FOUR DIGITS PASSWORD BASED COMBINATION LOCK

An electronic lock allows activation of an electric appliance only on entering the correct password. Here we present such an electronic locking system in which a PIC16F84A microcontroller plays the role of the processing unit. The MCU is interfaced with… Continue reading

Build your own Calculator using PIC16F887, 16x2LCD and 4×4 keypad

Calculator Circuit

This is a simple calculator project.  You can use it to do your simple calculations such as addition, subtraction, multiplication and division. The hardware design is very simple: just interface your 16x2LCD and 4×4 keypad to the microcontroller.

All… Continue reading

8051 base digital clock and calender using DS1302

This is a simple digital clock with calendar project using stc90c52rc micro-controller and 16×2 LCD display.
The timing is based on the real time clock chip DS1302.

Components lists

1.         STC90C52RC

2.… Continue reading

LM35 temperature Datalogger

Temperature datalogger is a good choice of project for beginners
who just stepped into the world of microcontrollers because it provides
an opportunity to learn using sensors to measure the real world signals
that are analog in nature.LM35 is a… Continue reading 

PIC16F887 Digital Clock with Calendar

digital clock with calendar

This is a simple digital clock with calendar project using Microchip’s
PIC16F887 microcontroller and 16x2 LCD display.
The project will display the current date and time on the LCD.
The software used were MPLAB IDE and… Continue reading 

Finger print based security system

Project name: Finger print based security system

These project utilize fingerprint recognition technology to allow access to only those whose fingerprints you choose. It contains all the necessary electronics to allow you to store, delete, and verify fingerprints with just… Continue reading

Control Appliances using SMS

The aim of this project, “Control Appliances via SMS using sim300cz gsm modem and ATMega16”, is to use GSM technology to automate and remotely control various household appliances. This project will aid student and developers to make use of… Continue reading

Product Review: GSM Controller Board for Industrial Applications

If you are looking for a head start in GSM industrial control, then look no further. This GSM controller board features Siemens TC35 GSM module and STC 8951 series microcontrollers. The board is well documented and comes with sample codes… Continue reading

Digital StopWatch Using Microcontroller

A microcontroller base stopwatch is use to determine the time interval between start and stop of any action or activity for example in sport such as racing and can also be applicable in so many other areas.  The three… Continue reading

4X4 Keypad interfacing

In this tutorial, the interfacing of 4×4 (16 buttons) keypad to ATMega 16 is explored. The keypad is organized into 4 rows and 4 columns utilizing only 8 i/o pins instead of 16.The rows are connected to PD0 through PD3… Continue reading