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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Apr 26, 5. The wave is like something else. Computer engineering is a discipline that integrates several fields of electrical engineering and computer science required to How to make one transistor FM transmitter on a stripboard- page The preamplifier may exhibit instability at very high frequencies.

Well basically i want it one sided only 1 transmitter and 1 receiver and for starters about 5m apartwhat should i do? 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.

LM386 electronic intercom circuit

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The input of the amplifier is the microphone microphone has polarity so be careful while connecting itWe cannot amplify the sound from both the microphone interocm the same time, so we use a SPDT single pole double throw switch as shown above. The value of resistor R11 is selected such that the voltage between the collector and emitter of T1 is approximately half the power supply voltage.


Intercom Using LM386

Apr 26, 7. Tuesday, January 1, Log in or register to post Comment. The circuit can also run on voltage between 5V to 12V so choose a power supply which you are comfortable with. Apr 26, 3.

Simplest DIY clap switch- Assembly tutorial. Hello, I have tested it on Proteus. Internship — Image Processing Engineer 27 December How to use the DIY clap switch September 16, Potential Risks of Artificial Intelligence 18 December How much supply vtg to give for the circuit. Door Sensor 19 December Assemble the circuits for units 1 and 2 on separate general-purpose PCBs and enclose in suitable cabinets.

Your name or email address: How to use a relay November 15, If you want other than line-of-sight then it would need to be RF. These should be kept away from the cables of the mains power supply and other sources of electromagnetic interference. Get Our Weekly Newsletter! The circuit is built around two low-power LM audio amplifiers. But, will the sound of the person of any microphone intrcom heard in both speakers?

Simple Two Way Intercom Circuit Diagram

To make the project more attractive you can use long wires to increase the distance between the set-1 and set-2 microphone and usin.


You can also upgrade this project by adding another SPDT switch to turn of the speaker on your side when you are talking. 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.

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You May Also Like: I intetcom used a normal wire for demonstration and the set-up looks something like this below:. Please enter your name here. Keep the interconnection cables as short as possible—preferably shorter than 10 metres. This audio amplifier module can be used to play your FM receiver kit, make infrared based music transmitter and receiveretc.

The main concept usign the circuit is the use of LM audio amplifier which receives the audio signal from microphone, amplifies it and plays it on the speaker. Mar 14, 20, 5, Or can i have your contacts?

One speaker will be used in set-1 and the other in set-2 as show in the circuit diagram.

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