68 lines
1.9 KiB
Markdown
68 lines
1.9 KiB
Markdown
# Touch to Run
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## Introduction @unplugged
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Use the Touch sensor to run a motor.
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## Step 1
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Open the ``||sensors:Sensors||`` Toolbox drawer. Drag out **2** ``||sensors:on touch||`` blocks onto the Workspace (you can place these anywhere).
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```blocks
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sensors.touch1.onEvent(ButtonEvent.Pressed, function () {
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})
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sensors.touch1.onEvent(ButtonEvent.Pressed, function () {
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})
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```
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## Step 2
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In one of the ``||sensors:on touch||`` blocks, use the second drop-down menu to change from ``pressed`` to ``released``.
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```blocks
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sensors.touch1.onEvent(ButtonEvent.Pressed, function () {
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})
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sensors.touch1.onEvent(ButtonEvent.Released, function () {
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})
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```
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## Step 3
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Open the ``||motors:Motors||`` Toolbox drawer. Drag out a ``||motors:run||`` block onto the Workspace, and drop it into the ``||sensors:on touch pressed||`` block.
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```blocks
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sensors.touch1.onEvent(ButtonEvent.Pressed, function () {
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motors.largeA.run(50)
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})
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sensors.touch1.onEvent(ButtonEvent.Released, function () {
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})
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```
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## Step 4
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Open the ``||motors:Motors||`` Toolbox drawer. Drag out a ``||motors:stop||`` block onto the Workspace, and drop it into the ``||sensors:on touch released||`` block.
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```blocks
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sensors.touch1.onEvent(ButtonEvent.Pressed, function () {
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motors.largeA.run(50)
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})
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sensors.touch1.onEvent(ButtonEvent.Released, function () {
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motors.largeA.stop()
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})
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```
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## Step 5
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Now, plug your EV3 Brick into the computer with the USB cable, and click the **Download** button at the bottom of your screen. Follow the directions to save your program to the brick.
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Attach a Large motor to Port A, and a Touch sensor to Port 1 on your brick. Test your program by pressing and releasing the touch sensor – does the motor start and stop as expected?
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