Free Project Circuits

This circuit will open and close the curtain of your home and office just by pushing a switch. So with the help of this unique

A power amplifier circuit is the one with minimum output impedance, used to drive loads like a speaker, which require high power at low impedance.

This circuit will help you to guard your precious documents as well as jewellery from intruders or theft. All you need is just to place

Here is a simple project more useful in watering plants automatically without any human interference. We may call it as Automatic plant irrigation system. We

The battery is charged with small amount of AC voltage or DC voltage. So if you want to charge your battery with AC source then

In olden days while we were using analog signal for communication, the jamming circuit was very easy just by producing the high frequency noise signals,

In this session we will see how to interface 16×2 LCD to PIC18F4550 microcontroller which is of family PIC18F. You can get information of 16×2

A power amplifier circuit using MOSFET has been designed to produce 100W output to drive a load of about 8 Ohms. The power amplifier circuit

Password Based Door Lock System using 8051 Microcontroller is a simple project where a secure password will act as a door unlocking system. Traditional lock

CD4027 is a JK flip flop that is generally used for data storing. Two similar or equal JK flip flops are contained in the IC.