Circuit Projects

The project is proven to be opened by using Morse code to open doors operated by intercoms.

In order to apply Morse codes, electric strikes are entered for a few seconds just like dialing proper sequence of short and long signals. The microcontroller recognizes the pulses (tone melody)…

The device is known as Turn Photo which allows capturing several photos of the same product from different angles by turning it in 360 degrees.

The device is built on the PIC16F628A microcontroller along with one stepper motor, 2 opto-couplers, ULN2803A IC transistor array and USB-Serial…

Making a flying saucer sounds like one very interesting idea. And it will also look good in your lawn. See how to make your own one.

A couple of plastic trays is what is needed to make the body. Two trays are attached to one another by means of bolts, nuts, metal washers and rubber…

A homemade voltage monitor for car’s battery as well as its charging system is presented by this project which can be applied to modern automobiles.

The faulty charging system is one of the most common reasons for a car battery failure where the battery does not get the proper charging…

Bored of making the same old circuits again and again? Want to try out something cool? Then just follow the article and find out how to build a USB HID keyboard device.

The keyboard is used to key in a password everytime it is plugged. The password keyed in is stored in the EEPROM….

The article will guide any electronics beginner on how an ATtiny24/44/84 can be constructed. This is quite a simple circuit and the components involved are also limited in number.

The circuit is an all-in-one module for Atmel ATtiny24/44/84 8-bit microcontrollers. Building a…

Are you a beginner and want make something out of interest? Well, this is one project that would help you grasp the basics of electronics. Just follow the instructions given and learn how to make a speed detection device using arduino that can be used with Mac, Windows and Android.

An…

The device features a low-cost alternative to the problem of testing capacitors since ready-made capacitance meters are too expensive.

Normally, a typical multimeter is designed to measure parameters such as voltage, current and resistance over a wide range of values. This analog…

The article throws light on how a dual channel PC/USB oscilloscope can be constructed using an STM32 microcontroller. Read on to know more.

The hardware specifications of this project are listed below.

• STM32F103 MCU in LQFP48 package
• Single sided PCB
• UART Bootloader

The technical…

Ever been in a situation where you had tried to figure out if your batteries had charge or not? Did you ever want to find out the capacity of a battery? This article would help you to design a circuit that would measure the capacity of a battery.

The purpose of this project is to design…