red LED            turnRedLEDOn = e.getState();         }    });    \/\/Event | Event code runs when data input from the sensor changes. The following event is a state change event. The code will listen to the button (Digital Input Object) and only run the contain code when the button is pressed or released (state changes).    greenButton.addStateChangeListener(new DigitalInputStateChangeListener() {        public void onStateChange(DigitalInputStateChangeEvent e) {            \/\/Record button state to turn on\/off the green LED            turnGreenLEDOn = e.getState();        }    });            \/\/Open    redLED.open(1000);    greenLED.open(1000);    redButton.open(1000);    greenButton.open(1000);      }catch(Exception e){    e.printStackTrace();  }}void draw(){  try{    \/\/Use your Phidgets | In the button events you recorded the Button State. Here we will use that data to turn on\/off the LEDs    \/\/turn red LED on based on red button input    redLED.setState(turnRedLEDOn);    \/\/turn green LED on based on green button input    greenLED.setState(turnGreenLEDOn);    delay(150);      }catch(Exception e){    e.printStackTrace();  }}  <\/code><\/pre>\n
[\/et_pb_code][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner admin_label=”Row” _builder_version=”4.4.5″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” module_class=”ph-user-python” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″][et_pb_column_inner type=”4_4″ saved_specialty_column_type=”2_3″ custom_padding__hover=”|||” custom_padding=”|||” saved_specialty_column_type=”2_3″][et_pb_code admin_label=”Write code Python” _builder_version=”4.6.6″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″]<\/p>\n
Write Code (Python)<\/h2>\n
Copy the code below into the project you created. If you don’t have a project or forgot how to create one, revisit the Configure section<\/a>.<\/pee>Not your programming language? Set your preferences<\/a> so we can display relevant code examples<\/pee>[\/et_pb_code][et_pb_code admin_label=”Code Sample” _builder_version=”4.6.6″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″]<\/p>\n
  #Add Phidgets Libraryfrom Phidget22.Phidget import *from Phidget22.Devices.DigitalInput import *from Phidget22.Devices.DigitalOutput import *import time#Event | Event code runs when data input from the sensor changes. The following event is a state change event. The code will listen to the button (Digital Input Object) and only run the contain code when the button is pressed or released (state changes).def redButtonStateChange(self, state):    global turnRedLEDOn    #Record button state to turn on\/off the red LED    turnRedLEDOn = state#Event | Event code runs when data input from the sensor changes. The following event is a state change event. The code will listen to the button (Digital Input Object) and only run the contain code when the button is pressed or released (state changes).def greenButtonStateChange(self, state):    global turnGreenLEDOn    #Record button state to turn on\/off the green LED    turnGreenLEDOn = state#CreateredButton = DigitalInput()greenButton = DigitalInput()redLED = DigitalOutput()greenLED = DigitalOutput()#AddressredButton.setHubPort(0)redButton.setIsHubPortDevice(True)greenButton.setHubPort(5)greenButton.setIsHubPortDevice(True)redLED.setHubPort(1)redLED.setIsHubPortDevice(True)greenLED.setHubPort(4)greenLED.setIsHubPortDevice(True)#Subscribe to events | Subscribing to an Event tells your program to start listening to a Phidget. Here, the program will begin to listen to the state of the button (Digital Input Object).redButton.setOnStateChangeHandler(redButtonStateChange)greenButton.setOnStateChangeHandler(greenButtonStateChange)#OpenredButton.openWaitForAttachment(1000)greenButton.openWaitForAttachment(1000)redLED.openWaitForAttachment(1000)greenLED.openWaitForAttachment(1000)#Turn on\/off LEDs with Global VariablesturnRedLEDOn = FalseturnGreenLEDOn = False#Use your Phidgets | In the button events you recorded the Button State. Here we will use that data to turn on\/off the LEDswhile (True):    #turn red LED on based on red button input    redLED.setState(turnRedLEDOn)    #turn green LED on based on red button input    greenLED.setState(turnGreenLEDOn)    time.sleep(0.15)  <\/code><\/pre>\n
[\/et_pb_code][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner admin_label=”Row” _builder_version=”4.4.5″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” module_class=”ph-user-csharp” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″][et_pb_column_inner type=”4_4″ saved_specialty_column_type=”2_3″ custom_padding__hover=”|||” custom_padding=”|||” saved_specialty_column_type=”2_3″][et_pb_code admin_label=”Write code C#” _builder_version=”4.6.6″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″]<\/p>\n
Write Code (C#)<\/h2>\n
Copy the code below into the project you created. If you don’t have a project or forgot how to create one, revisit the Configure section<\/a>.<\/pee>Not your programming language? Set your preferences<\/a> so we can display relevant code examples<\/pee>[\/et_pb_code][et_pb_code admin_label=”Code Sample” _builder_version=”4.4.5″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″]<\/p>\n
  \/\/Add Phidgets Libraryusing Phidget22;using Phidget22.Events;namespace GettingStarted{    class Program    {        \/\/ Turn on\/off LEDs with Global Variables        static bool turnRedLEDOn = false;        static bool turnGreenLEDOn = false;                \/\/Event | Event code runs when data input from the sensor changes. The following event is a state change event. The code will listen to the button (Digital Input Object) and only run the contain code when the button is pressed or released (state changes).        private static void redButton_StateChange(object sender, DigitalInputStateChangeEventArgs e)        {            \/\/Record button state to turn on\/off the red LED            turnRedLEDOn = e.State;        }                \/\/Event | Event code runs when data input from the sensor changes. The following event is a state change event. The code will listen to the button (Digital Input Object) and only run the contain code when the button is pressed or released (state changes).        private static void greenButton_StateChange(object sender, DigitalInputStateChangeEventArgs e)        { \t        \/\/Record button state to turn on\/off the green LED            turnGreenLEDOn = e.State;        }        static void Main(string[] args)        {            \/\/Create            DigitalInput redButton = new DigitalInput();            DigitalInput greenButton = new DigitalInput();            DigitalOutput redLED = new DigitalOutput();            DigitalOutput greenLED = new DigitalOutput();            \/\/Address            redButton.HubPort = 0;            redButton.IsHubPortDevice = true;            greenButton.HubPort = 5;            greenButton.IsHubPortDevice = true;            redLED.HubPort = 1;            redLED.IsHubPortDevice = true;            greenLED.HubPort = 4;            greenLED.IsHubPortDevice = true;            \/\/Subscribe to events | Subscribing to an Event tells your program to start listening to a Phidget. Here, the program will begin to listen to the state of the button (Digital Input Object).            redButton.StateChange += redButton_StateChange;            greenButton.StateChange += greenButton_StateChange;            \/\/Open            redLED.Open(1000);            greenLED.Open(1000);            redButton.Open(1000);            greenButton.Open(1000);            \/\/Use your Phidgets | In the button events you recorded the Button State. Here we will use that data to turn on\/off the LEDs            while (true)            {                \/\/ turn red LED on based on red button input                redLED.State = turnRedLEDOn;                \/\/ turn green LED on based on red button input                greenLED.State = turnGreenLEDOn;                System.Threading.Thread.Sleep(150);            }        }    }}  <\/code><\/pre>\n
[\/et_pb_code][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner admin_label=”Row” _builder_version=”4.4.5″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” module_class=”ph-user-swift” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″][et_pb_column_inner type=”4_4″ saved_specialty_column_type=”2_3″ custom_padding__hover=”|||” custom_padding=”|||” saved_specialty_column_type=”2_3″][et_pb_code admin_label=”Write code Swift” _builder_version=”4.6.6″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″]<\/p>\n
Write Code (Swift)<\/h2>\n
Oops, how did you end up here? There is no Button Events lesson for Swift. Go back to the main tutorial page<\/a>.<\/pee>[\/et_pb_code][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner admin_label=”Row” _builder_version=”4.6.6″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” module_id=”run-program” module_class=”ph-hidden-anchor” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″][et_pb_column_inner type=”4_4″ saved_specialty_column_type=”2_3″ custom_padding__hover=”|||” custom_padding=”|||” saved_specialty_column_type=”2_3″][et_pb_code admin_label=”Run Program – row hidden anchor” _builder_version=”4.6.6″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ \/][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner _builder_version=”4.4.5″][et_pb_column_inner type=”4_4″ saved_specialty_column_type=”2_3″ custom_padding__hover=”|||” custom_padding=”|||” saved_specialty_column_type=”2_3″][et_pb_code admin_label=”Run Program” _builder_version=”4.6.6″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″]<\/p>\n
Run Your Program<\/h2>\n
When you press a button, the corresponding LED will blink.<\/pee>[\/et_pb_code][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner _builder_version=”4.4.5″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” module_id=”practice” module_class=”ph-hidden-anchor” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″][et_pb_column_inner type=”4_4″ saved_specialty_column_type=”2_3″ custom_padding__hover=”|||” custom_padding=”|||” saved_specialty_column_type=”2_3″][et_pb_code admin_label=”Practice – row hidden anchor” _builder_version=”4.4.5″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ \/][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner admin_label=”Row” _builder_version=”4.4.5″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″][et_pb_column_inner type=”4_4″ saved_specialty_column_type=”2_3″ custom_padding__hover=”|||” custom_padding=”|||” saved_specialty_column_type=”2_3″][et_pb_code admin_label=”Practice” _builder_version=”4.4.5″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″]<\/p>\n
Practice<\/h2>\n
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        <\/p>\n
  1. Compare the code sample to the code sample in Lesson 3<\/a>. Note the differences in the code and the program\u2019s output.<\/li>\n
    <\/p>\n
  2. Modify your code so the green button controls the red LED and the red button controls the green LED.<\/li>\n
    <\/p>\n
  3. Modify your code to count the total number of button presses.<\/li>\n
    <\/p>\n
  4. Challenge: Recreate the tug of war game from  Simple Phidgets <\/a>. Each player is assigned a button (red or green). Players will race to see who can press their button ten times first. You should turn both LEDs on and print the winner to the user.<\/li>\n
    <\/ol>\n
    [\/et_pb_code][et_pb_code admin_label=”Email for Solutions” _builder_version=”4.6.6″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ saved_tabs=”all” global_module=”4139″]Solutions available for educators. Email us for access.<\/a><\/i><\/pee>[\/et_pb_code][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner admin_label=”Row” _builder_version=”4.4.1″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″ module_id=”troubleshoot”][et_pb_column_inner type=”4_4″ saved_specialty_column_type=”2_3″ custom_padding__hover=”|||” custom_padding=”|||” saved_specialty_column_type=”2_3″][et_pb_toggle admin_label=”Troubleshoot” _builder_version=”4.4.3″ title=”Troubleshoot” text_shadow_horizontal_length=”text_shadow_style,%91object Object%93″ text_shadow_horizontal_length_tablet=”0px” text_shadow_vertical_length=”text_shadow_style,%91object Object%93″ text_shadow_vertical_length_tablet=”0px” text_shadow_blur_strength=”text_shadow_style,%91object Object%93″ text_shadow_blur_strength_tablet=”1px” title_text_shadow_horizontal_length=”title_text_shadow_style,%91object Object%93″ title_text_shadow_horizontal_length_tablet=”0px” title_text_shadow_vertical_length=”title_text_shadow_style,%91object Object%93″ title_text_shadow_vertical_length_tablet=”0px” title_text_shadow_blur_strength=”title_text_shadow_style,%91object Object%93″ title_text_shadow_blur_strength_tablet=”1px” closed_title_text_shadow_horizontal_length=”closed_title_text_shadow_style,%91object Object%93″ closed_title_text_shadow_horizontal_length_tablet=”0px” closed_title_text_shadow_vertical_length=”closed_title_text_shadow_style,%91object Object%93″ closed_title_text_shadow_vertical_length_tablet=”0px” closed_title_text_shadow_blur_strength=”closed_title_text_shadow_style,%91object Object%93″ closed_title_text_shadow_blur_strength_tablet=”1px” body_text_shadow_horizontal_length=”body_text_shadow_style,%91object Object%93″ body_text_shadow_horizontal_length_tablet=”0px” body_text_shadow_vertical_length=”body_text_shadow_style,%91object Object%93″ body_text_shadow_vertical_length_tablet=”0px” body_text_shadow_blur_strength=”body_text_shadow_style,%91object Object%93″ body_text_shadow_blur_strength_tablet=”1px” body_link_text_shadow_horizontal_length=”body_link_text_shadow_style,%91object Object%93″ body_link_text_shadow_horizontal_length_tablet=”0px” body_link_text_shadow_vertical_length=”body_link_text_shadow_style,%91object Object%93″ body_link_text_shadow_vertical_length_tablet=”0px” body_link_text_shadow_blur_strength=”body_link_text_shadow_style,%91object Object%93″ body_link_text_shadow_blur_strength_tablet=”1px” body_ul_text_shadow_horizontal_length=”body_ul_text_shadow_style,%91object Object%93″ body_ul_text_shadow_horizontal_length_tablet=”0px” body_ul_text_shadow_vertical_length=”body_ul_text_shadow_style,%91object Object%93″ body_ul_text_shadow_vertical_length_tablet=”0px” body_ul_text_shadow_blur_strength=”body_ul_text_shadow_style,%91object Object%93″ body_ul_text_shadow_blur_strength_tablet=”1px” body_ol_text_shadow_horizontal_length=”body_ol_text_shadow_style,%91object Object%93″ body_ol_text_shadow_horizontal_length_tablet=”0px” body_ol_text_shadow_vertical_length=”body_ol_text_shadow_style,%91object Object%93″ body_ol_text_shadow_vertical_length_tablet=”0px” body_ol_text_shadow_blur_strength=”body_ol_text_shadow_style,%91object Object%93″ body_ol_text_shadow_blur_strength_tablet=”1px” body_quote_text_shadow_horizontal_length=”body_quote_text_shadow_style,%91object Object%93″ body_quote_text_shadow_horizontal_length_tablet=”0px” body_quote_text_shadow_vertical_length=”body_quote_text_shadow_style,%91object Object%93″ body_quote_text_shadow_vertical_length_tablet=”0px” body_quote_text_shadow_blur_strength=”body_quote_text_shadow_style,%91object Object%93″ body_quote_text_shadow_blur_strength_tablet=”1px” box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″]<\/p>\n
    I am getting a “Timed Out” exception.<\/strong><\/p>\n
      \n
    1. Make sure the USB cable from your VINT Hub to your computer is attached properly.<\/li>\n
    2. Make the Phidget cable (the black, red and white one) is connected to your VINT Hub and to your Humidity Phidget properly).<\/li>\n
    3. Make sure no other program is running that uses Phidgets. If a Phidget is already in use in another program, it will be busy and won’t respond to this one.<\/li>\n<\/ol>\n
      Still having issues?<\/strong><\/p>\n
      Visit the Advanced Troubleshooting Page<\/a> or contact us (education@phidgets.com).<\/p>\n
      [\/et_pb_toggle][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner admin_label=”Row” _builder_version=”4.4.3″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” disabled=”on” disabled_on=”on|on|on” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″][et_pb_column_inner type=”4_4″ saved_specialty_column_type=”2_3″ custom_padding__hover=”|||” custom_padding=”|||” saved_specialty_column_type=”2_3″][et_pb_code admin_label=”ph-button-cta: Finish” _builder_version=”4.4.1″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″]  <\/p>\n
      <\/div>\n
        Finish<\/a>[\/et_pb_code][\/et_pb_column_inner][\/et_pb_row_inner][et_pb_row_inner admin_label=”Row” disabled_on=”off|off|off” disabled=”off” _builder_version=”4.4.3″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″][et_pb_column_inner type=”4_4″ saved_specialty_column_type=”2_3″ custom_padding__hover=”|||” custom_padding=”|||” saved_specialty_column_type=”2_3″][et_pb_code admin_label=”ph-button-progress-ctn” _builder_version=”4.4.5″ box_shadow_horizontal_tablet=”0px” box_shadow_vertical_tablet=”0px” box_shadow_blur_tablet=”40px” box_shadow_spread_tablet=”0px” vertical_offset_tablet=”0″ horizontal_offset_tablet=”0″ z_index_tablet=”0″]<\/p>\n
              Back to Button Events  <\/a>        Next: Smart Phidget Events  <\/a><\/div>\n
      [\/et_pb_code][\/et_pb_column_inner][\/et_pb_row_inner][\/et_pb_column][\/et_pb_section]<\/p>\n","protected":false},"excerpt":{"rendered":"
      package gettingstarted;\/\/Add Phidgets Libraryimport com.phidget22.*;public class GettingStarted { \/\/Turn on\/off LEDs with Global Variables static boolean turnRedLEDOn = false; static boolean turnGreenLEDOn = false; \/\/Handle Exceptions public static void main(String[] args) throws Exception { \/\/Create DigitalInput redButton = new DigitalInput(); DigitalInput greenButton = new DigitalInput(); DigitalOutput redLED = new DigitalOutput(); DigitalOutput greenLED = new DigitalOutput(); […]<\/p>\n","protected":false},"author":3,"featured_media":0,"parent":309,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_et_pb_use_builder":"on","_et_pb_old_content":"\r\n
      This is an example page. It's different from a blog post because it will stay in one place and will show up in your site navigation (in most themes). Most people start with an About page that introduces them to potential site visitors. It might say something like this:<\/p>\r\n\r\n
      \r\n
      Hi there! I'm a bike messenger by day, aspiring actor by night, and this is my website. I live in Los Angeles, have a great dog named Jack, and I like pi\u00f1a coladas. (And gettin' caught in the rain.)<\/p>\r\n<\/blockquote>\r\n\r\n
      ...or something like this:<\/p>\r\n\r\n
      \r\n
      The XYZ Doohickey Company was founded in 1971, and has been providing quality doohickeys to the public ever since. Located in Gotham City, XYZ employs over 2,000 people and does all kinds of awesome things for the Gotham community.<\/p>\r\n<\/blockquote>\r\n\r\n
      As a new WordPress user, you should go to your dashboard<\/a> to delete this page and create new pages for your content. Have fun!<\/p>\r\n","_et_gb_content_width":"","footnotes":""},"class_list":["post-2630","page","type-page","status-publish","hentry"],"_links":{"self":[{"href":"https:\/\/www.phidgets.com\/education\/wp-json\/wp\/v2\/pages\/2630","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.phidgets.com\/education\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/www.phidgets.com\/education\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/www.phidgets.com\/education\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.phidgets.com\/education\/wp-json\/wp\/v2\/comments?post=2630"}],"version-history":[{"count":36,"href":"https:\/\/www.phidgets.com\/education\/wp-json\/wp\/v2\/pages\/2630\/revisions"}],"predecessor-version":[{"id":8590,"href":"https:\/\/www.phidgets.com\/education\/wp-json\/wp\/v2\/pages\/2630\/revisions\/8590"}],"up":[{"embeddable":true,"href":"https:\/\/www.phidgets.com\/education\/wp-json\/wp\/v2\/pages\/309"}],"wp:attachment":[{"href":"https:\/\/www.phidgets.com\/education\/wp-json\/wp\/v2\/media?parent=2630"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}