WorksheetsSoil Moisture Sensor and Microcontroller Worksheet
Total questions: 10
Worksheet time: 5mins
What does a soil moisture sensor measure?
Temperature of soil
Water content in soil
Light intensity
Voltage of battery
Which component is used to turn the water pump ON and OFF?
LED
Motor driver
Ultrasonic sensor
LDR
Why do we use a motor driver with a water pump?
To measure soil moisture
To safely control the high current needed by the pump
To light up the pump
To charge the battery
What happens when the soil is dry according to the sensor reading?
Water pump turns ON
Water pump turns OFF
LED blinks
Motor stops
What type of signal does the soil moisture sensor give to the microcontroller?
Digital
Analog
PWM
I2C
Which pin of the microcontroller is typically used to read soil moisture sensor output?
Analog input pin
Digital output pin
PWM pin
Ground pin
What programming logic is used to turn the water pump ON or OFF based on soil moisture?
While loop
If-else statement
Switch-case statement
For loop
Which of the following is an application of integrating soil moisture sensor with water pump?
Automatic irrigation system
LED lighting system
Temperature control
Line following robot
Which of the following is an application of a water pump?
Irrigation in fields
Measuring soil moisture
Controlling LEDs
Temperature sensing
What happens if the soil is wet according to the sensor?
Water pump turns OFF
Water pump turns ON
LED turns ON
Motor driver stops working
