83 lines
1.9 KiB
Markdown
83 lines
1.9 KiB
Markdown
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# Code
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### @description code to make the Milky Monster alive
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### ~avatar avatar
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Add code to make the Milky Monster move.
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### ~
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## Duration: ~30 minutes
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## Step 1: calibrate servo
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In order for the Milky Monster to move, the @boardname@ needs to command the servo to go between ``0`` and ``180`` degrees at a certain pace. In the code below:
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- the user pressed button ``A`` to switch the servo to 180 degrees (to close the mouth of Milky Monster).
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- the user pressed button ``B`` to switch the servo to 0 degrees (to open the mouth of Milky Monster).
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```blocks
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input.onButtonPressed(Button.A, () => {
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pins.servoWritePin(AnalogPin.P0, 180)
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basic.showNumber(180)
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})
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input.onButtonPressed(Button.B, () => {
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pins.servoWritePin(AnalogPin.P0, 0)
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basic.showNumber(0)
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})
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basic.showString("calibrate")
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```
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## Step 2: attach rotor
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The servo should be positioned on 180 degrees **before** attaching the rotor to it. This is to make sure the mouth of the Milky Monster will be closed once the servo reaches 180 degrees.
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### ~ hint
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You may use a philips scew driver to attach the rotor to the servo.
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### ~
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https://youtu.be/YZfkMWTeH4o
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## Step 3: check calibration
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When the user pressed ``A`` the servo rotor should be in 'up' position.
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https://youtu.be/bAqXEawUsSM
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## Step 4: connect cord to rotor
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Connect the cord to the servo rotor while mouth of Milky Monster is **closed**.
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https://youtu.be/AWsnwk_iA_A
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## Step 5: connect cables to @boardname@
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Connect cables from @boardname@ to the servo and place the battery.
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https://youtu.be/fAR58GJUZdM
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## Step 6: code light sensor
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Code the lightsensor on the @boardname@ to control the servo.
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```blocks
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basic.forever(() => {
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pins.servoWritePin(AnalogPin.P0, input.lightLevel())
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led.plotBarGraph(
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input.lightLevel(),
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0
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)
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})
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```
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## Step 6: Ready!
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Your Milky Monster is ready!
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https://youtu.be/egl3fNAYylk
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### ~button /projects/milky-monster/connect
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NEXT: Connect
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### ~
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