Draw the block diagram/sketch/circuit of your automation system.
The block diagram should show: (1) Input section - sensor (such as PIR motion sensor or moisture sensor) connected to analog or digital input pins of the microcontroller. (2) Processing section - microcontroller (Arduino Uno) with power supply, USB connection for programming, and the programme that processes sensor input. (3) Output section - output device (LED, buzzer, motor, or relay) connected to digital output pins of the microcontroller. The diagram should clearly show the flow from Input (sensor) → Process (microcontroller) → Output (actuator), with proper connections and labels for each component and pin.
Explanation
The chapter shows Figure 4.9 illustrating how the microcontroller handles both input and output to make decisions. Students should create a similar block diagram showing the Input-Process-Output cycle for their specific automation system, including all major components and their interconnections.