Laser Security System

Here is a simple and cheap Laser Based Security System, which costs below Rs. 100. It is a simple circuit using LM358 OP-AMP and LM555 Timer. This circuit is triggered when the Laser beam falls on the LDR interrupts, which sounds the buzzer connected to it. This can be used to protect your valuable items, money, room etc.. By using different mirror arrangements you can form different security systems. This can also be used to protect more than one objects by suitably arranging...

September 16, 2012By Abhay BajpaiElectronics, Hobby Circuits, Projects555, Laser, Op-Amp, Security, System37 CommentsRead more...

Cell Phone Controlled Land Rover Using Logic Gates

What's Science for a small child ?At that age, no one of us is aware about the vast branches in science ,yet we are very curious to know.There will be lots of Why's and How's in our mind which makes the elders irritated.By seeing a toy car,we always get wondered. Without knowing any robotics or electronics inside we just want to make our own toy car with clay and blocks.So its not wrong to say that every child has scientist inside...

September 2, 2012By Manoj ShenoyElectronics, Hobby Circuits, Projectscircuits, electronics, Motor41 CommentsRead more...

Digital Thermometer using PIC Microcontroller and LM35 Temperature Sensor

Basics

A Digital Thermometer can be easily constructed using a PIC Microcontroller and LM35 Temperature Sensor. LM35 series is a low cost and precision Integrated Circuit Temperature Sensor whose output voltage is proportional to Centigrade temperature scale. Thus LM35 has an advantage over other temperature sensors calibrated in Kelvin as the users don't require subtraction of large constant voltage to obtain the required Centigrade temperature. It doesn't requires any external calibration. It is produced by National Semiconductor and can operate over a -55 °C to 150...

June 1, 2012By Ligo GeorgeEmbedded, PIC Microcontroller, ProjectsLM35, Microcontroller, PIC, Projects, Thermometer116 CommentsRead more...

Digital Clock using PIC Microcontroller and DS1307 RTC

A Digital Clock can be made easily by using PIC Microcontroller, DS1307 and a 16x2 LCD. I have already posted about Interfacing DS1307 RTC with PIC Microcontroller. The DS1307 RTC can work either in 24-hour mode or 12-hour mode with AM/PM indicator. It automatically adjusts for months fewer than 31 days including leap year compensation up to year 2100. DS1307 comes with built-in power sensing circuit which senses power failures and...

May 31, 2012By Ligo GeorgeEmbedded, PIC Microcontroller, ProjectsClock, Digital, DS1307, Embedded, Microcontroller, PIC, RTC325 CommentsRead more...

Voltmeter and Ammeter using PIC Microcontroller

Voltmeter and Ammeter can be easily made using PIC Microcontroller having ADC (Analog to Digital Converter). I am using PIC16F877A and the result is displayed on an LCD Display. PIC16F877A is enough if you do this project only for testing purposes. I suggest to use PIC with low pin numbers and multiplexed 7 segment display if you wish to use this as your measuring instrument.

Prerequisite

If you don't know the basis of PIC ADC and LCD Interfacing please read the following...

May 20, 2012By Ligo GeorgeEmbedded, PIC Microcontroller, ProjectsEmbedded, Microcontroller, MikroC, PIC, Proteus292 CommentsRead more...

Water Level Indicator and Controller using PIC Microcontroller

Here is a simple, versatile project which indicates the level of water and automatically controls it by using PIC Microcontroller. The Water Level Sensing Section senses the level of water in the tank and sends it (wireless) to the Receiver Section. Receiver Section is connected to the Controlling Section, which process the received information and produces visual, sound indications and controls the operation of the motor whenever required. The project is divide into 4 sections.

1. Power Supply Section

Power Supply section provides required supply for Receiver...

May 11, 2012By Ligo GeorgeEmbedded, PIC Microcontroller, ProjectsMicrocontroller, MikroC, PIC, Projects, Proteus269 CommentsRead more...

USB PIC Programmer : PICKit2

Microchip's PICKit2 is much more comfortable,reliable and powerful than the other programmers that we can find all over internet. It is a USB based ICSP (In Circuit Serial Programming) programmer. Since it is a first release, Microchip published all the resources of PICKit2 public, which includes hardware schematics and all source code of softwares used. Through this any one can add features, fix bugs and modify source code. Documents and other supporting files of PICKit2 are available at

May 8, 2012By Ligo GeorgeEmbedded, Featured, PIC Microcontroller, ProjectsICSP, Microcontroller, PIC, PICKit2, Programmer, USB, ZIF176 CommentsRead more...