treeseeder.md

Replanting Our Forests with Automated Tree Seeders

fwd-edu-breakout=github:climate-action-kits/pxt-fwd-edu/fwd-breakout
=github:climate-action-kits/pxt-fwd-edu

Step 1 @showdialog

Welcome to Replanting Our Forests with Automated Tree Seeders Coding Tutorial

Step 2 @showdialog

In this coding tutorial we will have the tree seeding vehicle drive forward using the continuous servo motors and drop 4 'simulated seeds' at set time intervals using the positional servo motor.

Step 3 @showdialog

Turn on the Climate Action Kit board.

Step 4 @showhint

Click three dots besides the |Download| button and follow the steps to pair your micro:bit.

Step 5 @showhint

Next, click the |Download| button to download the blank project to start-up the simulators.

Step 6 @showdialog

This is how the simulators should look after a successful download. You can see the Servo Motors along side the Pump.

Step 7 @showhint

Look below the @boardname@ simulator to see the Climate Action Board and the connected devices. Try to turn the motors on and off using the simulator and observe the changes.

Step 8

Click ||fwdMotors:Motors|| drag and drop ||fwdMotors:Setup Driving|| block inside ||basic:on start|| loop.

fwdMotors.setupDriving(
fwdMotors.leftServo,
fwdMotors.leftServo,
)

Step 9

Change the ||fwdMotors:left motor to leftServo|| and ||fwdMotors: right motor to rightServo||.

fwdMotors.setupDriving(
fwdMotors.leftServo,
fwdMotors.rightServo,
)

Step 10

Click ||fwdMotors:Motors|| drag and drop ||fwdMotors:set leftServo to 0°|| block under ||fwdMotors:Setup Driving|| block. Change ||fwdMotors:leftServo|| to ||fwdMotors:middleServo||.

fwdMotors.setupDriving(
fwdMotors.leftServo,
fwdMotors.rightServo,
)
fwdMotors.middleServo.fwdSetAngle(0)

Step 11

Click ||input:Input|| drag and drop ||input:on button A pressed|| block in workspace.

fwdMotors.setupDriving(
fwdMotors.leftServo,
fwdMotors.rightServo,
)
fwdMotors.middleServo.fwdSetAngle(0)
input.onButtonPressed(Button.A, function () {    
    })
)

Step 12

Click ||loops:Loops|| drag and drop ||loops:repeat 4 times|| block inside ||input:on button A pressed|| block.

fwdMotors.setupDriving(
fwdMotors.leftServo,
fwdMotors.rightServo,
)
fwdMotors.middleServo.fwdSetAngle(0)
input.onButtonPressed(Button.A, function () {
    for (let index = 0; index < 4; index++) {}
})

Step 13

Click ||fwdMotors:Motors|| drag and drop ||fwdMotors:drive forward at 50%|| block inside ||loops:repeat 4 times|| loop block.

fwdMotors.setupDriving(
fwdMotors.leftServo,
fwdMotors.rightServo,
)
fwdMotors.middleServo.fwdSetAngle(0)
input.onButtonPressed(Button.A, function () {
    for (let index = 0; index < 4; index++) {
    fwdMotors.drive(fwdMotors.DrivingDirection.Forward, 50)
    }
})

Step 14

Click ||basic:Basic|| drag and drop ||basic:pause (ms) 100|| block under ||fwdMotors:drive forward at 50%|| block.

fwdMotors.setupDriving(
fwdMotors.leftServo,
fwdMotors.rightServo,
)
fwdMotors.middleServo.fwdSetAngle(0)
input.onButtonPressed(Button.A, function () {
    for (let index = 0; index < 4; index++) {
    fwdMotors.drive(fwdMotors.DrivingDirection.Forward, 50)
    basic.pause(100)
    }
})

Step 15

Change ||basic:pause (ms) 100|| to ||basic: (ms) 2000||.

fwdMotors.setupDriving(
fwdMotors.leftServo,
fwdMotors.rightServo,
)
fwdMotors.middleServo.fwdSetAngle(0)
input.onButtonPressed(Button.A, function () {
    for (let index = 0; index < 4; index++) {
    fwdMotors.drive(fwdMotors.DrivingDirection.Forward, 50)
    basic.pause(2000)
    }
})

Step 16

Click ||fwdMotors:Motors|| drag and drop ||fwdMotors:set leftServo 0°|| block under ||basic:pause (ms) 2000|| block. Change ||fwdMotors:leftServo|| to ||fwdMotors:middleServo||.

fwdMotors.setupDriving(
fwdMotors.leftServo,
fwdMotors.rightServo,
)
fwdMotors.middleServo.fwdSetAngle(0)
input.onButtonPressed(Button.A, function () {
    for (let index = 0; index < 4; index++) {
    fwdMotors.drive(fwdMotors.DrivingDirection.Forward, 50)
    basic.pause(2000)
    fwdMotors.middleServo.fwdSetAngle(0)
    }
})

Step 17

Change ||fwdMotors:set middleServo to 0°|| to ||fwdMotors:45°||

fwdMotors.setupDriving(
fwdMotors.leftServo,
fwdMotors.rightServo,
)
fwdMotors.middleServo.fwdSetAngle(0)
input.onButtonPressed(Button.A, function () {
    for (let index = 0; index < 4; index++) {
    fwdMotors.drive(fwdMotors.DrivingDirection.Forward, 50)
    basic.pause(2000)
    fwdMotors.middleServo.fwdSetAngle(45)
    }
})

Step 18

Click ||basic:Basic|| drag and drop ||basic:pause (ms) 100|| under ||fwdMotors:set middleServo to 45°|| block. Change ||basic:(ms) 100|| to ||basic:(ms) 500||

fwdMotors.setupDriving(
fwdMotors.leftServo,
fwdMotors.rightServo,
)
fwdMotors.middleServo.fwdSetAngle(0)
input.onButtonPressed(Button.A, function () {
    for (let index = 0; index < 4; index++) {
    fwdMotors.drive(fwdMotors.DrivingDirection.Forward, 50)
    basic.pause(2000)
    fwdMotors.middleServo.fwdSetAngle(45)
    basic.pause(500)
    }
})

Step 19

Click ||fwdMotors:Motors|| drag and drop ||fwdMotors:set leftServo to 0°|| block under ||basic:pause (ms) 500|| block. Change ||fwdMotors:leftServo|| to ||fwdMotors:middleServo||.

fwdMotors.setupDriving(
fwdMotors.leftServo,
fwdMotors.rightServo,
)
fwdMotors.middleServo.fwdSetAngle(0)
input.onButtonPressed(Button.A, function () {
    for (let index = 0; index < 4; index++) {
    fwdMotors.drive(fwdMotors.DrivingDirection.Forward, 50)
    basic.pause(2000)
    fwdMotors.middleServo.fwdSetAngle(45)
    basic.pause(500)
    fwdMotors.middleServo.fwdSetAngle(0)
    }
})

Step 20

Click ||fwdMotors:Motors|| drag and drop ||fwdMotors:stop motors|| block under ||loops:repeat 4 times|| block.

fwdMotors.setupDriving(
fwdMotors.leftServo,
fwdMotors.rightServo,
)
fwdMotors.leftServo.fwdSetAngle(0)
input.onButtonPressed(Button.A, function () {
    for (let index = 0; index < 4; index++) {
    fwdMotors.drive(fwdMotors.DrivingDirection.Forward, 50)
    basic.pause(2000)
    fwdMotors.middleServo.fwdSetAngle(45)
    basic.pause(500)
    fwdMotors.middleServo.fwdSetAngle(0)
    }
    fwdMotors.stop()
})

Step 21

Click ||fwdMotors:+|| on ||fwdMotors:Setup Driving|| block inside ||basic:on start|| block. Set bias to ||fwdMotors: 0||.

fwdMotors.setupDriving(
fwdMotors.leftServo,
fwdMotors.rightServo,
0,
)
fwdMotors.leftServo.fwdSetAngle(0)
input.onButtonPressed(Button.A, function () {
    for (let index = 0; index < 4; index++) {
        fwdMotors.drive(fwdMotors.DrivingDirection.Forward, 100)
        basic.pause(2000)
        fwdMotors.middleServo.fwdSetAngle(45)
        basic.pause(500)
        fwdMotors.middleServo.fwdSetAngle(0)
    }
    fwdMotors.stop()
})

Step 22 @showhint

|Download| and test your code. Click the bulb icon to see how the simulator shows the components working.

Step 23 @showdialog

If after |Downloading| your project does not work please refer to the image and make sure your components are assigned correctly.

Step 24 @showdialog

Need help in assigning the right components to their simulators. Watch the video.

Step 25 @showdialog

Congratulations on completing your Replanting Our Forests with Automated Tree Seeders Project!

Step 26 @showdialog

After your project is complete go back to the lesson for more challenges and extensions.