advancedagriculture.md

Smart Farming with Automated Watering

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 Smart Farming with Automated Watering Coding Tutorial

Step 2 @showdialog

In this coding tutorial we will use the moisture sensor to measure the moisture level of the plants soil. Then, use the water pump to water the plant when the moisture level is low. Use the LED light to act as a grow light for the plant.

Step 3 @showdialog

Turn on the Climate Action Kit board.

Step 4 @showhint

Click three dots besides |Download| button, and click on Connect Device. Next, 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 @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.

Step 7

Click ||fwdSensors:Sensors|| drag and drop ||fwdSensors:set all ledRing LEDs to|| block inside ||basic:forever|| loop.

basic.forever(function () {
    fwdSensors.ledRing.fwdSetAllPixelsColour(0xff0000)
    )}

Step 8

Click ||logic: Logic|| drag and drop ||logic:If then Else|| block under ||fwdSensors:set all ledRing LEDs to|| block.

basic.forever(function () {
    fwdSensors.ledRing.fwdSetAllPixelsColour(0xff0000)
    if (true) {
          }
    else {
        }
        )}

Step 9

Click ||fwdSensors:Sensors|| drag and drop ||fwdSensors:is soilMoisture1 moisture level over 5%|| to replace ||logic:true|| condition of ||logic:if then else|| block. Change ||fwdSensors:5% to 50%||.

basic.forever(function () {
    fwdSensors.ledRing.fwdSetAllPixelsColour(0xff0000)
    if (fwdSensors.soilMoisture1.fwdIsMoistureLevelPastThreshold(50, fwdSensors.ThresholdDirection.Over)) {
          }
    else {
        }
        )}

Step 10

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

basic.forever(function () {
    fwdSensors.ledRing.fwdSetAllPixelsColour(0xff0000)
    if (fwdSensors.soilMoisture1.fwdIsMoistureLevelPastThreshold(50, fwdSensors.ThresholdDirection.Over)) {
          basic.showIcon(IconNames.Happy)}
    else {
        }
        )}

Step 11

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

basic.forever(function () {
    fwdSensors.ledRing.fwdSetAllPixelsColour(0xff0000)
    if (fwdSensors.soilMoisture1.fwdIsMoistureLevelPastThreshold(50, fwdSensors.ThresholdDirection.Over)) {
          basic.showIcon(IconNames.Happy)}
    else {
        basic.showIcon(IconNames.Sad)}
        )}

Step 12

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

basic.forever(function () {
    fwdSensors.ledRing.fwdSetAllPixelsColour(0xff0000)
    if (fwdSensors.soilMoisture1.fwdIsMoistureLevelPastThreshold(50, fwdSensors.ThresholdDirection.Over)) {
        basic.showIcon(IconNames.Happy)
        } else {
        basic.showIcon(IconNames.Sad)
        fwdMotors.pump.fwdTimedRun(100)
        }
})

Step 13

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 () {
    fwdSensors.ledRing.fwdSetAllPixelsColour(0xff0000)
    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 ||basic:basic|| drag and drop ||basic:clear screen|| block under ||basic:pause (ms) 500|| block.

basic.forever(function () {
    fwdSensors.ledRing.fwdSetAllPixelsColour(0xff0000)
    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 @showhint

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

Step 16 @showdialog

Congratulations on completing your Smart Farming with Automated Watering Project!

Step 17 @showdialog

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