c2d26a8418
* starting screen api intergration * Further image integration * Aligning with new screen apis * Build fixes * Adjust to common screen state * Fix unpackPNG * Add game library * Optimize screen rendering * bumping common packages * updated shims * moving images into ev3 * upgrading to common packages * added try/use * cap * fixed tryp age
179 lines
5.4 KiB
Markdown
179 lines
5.4 KiB
Markdown
# Try
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[IMG: Neutral Image Display on EV3 Brick with Music Notes]
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Get a quick introduction to programming with EV3.
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We are excited to help you get started with LEGO MINDSTORMS Education EV3. In this project we will guide you through connecting your EV3 brick, creating your first program, controlling a Large Motor, a Touch Sensor and a Color Sensor. These steps can take up to 45 minutes.
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## Turn on your EV3 Brick
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[IMG: Hand pressing power button, Neutral Image Display, EV3 Brick]
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Power on your EV3 Brick by pressing the Center Button.
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## Connect Your EV3 Brick to Your Device
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[IMG: Hand on cable & computer, Neutral Image Display, EV3 Brick]
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Use the USB cable to connect your EV3 Brick to your device.
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## Create and Run your First Program
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[IMG: Try Program Blocks (see JavaScript below)]
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1 - Create the program shown here:
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```blocks
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brick.buttonEnter.onEvent(ButtonEvent.Pressed, function () {
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brick.showMood(moods.neutral)
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music.playSoundEffect(sounds.communicationHello)
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})
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```
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* Drag a Brick Screen show mood block inside the on button block
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* Change mood to
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```block
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brick.showMood(moods.neutral)
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```
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* Drag a Music play sound effect block below the show mood block
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* Change sound effect to
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```block
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music.playSoundEffect(sounds.communicationHello)
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```
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2 – Click Download and follow the instructions to get your code onto your EV3 Brick. Press the center button on the EV3 Brick to run the program.
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## ~ hint
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Note: Click here for help and more information about the programming blocks.
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## ~
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## Did It Work?
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[IMG: Neutral Image Display, EV3 Brick]
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Verify that the program you just created shows eyes on the Brick Display, and that the EV3 Brick played the sound “Hello!”
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**Well done!**
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## Connect a Large Motor
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[IMG: EV3 Brick with hands connecting Large Motor to Port D]
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Now you will learn to control the Large Motor.
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Connect a Large Motor to Port D of your EV3 Brick using any of the connector cables.
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## Create and Run This Program
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[IMG: Program Blocks (see JavaScript below)]
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1) Create the program shown here:
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```blocks
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brick.buttonEnter.onEvent(ButtonEvent.Pressed, function () {
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motors.largeD.run(50, 1, MoveUnit.Rotations)
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})
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```
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* Start a new program
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* Drag a run large A motor block inside the on button block
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* Change large A to large D motors.largeD.run(50)
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* Click on the + sign
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* Change to 1 rotation
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2) Click Download and follow the instructions to get your code onto your EV3 Brick. Press the center button on the EV3 Brick to run the program.
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## Did It Rotate?
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[IMG: Large Motor D w/Rotating “WHRRR,” Hand, EV3 Brick]
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Confirm that your motor has turned one rotation at power level 50 before stopping.
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Download and run the program as many times as you want in order to verify this, or tinker with different power levels and different rotations.
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## Connect a Touch Sensor
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[IMG: Hands connecting Touch Sensor to Port 1 on EV3 Brick]
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We will now control the Large Motor using a Touch Sensor.
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Keeping the Large Motor connected to **Port D**, connect a Touch Sensor to **Port 1** of your EV3 Brick.
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## Modify Your Program
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[IMG: Program Blocks (see JavaScript below)]
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```blocks
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brick.buttonEnter.onEvent(ButtonEvent.Pressed, function () {
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sensors.touch1.pauseUntil(ButtonEvent.Pressed)
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motors.largeD.run(50, 1, MoveUnit.Rotations)
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})
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```
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1) Add a pause until touch 1 pressed Sensor block on top of the run large D Motor block
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```block
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sensors.touch1.pauseUntil(ButtonEvent.Pressed)
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```
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2) Click Download and follow the instructions to get your code onto your EV3 Brick. Press the center button on the EV3 Brick to run the program.
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## Press the Touch Sensor
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[IMG: Hand Touch Sensor Pressed & EV3 Brick & Large Motor]
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Confirm that the Large Motor has turned one rotation AFTER you press the Touch Sensor.
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Download and run the program as many times as you want in order to verify this, or tinker with different Touch Sensor and Large Motor values.
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## Connect a Color Sensor
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[IMG: Hand connecting Color Sensor to Port 4, Large Motor D, EV3 Brick]
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Now we will try to control the Large Motor using another sensor.
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Keeping the Large Motor connected to **Port D**, connect the Color Sensor to **Port 4**.
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Modify Your Program
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[IMG: Program Blocks (see JavaScript below)]
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```blocks
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brick.buttonEnter.onEvent(ButtonEvent.Pressed, function () {
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sensors.color3.pauseForColor(ColorSensorColor.Green)
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motors.largeD.run(50, 1, MoveUnit.Rotations)
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})
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```
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1) Using the same program, replace the pause until touch 1 block with a pause color 3 for color block
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```block
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sensors.color3.pauseForColor(ColorSensorColor.Green)
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```
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2) Select the color you want to detect (e.g., green).
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3) Click Download and follow the instructions to get your code onto your EV3 Brick. Press the center button on the EV3 Brick to run the program.
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## Place a Colored Brick in Front of the Color Sensor
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[IMG: Colored bricks in front of Color Sensor, hands, EV3 Brick]
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Confirm that the Large Motor has turned one rotation AFTER the Color Sensor has detected the colored brick.
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Download and run the program as many times as you want in order to verify this, or tinker with different Color Sensor and Large Motor values.
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Click on the JavaScript tab and change the color the Color Sensor detects to Black, Blue, Green, Yellow, Red, White, or Brown. Use Title Case for the color names.
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## Well Done!
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[IMG: EV3 Driving Base]
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You have now learned how to control some of the inputs and outputs of the EV3.
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