What automation system do you want to make? What is the process?
An automation system such as an automatic plant watering system can be made. The process involves:
(1) Connecting a moisture sensor to the microcontroller's analog pins to detect soil moisture levels.
(2) Writing a programme that reads sensor values and compares them with a threshold.
(3) Connecting a water pump or solenoid valve to a digital pin through a relay.
(4) Programming the microcontroller to turn on the pump when soil is dry and turn it off when moisture reaches the desired level.
(5) Testing the system and adjusting threshold values as needed.
Explanation
The chapter provides examples of automation systems students can make: automatic plant watering system, automatic obstacle detecting system, automatic fire alarm system, automatic gate opening system, automatic theft detection alarm system, and smart fan. Students should describe their chosen system and the step-by-step process of building it.
Solution Steps
An automation system such as an automatic plant watering system can be made.
Connecting a moisture sensor to the microcontroller's analog pins to detect soil moisture levels.
Writing a programme that reads sensor values and compares them with a threshold.
Connecting a water pump or solenoid valve to a digital pin through a relay.
Programming the microcontroller to turn on the pump when soil is dry and turn it off when moisture reaches the desired level.
Testing the system and adjusting threshold values as needed.