2 Digit Digital object counter Here is the circuit Diagram Of the Door Entry Person Counter project, This object counter circuit is used as a Digital Object Counter using a Two Digit Seven Segment LED Display. This can also be called People or Object counter Circuit diagram using IC 555 and IC 4033 or Digital […]
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Introduction What is a Mobile/Cell Phone Jammer A cell phone jammer is a small equipment that is capable of blocking the transmission of signals between cell phones and base stations. This is mostly done by creating interference at the operating frequency ranges of cell phones, which results in no signal or significant loss of signal
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This is the circuit diagram of mobile detector . This circuit can detect the RF signal From mobile phones and give a signal through Sound and LED Glow. This pocket-sized mobile communication detector or sniffer can sense the existence of a mobile device. This mobile sensor can be used to avoid the use of mobile
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Mobile phone detector circuit This detects when any mobile phone active in this range. Active means when incoming, outgoing, SMS transmission, or audio/video transmission by mobile. This detects signals of an active mobile phone even in silent mode. This is useful in that places where the mobile phone is prohibited like Offices, Classroom, Hospitals, Exam
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Automatic Temperature controlled DC FAN Controller Circuit We use many electronic gadgets like power Amplifiers, SMPS, Inverters, and AC-DC converters, etc. These gadgets use ICs that generate more heat during operation and required any temperature controller for Cooling to control the heat for protecting the devices. This circuit is ideal to control the cooling fan
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DC FAN Speed Regulator Circuit DC FAN Motor Speed Controller Regulator Circuit Works ON Principle of Pulse Width Modulation (PWM) technique , By Using This Technique Controlling Of DC Motor Speed is very Smoothly And Noise Free. Introduction Of PWM The modulation is a process of varying the parameter of a carrier signal in accordance
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Automatic Door Security Alarm System Introduction This is used to any Door or Gate to Detect Any human person or any animal pass across the gate. When Any Crosses the gate then Automatic alarm beeped for some duration and then after automatically stopped. So even any person or gateman or guard is not available at
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All About Resistor Introduction. What is a Resistor A resistor is the most common passive two-terminal component used in the electronics circuit. This device used in various circuits. Without a resistor, we can’t imagine any circuit. The resistor is a very important device to make a circuit. Any simple to the simple circuit we
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Method of Finding the value/Meaning of codes of capacitor • Ceramic disc capacitors have two to three digits code printed on them. • The first two numbers describe the value of the capacitor and the third number is the number of zeros in the multiplier. • When the first two numbers are multiplied with the multiplier, the resulting
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circuit diagram of Remote controlled switch project Image- electronicsforu.com • This is a schematic circuit diagram of a remote-controlled switch for home appliances. • TSOP1738 used in the circuit for detecting IR signals from the remote. • This circuit works with any infrared remote used for TV, DVD, USB player, etc. In this circuit there
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Remote Controlled Switch This is the very simple circuit diagram of the IR remote control switch. We use the normal switch in our daily life and after a long time used to this switching system, we can no more interested in that. This is a good solution for a unique and so interesting idea to
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555 Timer This is very popular and most commonly using ic used for various purposes in the electronics area. 555 timer ic is widely used in many electronic circuits for generating pulses, timer/ delay, oscillation, tone generator, led light flasher, multivibrator, etc. This ic especially designed to accurately produce the required output waveform with the
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230v ac to 12v 1A dc and 5v 1A dc power supply circuit diagram ac to dc converter In many electronics projects, we see that there is a requirement of a fixed-voltage power supply, fixed means no fluctuation in voltage. The output of any circuit fully depends on input voltage supply and it should be
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Automatic Water level pump controller for submersible motor Water pump controller circuit will automatically stop the motor pump when the tank is full. Description. At many times when the water tank is empty, we start the motor for storing the water in the tank and get busy in other work. Then we forget to
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How to make 220v AC LED indicator Generally we have seen that there are all indicators in our house on the wall switch board are of neon bulb which is small in size and connects with 68k resistor in series. You can make an indicator that glows very nice and looking so cool using
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20w amplifier using ic TDA7240 The TDA7240A is a 20W bridge audio amplifier IC . COMPACT HEPTAWATT PACKAGE in 7 pin packing. The audio amplifier shown here is based on the TDA7240 IC . The ic TDA 7240 is an audio amplifier IC that can deliver 20 watts of audio output power into a 4 ohm load. The
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16-way clap operated switch project Introduction You can Control your home appliances with the clap. A circuit with clap operated switch, without moving out of your position or without getting out of your bed. you just have to clap between the distance where is reachable the sound of clap in amount able of
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10w x 10w stereo amplifier circuit diagram using TDA2009 IC TDA2009A is class AB dual Hi-Fi powerful Audio power amplifier assembled in Multiwatt package, especially designed for high-quality stereo applications as Hi-Fi and music centers. This ic has the following specification • HIGH OUTPUT POWER (2 x 10W) • HIGH CURRENT CAPABILITY (UP TO 3.5A) • AC SHORT
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44 w Stereo Amplifier Circuit for car Here is a circuit of a Medium power stereo 44W amplifier using IC TDA1553. This ic is a monolithic Class-B audio amplifier which provides 22w output at both channel. It means 2 x 22 watt amplifiers . Which is in bridge tied load (BTL) configuration . 12V DC power
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LM386 Audio Amplifier Circuit In this project, i am showing you how to build LM386 Audio Amplifier Circuit. This is a very low cost and easy to make and can power any speaker. As its cost and fewer components required and as the size of the circuit the output sound is loud and enough for
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Multi-tone Musical alarm circuit IC UM3481 is an 8 song Melody Generator IC designed for the purpose of Melody generation in various gadgets. It is widely used in Doorbells, Alarm systems, Reverse horns, Toys, Clocks, and Timers etc. This circuit provides 8 tones. This multi-tone doorbell circuit produces 8 types of musical tone. You get
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Remote controlled switch for Appliance A switch that is place in your hand at bed, this is controlled wireless to operate an appliance. Which is so unique for whose who use conventional switch to switch or off his appliance at your home. A remote-controlled switch that can ON or OFF any appliance using a TV,
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