LDR circuit diagram Dark sensor circuit This is a light-controlled LED light Dark sensor circuit, Light-activated switch, which fully depends on Light. LDR is used in this for sensing the DARK and LIGHT. LDR is a Light Dependent Resistor which resistance increases as darkness and its resistance is Decreases when Light falling on it. automatic […]
Light Activated Switch using Transistor Read More »
Automatic ON OFF light switch circuit This is a light operated Relay circuit . Light Dependent Resistor(LDR ) is used to operate the switching Function of this circuit. This circuit is used to Switched on light At night Automatic and switch OFF in DAY light (sunlight) Automatic . There is no need to switch on
Automatic Light Activated Bulb Switch Controller Read More »
High quality Stereo FM Transmitter If you want to transmit the music around the hause then you can make your own small radio station by making a project using this circuit. Make your own radio station with this circuit, and transmit the music around the house. You can transmit with the connecting of your mobile
High Quality Stereo FM Transmitter circuit Diagram Read More »
Touch Alarm This is a simple but interesting Project. In this circuit 555 timer is used. 555 timer ic is connected in Monostable mode. A Very high resistor is connected between Vcc and pin 7 . When touch the pin 2 then it is Triggered by the body because it get a negative pulse by
Touch Alarm Switch Circuit using 555 Read More »
LDR darkness sensor circuit dark sensor circuit This Automatic light-operated light switch circuit is Based on LDR. LDR is a Light Dependent Resistor. It is also called a Photoresistor. Introduction of LDR LDR (Photoresistor) is a type of variable resistor that Increases its Resistance when the Light is Decreases and its Resistance Decreases When Light
Automatic Night Lamp Using LDR Read More »
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
2 Digit Digital Object Counter Read More »
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
Mobile Phone jammer circuit diagram Read More »
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
Mobile Phone Sensor Circuit Read More »
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
Mobile Phone Detector circuit diagram | Cell Phone Detector Read More »
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
Automatic DC FAN controller circuit Read More »
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
DC FAN Speed Regulator Circuit Read More »
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
IR Based Security Alarm Circuit Read More »
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
Resistor working | Color Code Of Resistor | SMD Resistor Code Read More »
Method of Finding the value/Meaning of codes of capacitor • Ceramic disc capacitors have two to three-digit codes 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 value
How to Read Value of ceramic Capacitor Read More »
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
Remote Controlled Switch for Appliance Read More »
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
Remote Controlled on off Switch Circuit Diagram Read More »
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
555 Timer ic Tutorial Read More »
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
230v ac to 12v dc and 5v dc Regulated Power Converter Read More »
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
Automatic Water pump controller For Overhead Watertank Read More »
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
LED Power indicator for 220v AC mains Read More »
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
How to make 20w Audio Amplifier Read More »
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
16-Way Clap Operated Switch Circuit|Sound Operated Switch Circuit Read More »