Block diagram of Intercom using LM shows the two PCB Unit (Unit1 & Unit2). and ground will be used common for both. Both are the Transceiver. LM In this intercom schematic, the 8 ohm speakers is used as Intercom circuit diagram. intercom . This website uses cookies to improve your experience. In this circuit we are going to build a very Simple Intercom Circuit using which The main concept behind the circuit is the use of LM audio.

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Your name or email address: Do you mean you want to talk in only one direction? I just used a normal wire for demonstration and the set-up looks something like this below: Apr 26, 4. The circuit can also run on voltage between 5V to 12V so usinng a power supply which you are comfortable with. The output of the amplifier pin 5 is connected to both the speakers. Top 20 Computer Engineering Projects. It has two simple and identical channels—unit 1 and unit 2. How to make an FM transmitter January 26, Log into your account.

If a higher dynamic range is needed, the power supply should be 9V or even 12V.

Simple Two Way Intercom Circuit Diagram

You can use any normal wire for a decent length, but if you need cover pm386 distance use a twisted pair cable like CAT5 to avoid being affected by noise. These are just like landline phones but, you do not need an operator, the voice received from one end will be directly transferred to the receiver on the other end. Right now both the ysing will always be active to keep things simple, so do not worry if you hear yourself on the speaker on your end.


Quote of the day. As both units are identical, working of only the first unit is described here.

Embedded Hardware Engineer 28 December Signal from the microphone is filtered by the combination of resistor R2 and capacitor C1. Apr 26, 7.

Audio amplifier using LM | BuildCircuit – Electronics

Building a circuit on a breadboard November 8, Computer engineering is a discipline that integrates several fields of electrical engineering and computer science required to The complete working of the project is shown in the video below; you can also go through it if you are confused on how to use it. Log lm3886 or register to post Comment.

Apr 26, 5. How to reduce noise distortion in audio amplifier? Can I use this design as stereo amplifier; I mean dual channel amplifier. Dark sensor on breadboard September 8, Can you Give me the Reason Why!!!

Potential Risks of Artificial Intelligence 18 December Use a shielded cable for connecting the microphone to the circuit. So only one person can talk at a time, this type usign communication is called half-duplex communication and this is what we see in walki-talkies. Get Our Weekly Newsletter!


Intercom circuit using lm386

This project brings in the childhood memory of using matchboxes with thread to build a simple telephone. The preferred power supply for the circuit is 6V or above but the circuit also works with regulated 5V from IC not shown in the diagram.

The preamplifier may exhibit instability at very high frequencies. Do you already have an account? Review of PCBWay after-sale service.

The resistor R2 is used to control the volume of the speaker; here I interom limited the volume to medium level using a 4. Quote and Order boards in minutes on https: To make the project more attractive you can use long wires to increase the distance between the set-1 and set-2 microphone and speaker. How much supply vtg to give for the circuit. You have entered an incorrect email address! This audio amplifier module can be used to play your FM receiver kit, make infrared based music transmitter and receiveretc.

Clap switch December 18, Apr 26, 6. Career advice and jobs related to electronics and IOT. Please enter your comment!