Rain Detection System
A Rain Detection System using Arduino, a rain sensor, and a buzzer that sounds an alert when water droplets or rain are detected.
Description
The Rain Detection System is designed to detect rain using an Arduino and a rain sensor. When the rain sensor detects water droplets, it sends a signal to the Arduino. The Arduino processes this signal and activates the buzzer to produce a sound alert, indicating that rain has been detected. This project is useful for weather monitoring, automated window control, and irrigation systems.
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An AND gate can be built using BC547 NPN transistors, a common general-purpose transistor used in digital circuits.
The circuit represents both the inputs A & B for the AND gate and Output, Q, which also has a +5V supply to the collector of the first transistor, which is connected in series to the second transistor, and an LED is connected to the emitter terminal of the second transistor. The inputs A & B are connected to the base terminal of Transistor 1 and Transistor 2, respectively, and the output Q goes to the positive terminal LED.
₹190.00 -
An OR gate using transistors is a basic logic circuit built using NPN transistors that performs the logical OR function. It gives a high output when at least one input is high. This is a fundamental building block in digital electronics and can be implemented using discrete components like transistors and resistors.
₹145.00













