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Smart Farming with Hydroponics & Grow Lights

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

Step 1 @showdialog

Welcome to the Smart Farming with Hydroponics & Grow Lights Coding Tutorial built project

Step 2 @showdialog

In this coding tutorial we will control LED color and timing, count the number of water cycles and the time between waterings.

Step 3 @showdialog

Turn on the Climate Action Kit board. breakout board

Step 4 @showhint

Click three dots besides |Download| button, and click on Connect Device. Next, follow the steps to pair your micro:bit. pair gif

Step 5 @showhint

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

Step 6 @showhint

Look below the @boardname@ simulator to see the Climate Action Board and the connected sensors. Try holding the Moisture Sensor or dipping it in a glass of water. See how the virtual simulators react. moisture

Step 7

Click ||logic: Logic|| drag and drop ||logic:If then Else|| block inside ||basic:forever|| loop.

basic.forever(function () {
   
    if (true) {
          }
    else {
        }
        )}

Step 8

Click ||fwdSensors:Sensors|| drag and drop ||fwdSensors:is soilMoisture1 moisture level over 5%|| to replace ||logic:true|| condition of ||logic:if then else|| block.

basic.forever(function () {
   
    if (fwdSensors.soilMoisture1.fwdIsMoistureLevelPastThreshold(5, fwdSensors.ThresholdDirection.Over)) {
          }
    else {
        }
        )}

Step 9

Click ||basic:basic|| drag and drop ||basic:show icon|| block inside ||logic:if then|| condition. Select ||basic: :)|| icon.

basic.forever(function () {
   
    if (fwdSensors.soilMoisture1.fwdIsMoistureLevelPastThreshold(5, fwdSensors.ThresholdDirection.Over)) {
          basic.showIcon(IconNames.Happy)}
    else {
        }
        )}

Step 10

Click ||basic:basic|| drag and drop ||basic:show icon|| block inside ||logic:else|| condition. Select ||basic: :(|| icon.

basic.forever(function () {
   
    if (fwdSensors.soilMoisture1.fwdIsMoistureLevelPastThreshold(5, fwdSensors.ThresholdDirection.Over)) {
          basic.showIcon(IconNames.Happy)}
    else {
        basic.showIcon(IconNames.Sad)}
        )}

Step 11

Click ||fwdMotors:Motors|| drag and drop ||fwdMotors:run pump for 500|| under ||basic: :(|| icon.

basic.forever(function () {
   
    if (fwdSensors.soilMoisture1.fwdIsMoistureLevelPastThreshold(50, fwdSensors.ThresholdDirection.Over)) {
        basic.showIcon(IconNames.Happy)
        } else {
        basic.showIcon(IconNames.Sad)
        fwdMotors.pump.fwdTimedRun(100)
        }
})

Step 12

Click ||basic:basic|| drag and drop ||basic:pause (ms) 100|| block under ||fwdMotors:run pump for 500|| block. Change the ||basic:100|| to ||basic:500||

basic.forever(function () {
   
    if (fwdSensors.soilMoisture1.fwdIsMoistureLevelPastThreshold(50, fwdSensors.ThresholdDirection.Over)) {
        basic.showIcon(IconNames.Happy)
        } else {
        basic.showIcon(IconNames.Sad)
        fwdMotors.pump.fwdTimedRun(500)
        basic.pause(500)
        basic.clearScreen()
        }
})

Step 13

Click ||basic:basic|| drag and drop ||basic:clear screen|| block under ||basic:pause (ms) 500|| block.

basic.forever(function () {
   
    if (fwdSensors.soilMoisture1.fwdIsMoistureLevelPastThreshold(50, fwdSensors.ThresholdDirection.Over)) {
        basic.showIcon(IconNames.Happy)
        } else {
        basic.showIcon(IconNames.Sad)
        fwdMotors.pump.fwdTimedRun(500)
        basic.pause(500)
        basic.clearScreen()
        }
})

Step 14

Click ||Variables:Variables|| and create ||Variables:5 Variables||

  • ||Variables:timer_start||
  • ||Variables:timer_stop||
  • ||Variables:plant_B||
  • ||Variables:plant_A||
  • ||Variables:run_pump_count||
basic.forever(function () {
    if (fwdSensors.soilMoisture1.fwdIsMoistureLevelPastThreshold(50, fwdSensors.ThresholdDirection.Over)) {
        basic.showIcon(IconNames.Happy)
    } else {
        basic.showIcon(IconNames.Sad)
        fwdMotors.pump.fwdTimedRun(500)
        basic.pause(500)
        basic.clearScreen()
    }
})

Step 15

Click ||Variables:Variables|| drag and drop ||Variables:set plant_A to 0|| inside ||Basic:on start|| block.

basic.forever(function () {
    if (fwdSensors.soilMoisture1.fwdIsMoistureLevelPastThreshold(50, fwdSensors.ThresholdDirection.Over)) {
        basic.showIcon(IconNames.Happy)
    } else {
        basic.showIcon(IconNames.Sad)
        fwdMotors.pump.fwdTimedRun(500)
        basic.pause(500)
        basic.clearScreen()
    }
})
let plant_A = 0

Step 16

Click ||Variables:Variables|| drag and drop ||Variables:set plant_A to 0|| block inside ||Basic:on start|| block. Change ||Variables:set plant_A to 0|| to ||Variables:set plant_B to 0||.

basic.forever(function () {
    if (fwdSensors.soilMoisture1.fwdIsMoistureLevelPastThreshold(50, fwdSensors.ThresholdDirection.Over)) {
        basic.showIcon(IconNames.Happy)
    } else {
        basic.showIcon(IconNames.Sad)
        fwdMotors.pump.fwdTimedRun(500)
        basic.pause(500)
        basic.clearScreen()
    }
})
let plant_B = 0
let plant_A = 0

Step 17

Click ||Variables:Variables|| drag and drop ||Variables:set plant_A to 0|| blocks inside ||Basic:on start|| block. Change ||Variables:set plant_A to 0|| to ||Variables:set run_pump_count to 0||

basic.forever(function () {
    if (fwdSensors.soilMoisture1.fwdIsMoistureLevelPastThreshold(50, fwdSensors.ThresholdDirection.Over)) {
        basic.showIcon(IconNames.Happy)
    } else {
        basic.showIcon(IconNames.Sad)
        fwdMotors.pump.fwdTimedRun(500)
        basic.pause(500)
        basic.clearScreen()
    }
})
let plant_B = 0
let plant_A = 0
let run_pump_count = 0

Step 18

Change ||Variables:plant_A|| value to ||Variables:5000|| and ||Variables:plant_B|| value to ||Variables:2000||.

basic.forever(function () {
    if (fwdSensors.soilMoisture1.fwdIsMoistureLevelPastThreshold(50, fwdSensors.ThresholdDirection.Over)) {
        basic.showIcon(IconNames.Happy)
    } else {
        basic.showIcon(IconNames.Sad)
        fwdMotors.pump.fwdTimedRun(500)
        basic.pause(500)
        basic.clearScreen()
    }
})
let plant_B = 2000
let plant_A = 5000
let run_pump_count = 0

Step 19

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

basic.forever(function () {
    if (fwdSensors.soilMoisture1.fwdIsMoistureLevelPastThreshold(50, fwdSensors.ThresholdDirection.Over)) {
        basic.showIcon(IconNames.Happy)
    } else {
        basic.showIcon(IconNames.Sad)
        fwdMotors.pump.fwdTimedRun(500)
        basic.pause(500)
        basic.clearScreen()
    }
})
let plant_B = 2000
let plant_A = 5000
let run_pump_count = 0
input.onButtonPressed(Button.A, function()){
}

Step 20

Right click ||Input:on button A pressed|| block and duplicate it. Change ||Input:A|| to ||Input:B||. Right click and duplicate ||Input:on button A pressed|| again. Change ||Input:A|| to ||Input:A+B||. Note: The new block will be greyed out.You should have three button input blocks.

basic.forever(function () {
    if (fwdSensors.soilMoisture1.fwdIsMoistureLevelPastThreshold(50, fwdSensors.ThresholdDirection.Over)) {
        basic.showIcon(IconNames.Happy)
    } else {
        basic.showIcon(IconNames.Sad)
        fwdMotors.pump.fwdTimedRun(500)
        basic.pause(500)
        basic.clearScreen()
    }
})
let plant_B = 2000
let plant_A = 5000
let run_pump_count = 0
input.onButtonPressed(Button.A, function()){
}
input.onButtonPressed(Button.B, function()){
}
input.onButtonPressed(Button.AB, function()){
}

Step 21

Click ||Input:Input|| drag and drop ||Input:on logo pressed|| block on workspace.

basic.forever(function () {
    if (fwdSensors.soilMoisture1.fwdIsMoistureLevelPastThreshold(50, fwdSensors.ThresholdDirection.Over)) {
        basic.showIcon(IconNames.Happy)
    } else {
        basic.showIcon(IconNames.Sad)
        fwdMotors.pump.fwdTimedRun(500)
        basic.pause(500)
        basic.clearScreen()
    }
})
let plant_B = 2000
let plant_A = 5000
let run_pump_count = 0
input.onButtonPressed(Button.A, function()){
}
input.onButtonPressed(Button.B, function()){
}
input.onButtonPressed(Button.AB, function()){
}
input.onLogoEvent(TouchButtonEvent.Pressed, function()){
}

Step 22

Click ||fwdSensors:Sensors|| drag and drop ||fwdSensors:set all ledRing LEDs to|| block inside:

  • ||input:on button A pressed||
  • ||input:on button B pressed||
  • ||input:on button A+B pressed||
basic.forever(function () {
    if (fwdSensors.soilMoisture1.fwdIsMoistureLevelPastThreshold(50, fwdSensors.ThresholdDirection.Over)) {
        basic.showIcon(IconNames.Happy)
    } else {
        basic.showIcon(IconNames.Sad)
        fwdMotors.pump.fwdTimedRun(500)
        basic.pause(500)
        basic.clearScreen()
    }
})
let plant_B = 2000
let plant_A = 5000
let run_pump_count = 0
input.onButtonPressed(Button.A, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0xff0000)
})
input.onButtonPressed(Button.B, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0xff0000)
})
input.onButtonPressed(Button.AB, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0xff0000)
})
input.onLogoEvent(TouchButtonEvent.Pressed, function(){
})

Step 23

Click ||Basic:Basic|| drag and drop ||Basic:pause (ms) 100|| block under:

  • ||fwdSensors:set all ledRing LEDs to|| inside ||input:on button A pressed|| block
  • ||fwdSensors:set all ledRing LEDs to|| inside ||input:on button B pressed|| block
basic.forever(function () {
    if (fwdSensors.soilMoisture1.fwdIsMoistureLevelPastThreshold(50, fwdSensors.ThresholdDirection.Over)) {
        basic.showIcon(IconNames.Happy)
    } else {
        basic.showIcon(IconNames.Sad)
        fwdMotors.pump.fwdTimedRun(500)
        basic.pause(500)
        basic.clearScreen()
    }
})
let plant_B = 2000
let plant_A = 5000
let run_pump_count = 0
input.onButtonPressed(Button.A, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0xff0000)
basic.pause(100)
})
input.onButtonPressed(Button.B, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0xff0000)
basic.pause(100)
})
input.onButtonPressed(Button.AB, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0xff0000)
})
input.onLogoEvent(TouchButtonEvent.Pressed, function(){
})

Step 24

Click ||fwdSensors:Sensors|| drag and drop ||fwdSensors:set all ledRing LEDs to|| block under:

  • ||basic:pause (ms) 100|| inside ||input:on button A pressed||
  • ||basic:pause (ms) 100|| inside ||input:on button B pressed||
basic.forever(function () {
    if (fwdSensors.soilMoisture1.fwdIsMoistureLevelPastThreshold(50, fwdSensors.ThresholdDirection.Over)) {
        basic.showIcon(IconNames.Happy)
    } else {
        basic.showIcon(IconNames.Sad)
        fwdMotors.pump.fwdTimedRun(500)
        basic.pause(500)
        basic.clearScreen()
    }
})
let plant_B = 2000
let plant_A = 5000
let run_pump_count = 0
input.onButtonPressed(Button.A, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0xff0000)
basic.pause(100)
fwdSensors.ledRing.fwdSetAllPixelsColour(0xff0000)
})
input.onButtonPressed(Button.B, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0xff0000)
basic.pause(100)
fwdSensors.ledRing.fwdSetAllPixelsColour(0xff0000)
})
input.onButtonPressed(Button.AB, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0xff0000)
})
input.onLogoEvent(TouchButtonEvent.Pressed, function(){
})

Step 25

Change ||fwdSensors:set all ledRing LEDs to|| under ||input:on button A pressed|| block to |purple|. Change ||fwdSensors:set all ledRing LEDs to|| under ||input:on button B pressed|| block to white. Change ||fwdSensors:set all ledRing LEDs to|| under ||input:on button A+B pressed|| block to ||control:black||.

basic.forever(function () {
    if (fwdSensors.soilMoisture1.fwdIsMoistureLevelPastThreshold(50, fwdSensors.ThresholdDirection.Over)) {
        basic.showIcon(IconNames.Happy)
    } else {
        basic.showIcon(IconNames.Sad)
        fwdMotors.pump.fwdTimedRun(500)
        basic.pause(500)
        basic.clearScreen()
    }
})
let plant_B = 2000
let plant_A = 5000
let run_pump_count = 0
input.onButtonPressed(Button.A, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0x7f00ff)
basic.pause(100)
fwdSensors.ledRing.fwdSetAllPixelsColour(0xff0000)
})
input.onButtonPressed(Button.B, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0xffffff)
basic.pause(100)
fwdSensors.ledRing.fwdSetAllPixelsColour(0xff0000)
})
input.onButtonPressed(Button.AB, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0x000000)
})
input.onLogoEvent(TouchButtonEvent.Pressed, function(){
})

Step 26

Change both LED colors of ||Input:on button A pressed|| and ||input:on button B pressed|| ||fwdSensors:set all ledRing LEDs to|| block under ||Basic:pause (100) ms|| block to ||control:black||.

basic.forever(function () {
    if (fwdSensors.soilMoisture1.fwdIsMoistureLevelPastThreshold(50, fwdSensors.ThresholdDirection.Over)) {
        basic.showIcon(IconNames.Happy)
    } else {
        basic.showIcon(IconNames.Sad)
        fwdMotors.pump.fwdTimedRun(500)
        basic.pause(500)
        basic.clearScreen()
    }
})
let plant_B = 2000
let plant_A = 5000
let run_pump_count = 0
input.onButtonPressed(Button.A, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0x7f00ff)
basic.pause(100)
fwdSensors.ledRing.fwdSetAllPixelsColour(0x000000)
})
input.onButtonPressed(Button.B, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0xffffff)
basic.pause(100)
fwdSensors.ledRing.fwdSetAllPixelsColour(0x000000)
})
input.onButtonPressed(Button.AB, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0x000000)
})
input.onLogoEvent(TouchButtonEvent.Pressed, function(){
})

Step 27

Click ||Variables:Variables|| drag and drop ||Variables:plant_A|| block to replace ||basic:100|| in ||basic:pause (ms) 100|| block inside ||Input:on button A pressed|| block.

basic.forever(function () {
    if (fwdSensors.soilMoisture1.fwdIsMoistureLevelPastThreshold(50, fwdSensors.ThresholdDirection.Over)) {
        basic.showIcon(IconNames.Happy)
    } else {
        basic.showIcon(IconNames.Sad)
        fwdMotors.pump.fwdTimedRun(500)
        basic.pause(500)
        basic.clearScreen()
    }
})
let plant_B = 2000
let plant_A = 5000
let run_pump_count = 0
input.onButtonPressed(Button.A, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0x7f00ff)
basic.pause(plant_A)
fwdSensors.ledRing.fwdSetAllPixelsColour(0x000000)
})
input.onButtonPressed(Button.B, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0xffffff)
basic.pause(100)
fwdSensors.ledRing.fwdSetAllPixelsColour(0x000000)
})
input.onButtonPressed(Button.AB, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0x000000)
})
input.onLogoEvent(TouchButtonEvent.Pressed, function(){
})

Step 28

Click ||Variables:Variables|| drag and drop ||Variables:plant_B|| block to replace ||basic:100|| in ||basic:pause (ms) 100|| block under ||input:on button B pressed|| block.

basic.forever(function () {
    if (fwdSensors.soilMoisture1.fwdIsMoistureLevelPastThreshold(50, fwdSensors.ThresholdDirection.Over)) {
        basic.showIcon(IconNames.Happy)
    } else {
        basic.showIcon(IconNames.Sad)
        fwdMotors.pump.fwdTimedRun(500)
        basic.pause(500)
        basic.clearScreen()
    }
})
let plant_B = 2000
let plant_A = 5000
let run_pump_count = 0
input.onButtonPressed(Button.A, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0x7f00ff)
basic.pause(plant_A)
fwdSensors.ledRing.fwdSetAllPixelsColour(0x000000)
})
input.onButtonPressed(Button.B, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0xffffff)
basic.pause(plant_B)
fwdSensors.ledRing.fwdSetAllPixelsColour(0x000000)
})
input.onButtonPressed(Button.AB, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0x000000)
})
input.onLogoEvent(TouchButtonEvent.Pressed, function(){
})

Step 29

Click ||Variables:Variables|| to make two new ||Variables:Variables||.

  • ||Variables:timer start||
  • ||Variables:timer stop||

Step 30

Click ||Variables:Variables|| drag and drop ||Variables:set timer stop to 0|| block under ||Logic:if|| ||fwdSensors:soilMoisture1 level is over 50 %|| ||Logic:then|| block.

basic.forever(function () {
    if (fwdSensors.soilMoisture1.fwdIsMoistureLevelPastThreshold(50, fwdSensors.ThresholdDirection.Over)) {
        timer_stop = 0
        basic.showIcon(IconNames.Happy)
    } else {
        basic.showIcon(IconNames.Sad)
        fwdMotors.pump.fwdTimedRun(500)
        basic.pause(500)
        basic.clearScreen()
    }
})
let plant_B = 2000
let plant_A = 5000
let run_pump_count = 0
input.onButtonPressed(Button.A, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0x7f00ff)
basic.pause(plant_A)
fwdSensors.ledRing.fwdSetAllPixelsColour(0x000000)
})
input.onButtonPressed(Button.B, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0xffffff)
basic.pause(plant_B)
fwdSensors.ledRing.fwdSetAllPixelsColour(0x000000)
})
input.onButtonPressed(Button.AB, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0x000000)
})
input.onLogoEvent(TouchButtonEvent.Pressed, function(){
})

Step 31

Click ||Variables:Variables|| drag and drop ||Variables:set timer start to 0|| block under ||fwdMotors:run pump for 500|| block.

basic.forever(function () {
    if (fwdSensors.soilMoisture1.fwdIsMoistureLevelPastThreshold(50, fwdSensors.ThresholdDirection.Over)) {
        timer_stop = 0
        basic.showIcon(IconNames.Happy)
    } else {
        basic.showIcon(IconNames.Sad)
        fwdMotors.pump.fwdTimedRun(500)
        timer_start = 0
        basic.pause(500)
        basic.clearScreen()
    }
})
let plant_B = 2000
let plant_A = 5000
let run_pump_count = 0
input.onButtonPressed(Button.A, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0x7f00ff)
basic.pause(plant_A)
fwdSensors.ledRing.fwdSetAllPixelsColour(0x000000)
})
input.onButtonPressed(Button.B, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0xffffff)
basic.pause(plant_B)
fwdSensors.ledRing.fwdSetAllPixelsColour(0x000000)
})
input.onButtonPressed(Button.AB, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0x000000)
})
input.onLogoEvent(TouchButtonEvent.Pressed, function(){
})

Step 32

Click ||Input:Input|| then ||Input:more|| drag and drop ||input:running time (ms)|| block to replace ||0|| in both:

  • ||Variables:timer start|| block
  • ||Variables:timer stop|| block
basic.forever(function () {
    if (fwdSensors.soilMoisture1.fwdIsMoistureLevelPastThreshold(50, fwdSensors.ThresholdDirection.Over)) {
        timer_stop = input.runningTime()
        basic.showIcon(IconNames.Happy)
    } else {
        basic.showIcon(IconNames.Sad)
        fwdMotors.pump.fwdTimedRun(500)
        timer_start = input.runningTime()
        basic.pause(500)
        basic.clearScreen()
    }
})
let plant_B = 2000
let plant_A = 5000
let run_pump_count = 0
input.onButtonPressed(Button.A, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0x7f00ff)
basic.pause(plant_A)
fwdSensors.ledRing.fwdSetAllPixelsColour(0x000000)
})
input.onButtonPressed(Button.B, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0xffffff)
basic.pause(plant_B)
fwdSensors.ledRing.fwdSetAllPixelsColour(0x000000)
})
input.onButtonPressed(Button.AB, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0x000000)
})
input.onLogoEvent(TouchButtonEvent.Pressed, function(){
)}

Step 33

Click ||Variables:Variables|| drag and drop ||Variables:change run_pump_count by 1|| block inside ||Logic:else|| condition under ||Basic:pause (ms) 500|| block.

basic.forever(function () {
    if (fwdSensors.soilMoisture1.fwdIsMoistureLevelPastThreshold(50, fwdSensors.ThresholdDirection.Over)) {
        timer_stop = input.runningTime()
        basic.showIcon(IconNames.Happy)
    } else {
        basic.showIcon(IconNames.Sad)
        fwdMotors.pump.fwdTimedRun(500)
        timer_start = input.runningTime()
        basic.pause(500)
        run_pump_count += 1
        basic.clearScreen()
    }
})
let plant_B = 2000
let plant_A = 5000
let run_pump_count = 0
input.onButtonPressed(Button.A, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0x7f00ff)
basic.pause(plant_A)
fwdSensors.ledRing.fwdSetAllPixelsColour(0x000000)
})
input.onButtonPressed(Button.B, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0xffffff)
basic.pause(plant_B)
fwdSensors.ledRing.fwdSetAllPixelsColour(0x000000)
})
input.onButtonPressed(Button.AB, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0x000000)
})
input.onLogoEvent(TouchButtonEvent.Pressed, function(){
)}

Step 34

Click ||Basic:Basic|| drag and drop ||Basic:show number|| block inside ||Input:on logo pressed|| block.

basic.forever(function () {
    if (fwdSensors.soilMoisture1.fwdIsMoistureLevelPastThreshold(50, fwdSensors.ThresholdDirection.Over)) {
        timer_stop = input.runningTime()
        basic.showIcon(IconNames.Happy)
    } else {
        basic.showIcon(IconNames.Sad)
        fwdMotors.pump.fwdTimedRun(500)
        timer_start = input.runningTime()
        basic.pause(500)
        run_pump_count += 1
        basic.clearScreen()
    }
})
let plant_B = 2000
let plant_A = 5000
let run_pump_count = 0
input.onButtonPressed(Button.A, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0x7f00ff)
basic.pause(plant_A)
fwdSensors.ledRing.fwdSetAllPixelsColour(0x000000)
})
input.onButtonPressed(Button.B, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0xffffff)
basic.pause(plant_B)
fwdSensors.ledRing.fwdSetAllPixelsColour(0x000000)
})
input.onButtonPressed(Button.AB, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0x000000)
})
input.onLogoEvent(TouchButtonEvent.Pressed, function(){
basic.showNumber(0)
)}

Step 35

Click ||Math:Math|| drag and drop ||Math:Division|| block to replace ||Basic:0|| in ||basic:show number|| block under ||input:on logo pressed|| block.

basic.forever(function () {
    if (fwdSensors.soilMoisture1.fwdIsMoistureLevelPastThreshold(50, fwdSensors.ThresholdDirection.Over)) {
        timer_stop = input.runningTime()
        basic.showIcon(IconNames.Happy)
    } else {
        basic.showIcon(IconNames.Sad)
        fwdMotors.pump.fwdTimedRun(500)
        timer_start = input.runningTime()
        basic.pause(500)
        run_pump_count += 1
        basic.clearScreen()
    }
})
let plant_B = 2000
let plant_A = 5000
let run_pump_count = 0
input.onButtonPressed(Button.A, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0x7f00ff)
basic.pause(plant_A)
fwdSensors.ledRing.fwdSetAllPixelsColour(0x000000)
})
input.onButtonPressed(Button.B, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0xffffff)
basic.pause(plant_B)
fwdSensors.ledRing.fwdSetAllPixelsColour(0x000000)
})
input.onButtonPressed(Button.AB, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0x000000)
})
input.onLogoEvent(TouchButtonEvent.Pressed, function(){
basic.showNumber(0/0)
})

Step 36

Click ||Math:Math|| drag and drop ||Math:Substraction|| block to replace ||Math:0|| on the left side of ||Math:Division|| block under ||input:on logo pressed|| block.

basic.forever(function () {
    if (fwdSensors.soilMoisture1.fwdIsMoistureLevelPastThreshold(50, fwdSensors.ThresholdDirection.Over)) {
        timer_stop = input.runningTime()
        basic.showIcon(IconNames.Happy)
    } else {
        basic.showIcon(IconNames.Sad)
        fwdMotors.pump.fwdTimedRun(500)
        timer_start = input.runningTime()
        basic.pause(500)
        run_pump_count += 1
        basic.clearScreen()
    }
})
let plant_B = 2000
let plant_A = 5000
let run_pump_count = 0
input.onButtonPressed(Button.A, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0x7f00ff)
basic.pause(plant_A)
fwdSensors.ledRing.fwdSetAllPixelsColour(0x000000)
})
input.onButtonPressed(Button.B, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0xffffff)
basic.pause(plant_B)
fwdSensors.ledRing.fwdSetAllPixelsColour(0x000000)
})
input.onButtonPressed(Button.AB, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0x000000)
})
input.onLogoEvent(TouchButtonEvent.Pressed, function(){
basic.showNumber(0-0/0)
})

Step 37

Click ||Variables:Variables|| drag and drop ||Variables:timer_start|| block and ||Variables:timer_stop|| block to replace ||Math:0 - 0|| on the left side of ||Math:Division|| block under ||input:on logo pressed|| block. Change the ||Math:Divisor|| value to ||Math:60000||.

basic.forever(function () {
    if (fwdSensors.soilMoisture1.fwdIsMoistureLevelPastThreshold(50, fwdSensors.ThresholdDirection.Over)) {
        timer_stop = input.runningTime()
        basic.showIcon(IconNames.Happy)
    } else {
        basic.showIcon(IconNames.Sad)
        fwdMotors.pump.fwdTimedRun(500)
        timer_start = input.runningTime()
        basic.pause(500)
        run_pump_count += 1
        basic.clearScreen()
    }
})
let plant_B = 2000
let plant_A = 5000
let run_pump_count = 0
input.onButtonPressed(Button.A, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0x7f00ff)
basic.pause(plant_A)
fwdSensors.ledRing.fwdSetAllPixelsColour(0x000000)
})
input.onButtonPressed(Button.B, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0xffffff)
basic.pause(plant_B)
fwdSensors.ledRing.fwdSetAllPixelsColour(0x000000)
})
input.onButtonPressed(Button.AB, function(){
fwdSensors.ledRing.fwdSetAllPixelsColour(0x000000)
})
input.onLogoEvent(TouchButtonEvent.Pressed, function(){
basic.showNumber(timer_stop-timer_start/60000)
})

Step 38 @showhint

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

Step 39 @showdialog

Congratulations on completing your Smart Farming with Hydroponics & Grow Lights Project!

Step 40 @showdialog

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