Question 3 of 23intermediate🔧 ApplyShort Answer3 marks

Complete the details for water sprinkler and any device of your choice. (Automatic Water Sprinkler System - Input, Process, Output)

Correct Answer

Automatic Water Sprinkler System:

Input: A moisture sensor detects the moisture level in the soil. When the soil becomes dry, the sensor sends a signal to the microcontroller.

Process: The microcontroller receives the signal from the moisture sensor and decides whether the soil needs water. It compares the moisture reading with the threshold value and instructs the water pump to turn on or off.

Output: The water pump turns on and waters the plants. When the soil has enough moisture, the system turns the pump off automatically.

Exercise: Activity 5: Exploring automation cycle | Q: 1 | (Chapter: Page 18)
For More Understanding

Explanation

The chapter explains the automation cycle with three key steps: Input (Sensing) where sensors detect changes, Processing (Decision making) where a microcontroller analyses input and decides action, and Output (Action/Execution) where the system carries out the action. The example of automatic garden irrigation system with moisture sensor is described on Page 2.

Solution Steps

  1. The Input stage involves a moisture sensor detecting soil dryness and signaling the microcontroller.

  2. The Process stage involves the microcontroller comparing the moisture reading with a threshold value to decide the action.

  3. The Output stage involves the water pump activating to water plants and deactivating automatically when soil moisture is sufficient.