Page 36 - RoboGenius Pro C7

STEP - 9 Connect the Negative Terminal of the Water Pump to GND on the Arduino (through
a resistor).

Block based programming:

STEP - 10 Click the Code button to open the code editor.

STEP - 11 Click on the EDIT MODE dropdown button and select Blocks option.

STEP - 12 Click on the Create variable button in the Variables section and name it
soil_moisture.

STEP - 13 Drag and place the set soil_moisture to block from the Variables section into the
editor window.

STEP - 14 Drag and place the read analog pin block from the Input section inside the set
soil_moisture to block and set it to pin A0.

STEP - 15 Drag and place the print to serial monitor block from the Output section and place
soil_moisture inside it to print the sensor’s value to the serial monitor.

STEP - 16 Drag and place the if then else block from the Control section. Place the comparison
block from the Math section and set it to <. Compare soil_moisture with 100.

STEP - 17 Inside the if (soil_moisture < 100) block, drag and place from the Output section:

set pin 8 to HIGH (to turn ON the motor and water the plant).

set pin 7 to HIGH (to turn ON the Red LED, indicating dry soil).

set pin 6 to LOW (to turn OFF the Green LED).

STEP - 18 Inside the else block, drag and place from the Output section:

set pin 8 to LOW (to turn OFF the motor).
set pin 7 to LOW (to turn OFF the Red LED).

set pin 6 to HIGH (to turn ON the Green LED, indicating wet soil).

RoboGenius Pro - VII
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