Process

 I wanted to make a lighting device that is meant to save energy. In that regard, the LED can only be activated when the environment is below certain brightness. To achieve that, I used a photocell sensor to detect the brightness and a button to turn the LED on and off. When the room dims, we can manually push the button to turn on the LED. If we activate the button beforehand, when the environment dims, the LED will automatically turn on. Conversely, while the button is activated, when the environment is getting bright, the LED will automatically turn off.