| 1) 'Random' Flasher for 8 LEDs |
| This project uses a 4026 counter and display driver IC to flash eight LEDs in an apparently random manner. It can be used to create a display of your choice. This project flashes eight LEDs in an apparently random manner. It uses a 4026 combined counter and display driver IC which is designed for driving 7-segment LED displays. The sequence is not really random because seven of the LEDs would normally be the display segments, the eighth LED is driven by an output that is normally used for driving further counters. The table below shows the sequence for the LEDs. You can use less than eight LEDs if you wish and the table may help you decide which ones to use for your purpose.
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| Category: Semiconductors -> Applications |
| Posting Date: July 15, 2008 |
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| 2) Network Lead Tester Project |
| This project is specially and carefully designed for confirming the continuity and correct wiring of computer network leads which have 8 wires, but it can be used to check any lead with up to 8 wires by using appropriate connectors. For example stereo audio leads with 5-pin DIN plugs can be checked by just using the first 5 LEDs. Here you can see the complete circuit diagram of network lead tester project. The tester is simple but it can save a great deal of time when making up leads and it is much cheaper than the more sophisticated alternatives. |
| Category: Safety -> Applications |
| Posting Date: July 15, 2008 |
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| 3) AM Transmitter For Engineering Students |
| Are you keenly interested in making your own AM transmitter? If yes, you are at right place. From the initial construction to the final working i.e. the entire manufacturing process is explained and discussed with complete details. Now you don't have to worry for your final year project. And you can only follow some simple instruction for making a authentic AM transmitter. The circuit is in two halfs, an audio amplifier and an RF oscillator.
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| Category: Design -> Applications |
| Posting Date: July 15, 2008 |
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| 4) Beginners-based model railway signal project |
| This signal is controlled automatically by a passing train fitted with a magnet. It can also be manually set to red or green by pressing the switches. Trains will automatically stop at the red signal. Here is the simple method for making a reliable railway signal project. A magnet under the train operates reed switches positioned on the track. The first reed switch changes the signal to red as the train passes, then further along the track a second reed switch changes the signal back to green ready for the next train. The isolated section of track just in front of the signal is switched off by the relay when the signal is red so a train will stop automatically at the red signal.
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| Category: Design -> Applications |
| Posting Date: July 15, 2008 |
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| 5) Light-Sensitive Alarm |
| Here is the simple circuit diagram of light-sensitive alarm. By following some simple steps, you can also make your own light-sensitive alarm. The circuit detects a sudden shadow falling on a light-sensor and sounds a bleeper for a short time (adjustable). Normal lighting can be used, but the circuit will work best if a beam of light is arranged to fall on the light-sensor. Breaking this beam will then cause the bleeper to sound. |
| Category: Semiconductors -> Applications |
| Posting Date: July 15, 2008 |
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| 6) HVAC Thermostat For Beginners |
| HVAC thermostat has been one of the common device used in residential and industrial buildings to control the temperature of a space be it a warehouse, a room, a hall or an office. This thermostat project will focus on the heating control of a space that uses electric heater as its source of heating. It basically consists of a comparator that controls the ON and OFF of the electric heater based on the sensor temperature.
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| Category: Technology -> Applications |
| Posting Date: July 15, 2008 |
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| 7) Variable Frequency Audio Oscillator |
| You all are most heartily welcomed to this website which brings simple circuit diagram of variable frequency audio oscillator using MC34119. This basic electronic project can be used as a low level alarm generator or a code practice oscillator. It is centered around MC34119 IC which is a low power audio amplifier. It provides a differential speaker outputs to maximize output swing at low supply voltages(2.0 V minimum). Coupling capacitors to the speaker are not required. It has the following features.
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| Category: Design -> Applications |
| Posting Date: July 15, 2008 |
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| 8) 1 Watt 2.3 GHz RF Amplifier |
| Here you can see the simple circuit diagram of 1 Watt 2.3 GHz RF amplifier using a MRF2001. Simplicity and repeatability are featured in this 1-watt S-band amplifier design. The design uses MRF2001tranistor as a common base, class C amplifier. The amplifier delivers 1-watt output with 8-dB minimum gain at 24V. Applications include microwave communication equipments and other system requiring medium power, narrow band amplification.
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| Category: Design -> Applications |
| Posting Date: July 15, 2008 |
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| 9) Melody Music Generation Project For Beginners |
| Welcome to this website from where you can learn the simple method for the complete construction of melody music generation project. It is designed to play the melody according to the previously programmed information. The device also includes a pre-amplifier which provides a simple interface to the driver circuit. This project based on the M348X IC is the electronic equivalent of a mechanical music box. It has a range of tunes and is activated by light falling on a light dependent resistor (LDR) sensor. It can be placed anywhere that you want a tune to play when light falls on it: a cupboard, music box. There could be some applications where the LDR is replaced by a switch or a push-button.
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| Category: Design -> Applications |
| Posting Date: July 15, 2008 |
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| 10) Biometrics Digital Signal Processing Project For Beginners |
| Biometrics is the technology used to analyze biological data. Its most recent application is in the area of security where the biological data of a person is used for personal identification and authentication before the person is allowed to proceed to enter a building or do any business transactions.
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| Category: Security -> Applications |
| Posting Date: July 15, 2008 |
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| 11) 6V to 12V Converter For Beginners |
| Here you can learn simple circuit diagram for converting 6V into 12V. This inverter circuit can provide up to 800mA of 12V power from a 6V supply. For example, you could run 12V car accessories in a 6V (British?) car. The circuit is simple, about 75% efficient and quite useful. By changing just a few components, you can also modify it for different voltages.
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| Category: Design -> Applications |
| Posting Date: July 15, 2008 |
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| 12) Motor Controller Project For Beginners |
| Here you can learn simple circuit diagram of motor controller project. By following some simple instructions, you can also make your own motor controller project. Now, you don't need to worry for your final year project because this is your perfect final year project. Here you can see the detailed description of the entire motor controller project.
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| Category: Design -> Applications |
| Posting Date: July 14, 2008 |
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| 13) Hot Water Level Indicator |
| A simple device to indicate various levels of hot water in a tank. You can save fuel bills as well as the economy of the planet with this circuit. Here you can see the complete explanation of the circuit which is as follows: SW1 is a normally open press button switch which allows you to view the level of hot water in a hot water tank. When pressed the voltage difference at the junction of the thermistor and preset is compared to the fixed voltage on the op-amps non-inverting input. Depending on the heat of the water in the tank, the thermistors resistance will toggle the op-amp output to swing to almost full voltage supply and light the appropriate LED.
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| Category: Design -> Applications |
| Posting Date: July 14, 2008 |
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| 14) Microcontroller-based car parking system using |
| Here you can see simple circuit diagram of car parking system using microcontroller. Now, you can also make your own car parking system by following some simple instruction. Automatic multistoreyed car parking system helps to minimize the car parking area. This Automatic Car Parking System enables the parking of vehicles, floor after floor and thus reducing the space used. Here any number of cars can be parked according to the requirement. This idea is developed using 8051 Microcontroller. Here program is written according to this idea using 8051.
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| Category: Security -> Applications |
| Posting Date: July 14, 2008 |
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| 15) Electronic house For Engineering Students |
| The main abstract of this circuit diagram is for developing security for residential house as well as to save precious electric power. Here's an innovative project for beginners in the field of electronics, using basic electronic components. This project proposes the development of security system for farm houses and residential houses. Electronic house consists of six major units. They are : 1. Remote operated gate control 2. Automatic gate light, call bell system 3. Auto adjustable timer unit 4. Remote operated electrical equipments 5. Touch sensitive burglar alarm for internal security and 6. Water level indicator and controller in a tank.
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| Category: Security -> Applications |
| Posting Date: July 14, 2008 |
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