Write about the Input, Process and Output of your project.
For an automatic plant watering system, the Input begins with the moisture sensor. It detects the water content in soil and sends electrical signals to the microcontroller. The sensor provides analog values representing moisture levels.
The Process involves the microcontroller (Arduino Uno) receiving the sensor input. It compares the moisture reading with the programmed threshold value and decides whether the soil needs water. It sends appropriate signals to the output device based on this decision.
The Output is managed by a water pump or solenoid valve. This device turns on to water the plants when soil is dry, and turns off automatically when adequate moisture is achieved.
Explanation
The chapter explains that all automation processes have an input (sensing), process (decision making), and output (action/execution). Students should identify these three components for their specific project, describing what sensor provides input, how the microcontroller processes information, and what output device performs the action.
Solution Steps
Input: Moisture sensor detects soil water content and sends signals to microcontroller.
Process: Microcontroller compares moisture reading with threshold to decide action.
Output: Water pump or valve activates/deactivates based on soil moisture needs.