ACGCET NEWS

VOCALIZER FOR DEAF AND DUMB                                              -THIRAN ver.2K14                   There is always an urgency for developing technology to cope up with the advancing world meanwhile helping our own kind. In order to help the deaf and dump people in their needs we have created this simple circuit. COMPONENTS:  1. NXP89V51RD2 IC  2. ISD1932SYI IC  3. 16*2 LCD display  4. Control buttons  5. Regulated power supply OPERATION: Circuit connection                                                     The circuit connections are given as per the circuit diagram.  With the gift given by our tech...

  Components required : 1.5 sensors(LDR ) 2.Wooden stick 3.Connecting wires 4.Adapter 5.Black tape 6.Screws 7.DC jack 8.In case of 9v battery snap is required 9. buzzers 10.Batteries (5/9 V) Procedure 1.Take a wooden stick of 80-90 cm and fix 3 sensors at the end  of the  stick . 2. Fix  the remaining 2  sensors on the body stick for left and right detection. 3. Connect all the positive terminal of sensors together( same  for negative terminal ) so that only two wires can connect to battery. 4.Output terminals of 3 sensors  which are fixed at top are connected altogether  to the positive terminal of buzzer 1 and  the negative terminals should be connected  to the  negative terminal of battery. 5. Same connection is repeated for the remaining two sensors to buzzer 2. 5. Supply can be given  using battery or adapter. You can vary your sensor's potentiometer according to your requirement. Now your dete...

Automatic Plant Irrigation system (THIRAN ver.2K14/Phase-II)         In present days agriculture farmers are facing major problem in watering their crops.  This automatic irrigation system senses the moisture content of the soil and automatically switches the pump when the power is on. MAIN COMPONENTS :          1.7404 HEX INVERTER (operating voltage range is 4.4v to 5.5v),          2. Two 555 TIMER          3. Electronic valve.          4. Probes. OPERATION :     The soil resistance is sensed by HEX  INVERTER  and makes the first monostable multivibrator to activate at pin2, its output at pin3 is given as input to second astable multivibrator and generated output makes the relay inturn to operate the electrical valve. So when the soil cond...

Normally Micro solderimg iron works on 12 V supply .We can make it with simple dry cell batteries available in the market.It is best suited for emergency soldering .(Say your project deadline is tomorrow !! And you are devoid of the conventional soldering equipments ) It is useful for crisis management! Apparatus required:  1.A wooden piece 2.4 cell Battery holder 3.SPST Switch 4.Connecting wires 5.Micro soldering iron (low Watt) 6.Battery 1.5 V -4 Procedure : 1.Connect positive terminals of the battery to one of  the switch terminal. 2.Negative terminal of the battery is connected to the terminal of soldering iron . 3.From switch connect the remaining terminal to the soldering iron. 4.The entire set up is supported on  a wooden block (to provide saftety to the user ) Source : Internet Illustration : Dinesh Singh (III year EEE)

  Automatic application form and hall ticket printing (Thiran 2014) Unlike Civil and Mechanical projects, projects in CSE will not require much of raw materials. But one thing is very necessary, logical thinking. With logical thinking and a little programming skills anyone can make software. There are various facilities available in the market for developing software of various criteria. SOFTWARE REQUIRREMENTS:   CODING LANGUAGE     :   .Net Backend                             :  Ms access Other Softwares              :    doPDF Imported Files                 :    PDFsharp .Net: The Microsoft .NET Framework (pronounced dot net) is a software framework developed by Microsoft that runs primarily on Microsoft Windows. Here I’ve used VB to develop the project. PDF SHARP : PDFsharp is a...

Its a holiday and you wouldn't have access to soldering rods and all those stuff .So,here's a simple model to start recording your cycling adventures . Apparatus required : 1.A bicycle  2.A camera  3.A bolt and nut   4.An old plastic frame  5.Engineer grade sellotape Procedure : 1.Every digital camera will have a provision to mount it over a stand . 2.Use a bolt and nut arrangement to mount it on a cycle handle bar . 3.Make a plastic frame for extra reinforcements and cover up using engineer grade sellotape (you can get that from any hardware shop around ) 4.Once all set , you are ready to hit the roads .Double check the arrangements if the camera isn't your own (hah!!) 5.Once you have achieved success with the above model .Try this one too  All you need for your android phone to be converted as a GPS device is an old plastic frame and a bicycle. Caution : The on road feasibility of the above two mo...

A CCIDENT MESSENGING SYSTEM (Thiran 2014) INTRODUCTION: It would be amazing if an accident can locate itself and sends a message of its location for help, it would save numerous lives. This project presents an accident alert system which instantly sends text messages to the predefined mobile numbers about the accident. CIRCUIT COMPONENTS: 1.PIC Microcontroller 16F73      2.MEMS Chip ADXL202E 3.GSM Modem 4.GPS Module 5.Power Supply 6.Voltage Level Convertor /*these components can be bought from electronics shop (near Fivelamps) in the name of order */ ABOUT THE COMPONENTS: MEMS:                    The MEMS (Micro Electro Mechanical System) is a kind of sensor that can detect acceleration, tilt, shock and vibration. The basic principle of operation behind the MEMS accelerometer is the displacement of a small proof mass etched into the silicon surface of the integrated circuit and suspended ...

It is  always good to operate an electrical appliance with a remote control .It will be very useful to old aged people to have all the controls in a single remote (wouldn't it?) And it would cut the costs required for switch boards at least. Apparatus required : 1.IR sensor TSOP1738 2.Resistors -330k(2),I K ,220k 3.Transistor -BC 548,558 4.Capacitor -100 uf (16V),0.1uf 5.IC 4017 6.LED- red and green 7.Relay switch -5V 8.Battery (5V) /Adapter with a DC jack 9.Remote (TV /DVD) 10.Bulb (230V) and some connecting wires Procedure : 1.Make connections as per the circuit diagram: 2.The remote control module is readily available in the market .We tried it with one like that but instead ,breadboard connections would do fine with the above mentioned components . 3.Special thing is about the relay switch it has Normally open and normally closed terminals which gets closed due to magnetism when supply is switched ON via DC jack to the remote controlled module....

 Previous years Thiran projects are a big source of knowledge . ACCET NEWS now comes up in bringing all the posts you need from the past!        Here comes the H(DT)^2  series  -' How Do They Do That'         Hybrid Vertical Axis Wind Turbine                                   -  THIRAN version 2014          Everyone can't have a conventional horizontal axis wind turbines on their roof!! Here comes TECHWIZARD'S with their specially designed "Hybrid Vertical Axis Wind Turbine" to eliminate this issue.  Components required : 1.Aluminum foil       (from a paper press in Karaikudi near five lamps.) 2. Belt and pulley    (was brought from a hardware shop.) 3.Wheel                 (was brought from a cycle shop.) 4. Shaft   ...

How good it would be if you can switch on electrical appliances by just clapping your hands (the King style )!  The basic of that thought process is a simple clap circuit. Apparatus required : 1.IC 4017 2.Potentiometer 10k 3.IC LM 741 4.Led 5.Resistors -1 k,10 k ,22 k ,470k 6. 9 V battery 7.Microphone 8.Bread board 9. Wires as required. Procedure : 1.Connect the parts as shown in circuit diagram.(its just child's play) 2.Once the connections are over ,give the power supply and check the working of the circuit . Adjust the potentiometer to control the resistance. In the shown  case below ,instead of bread board we have done it with a PCB board which was fabricated at ACCET . The PCB design was facilitated with the use of chemicals(cupric chloride+HCl. It is none other than commercial nail polish remover) to etch the design of circuit on board. Ki cad software was used for the design. To know more on PCB design, Drop a mail to accetnews@gmail....

Arduino- an introduction : Arduino    is an  open-source computer hardware and software company, project and user community that designs and manufactures  microcontroller -based kits for building digital devices and interactive objects that can sense and control the physical world. Do you have a LCD display idle your place ? Then come on! Let's start programming it using Arduino UNO r 3 kit. Apparatus required : 1.Arduino Uno R3 2.LCD display 16×2 3.USB cable 4.Arduino software for burning program on the board 5.Few connecting wires 6.Bread board Procedure : 1.Fix the LCD display in the bread board . 2.As shown below the respective pins are in the LCD display are connected to those in the arduino kit. 3.Choose the input pins in the program .specify the delay value in the position counter loop. 4.Once the errors are null in the program ,burn it in the arduino board . 5.And the display is ready ! Caution :  ...

A pencil ! What can a pencil do apart from writing scriptures?  Can a pencil be converted to a soldering rod ?  Yes! and here's the possibility of using pencil as a heater element . Apparatus required  : 1.Normal pencil /mechanical pencil 2.soldering lead 3.12 v ,6Abattery 4.connecting wires as required Procedure : 1.Cut size the pencil such that a provision for wire .Cut it along its curved surface area without damaging the graphite lead in the middle . 2.Connect positive terminal of the battery to the pencil . 3.Negative is connected to the soldering lead . 4.Start soldering in the usual method with the only exception that we are using a pencil instead of a heating rod! Not a pen ,also pencil is mightier than sword ! Please do try this in your place of choice .In case of mechanical pencil , you can save time for shaping the pencil for usage .You can directly connect the supply to the graphite lead . Heater element (temperature control...

Solar water pump's market  is growing day by day .Need to know how it works ?Try here with a simple model Components required : 1.Solar panel -9v 2.A toy motor 3.plastic arrangements in the form of a tube 4 .Worn out Sim cards (for impeller construction) 5.Super glue/fewikwik and hot glue 6.A wooden stick (demo purpose) Procedure : 1.Make a small plastic casing which should fit around the motor.Make it air tight with the help of super glue.Two perpendicular tube shaped structures (suction and delivery pipe ) should be fixed in the casing . 2..Connect the  respective terminals of solar plate and motor . 3.Use a stick to give support to the set up. 4.Impeller construction: Use Sim card frames to make impeller which should be fixed to the rotating end of the motor. 5.Give  a trialrun   to the pump by immersing the suction end in a bucket of water . Clean energy !No need of batteries too! Developer  :Dinesh Singh  III year EEE...

An electronic component tester -hand made .How would it be ? With the tag of made in home. Components required 1.An small plastic  box 2.A resistor -1k 3.Dc Jack 4.Transistor -BC 547 5.Batteries -2.4 V 6.Led -2 Procedure 1.Make small holes based upon requirement upon the lid of the plastic box. 2.Cathode terminals of both LED's connected to the negative of  the battery 3.Anode terminal of one LED is connected to the emitter of the transistor .Another anode is soldered with a wire which should project outside the lid. 4.The collector  of transistor is connected to the positive of the battery. 5.Resistor is connected between base terminal and positive of DC jack.Negative terminal of DC jack is connected to battery (-). 6.From positive terminal of the battery solder a wire which should also project outside. If the component (electronic) is  placed between the two wires LED glows indicating the working state  of the component .Forward and reverse bi...

As a tribute to the Missile man of India ,we have started a new science column in our blog. Mini Soldering table:  A normal soldering helper table would cost around 1000 rs. We(engineers) are always interested to reduce the cost by some means.Dinesh Singh of III year EEE had created a mini soldering table at a manufacturing cost of 40 rs! The one available in market Dinesh Singh with his 40rs table Apparatus required 1.Magnifying glass 2.Led bulb 3.Two clips  4.Few wooden pieces 5.Screws 6.Double sided tape Procedure: 1.Take a small wooden piece and cut size it . 2.Make small holes using a nail upon the top end to mount the magnifying glass. 3.Fix two clips at two ends of a small wooden stick and mount it upon the bigger one using small screws. 4.Make a turn table arrangement using a screw  before mounting the upper glass. 5.A small led bulb can be placed upon the glass for illumination powered by a small battery. Cover the loose ends . ...