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Fm transmitter circuit

Fm transmitter circuit Power supply   :-   Using power supply stable DC voltage 2 V to 3.7 V max. You can only use battery because battery is perfect for this circuit battery output doesn't any noise. Components  :- Transistor BC 547 , Resistance 100 ohm , 4.7 K ohm .   Capacitor 1nF, 47pF, 22pF.   Inductor 1uH. Condenser mic any . Resistance  :-   Using resistance 100 ohm +-5% changing 1/3 watt, 4.7 K ohm +-5% changing 1/3 watt. Capacitor  :-   1nF this capacitor number 102 non-polar, 22pF this capacitor number 22 non-polar, 47pF this capacitor number 47 non-polar. Inductor  :-   This part important part for any transmitter circuit, 1uH 5Turn 24SWG. Transistor  :-   BC 547  is an NPN Bipolar junction transistor. It is commonly  used  to amplify current. A small current at its base controls a larger current at collector & emitter terminals.  It has a transition...
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Automatic home appliances

 Automatic Home Appliances Remote control electrical appliances  Setting up  IR sensor  connection to Atmega 328P is very simple. Beside VCC and GND  pin , the  sensor  has only one output  pin  that should be connected to one of digital  pins  of the Atmega 328P. HC - 05  has red LED which indicates connection status, whether the  Bluetooth  is connected or not. Before connecting to  HC - 05 module  this red LED blinks continuously in a periodic manner. When it gets connected to any other  Bluetooth  device, its blinking slows down to two seconds. This  module works  on 3.3 V - 6V but you can use only 5V DC. this module use any Serial  AMS1117  is a popular SMD package 3-pin voltage regulator that is available in many models for fixed and adjustable voltage requirements. The IC can deliver a maximum current of 1A and the output voltage can vary from 1.5V to 5V. ...
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FM transmitter using crystal

FM transmitter using crystal   Power supply   :-   Using power supply stable DC voltage 2 V to 3.7 V max. You can only use battery because battery is perfect for this circuit battery output doesn't any noise. Components  :-  Transistor BC 547 , Resistance 100 ohm, 4.7K ohm.   Capacitor 1nF, 47pF,              22pF.   Inductor 1uH. Condenser mic any .       Resistance  :-   Using resistance 100 ohm +-5% changing 1/3 watt, 4.7 K ohm +-5% changing 1/3 watt. Video link -  https://youtu.be/aV7K2NHrHTM 3 Volt Circuit Diagram Capacitor  :-   1uF this capacitor positive pin connect 4.7K ohm resistance one pin and another pin connect 2K ohm resistance one number pin. 5 Volt Circuit Diagram This Circuit Transmitter range 0.3 Kilometre (300 Metre) to 0.5 kilometre (500 Metre) without any obstacle otherwise range 0.2 Kilometre (200 metre) anywhere. It's a spy device. D...
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