Rain Alarm & Touch Alarm
This project is very useful for beginner because it is so simple & has very small number of components. It is very useful for those students who want to learn many more about NAND Gates. The heart of the circuit is CD 4011. You can use CD 4093. This IC has four NAND Gates. Every NAND Gate has two input and one output.
This project is very different because it has so many utility. 1. Rain Alarm 2. Touch Alarm 3. Theft Alarm |