ICT9 - Final Knowledge Check

1. Which sensor helps monitor water levels in soil for automated irrigation?

• 1. Temperature sensor

• 1. Ultrasonic sensor

• 1. Soil moisture sensor

• Pressure sensor

1. What component is used to manually trigger an action in an Arduino project?

• 1. Potentiometer

• 1. Pushbutton

• 1. LCD display

• LED

1. What does a potentiometer primarily control?

• 1. Voltage input

• 1. Light brightness

• 1. Resistance level

• Signal frequency

1. Which Arduino component is responsible for displaying textual data in an agricultural project?

• 1. LED

• 1. LCD I2C

• 1. Pushbutton

• Serial port

1. What is one benefit of using LCD I2C over a standard LCD?

• 1. It uses more wires

• 1. It is less accurate

• 1. It simplifies wiring by using fewer pins

• It cannot display numbers

1. Which Arduino function is used to detect the moisture level from the soil sensor?

• 1. digitalRead()

• 1. analogRead()

• 1. lcd.print()

• delay()

1. Why is an LED often used in Arduino agricultural projects?

• 1. To measure moisture levels

• 1. To power components

• 1. As a visual alert indicator

• For data storage

1. What are the SDA and SCL pins used for?

• 1. Voltage input

• 1. Digital output

• 1. I2C communication

• Serial transmission

1. Which part of the Arduino Uno is known as its "brain"?

• 1. USB connector

• 1. ATmega328P microcontroller

• 1. Voltage regulator

• Reset button
  

1. Sustainable farming solutions using Arduino often result in:

• 1. Increased waste

• 1. Automated crop monitoring

• 1. Manual watering only

• More fossil fuel usage