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| RF Transmitter And Receiver Circuit |
RF transmitter and receiver circuit on a pcb.This is a simple inductor based circuit which you can build easily.
This is a wireless project using RF signal technology.
Here i will show how to make RF transmitter and receiver. This is a basic RF transmitter and receiver circuit to control a led wirelessly.
We have discussed how to make RF transmitters and receivers without inductor coil earlier.The range is very low in that project.
But this project uses an inductor and much effecient than early circuit. The range of the project is significantly increased as we modified parts on both sides
Everyones dream in electronics is to sent a signal wirelessly by ourown.But its very hard to make ourown. Here i can help you by implementing a new approch in terms of electronics. Yes you wont fail in building such a one. As the direct circuit diagram is already in front of you. So you dont need to look at the circuit diagram.
Components Used :
Transmitter Section📢
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| RF Transmitter And Receiver Circuit |
T1 - Transistor - Bd 139
R1 - Resistor - 2.2 ohms
R2 - Resistor - 12 kiloohms
C1 - Capacitor - 100 pf
C2 - Capacitor - 10 pf
S1 - Switch - Reset / Restart / Micro switch
L1 - Inductor - 5 turns on a 4 mm screw driver
Inductor Winding :
Inductor winding is very easy. Use a normal single core wire with a length.I use a normal AC line tester(screw driver) to wind the wire. Dont worry about length only how many turns matters here. If you are curious about length of wire you can take it as a 5 centimeters.The image is shown below.
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| RF Transmitter And Receiver Circuit |
Antenna wire :
In the above figure the transmitter pcb is having an antenna which is spiral in shape. It is not mandatory that the wire should be like spiral / inductor winding in shape. We can use a straight long wire of 15 centimeters length instead.
Power Supply :
The supply voltage given to the circuit is 9 volt.We can increase voltage upto 12 volt.
The positive supply is given at S1 and negative is given to R1 and C2 joining point.
Receiver section📢📢
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| RF Transmitter And Receiver Circuit |
IC - Integrated Circuit - Lm 358
R1 - Resistor - 1 kilo ohms
R2 - Resistor - 22 kilo ohms
Radio Diode - 1n 34
Led - Red Color
Antenna wire :
In the above figure the receiver pcb is having an antenna which is spiral in shape. It is not mandatory that the wire should be like spiral / inductor winding like in shape. We can use a straight wire of 15 centimeters length here also.
Complete project Circuit On PCB
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| RF Transmitter And Receiver Circuit |
How To Increase Range Of Transmitter ? :
This is a question offenly asked to me. By increasing the length of antenna we can increase the range a little bit. Another way is to increase the voltage to 12 volts.
The alternate way is to modify the circuit with a transistor, which we will discuss later. For this time this is the basic circuit for transmitting and receiving a data wirelessly.
Transmitter & Receiver Circuit Diagram
Transmitter Circuit Diagram :📢📢📢
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| RF Transmitter And Receiver Circuit |
C1 - Capacitor - 100 pf
C2 - Capacitor - 10 pf
R1 - Resistor - 12 Kiloohms
R2 - Resistor - 2.2 ohms
L1 - Inductor - 5 Turns on 4mm thickness
Antenna - Use a 15 cm long wire
Power Supply - Use a 9 volt battery
Receiver Circuit Diagram
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| RF Transmitter And Receiver Circuit |
For Amazing & Simple Electronic Projects
Ic - Lm358
R1 - Resistor - 1 Kiloohms
R2 - Resistor - 22 Kiloohms
RD - Radio Diode
Antenna - Use a 15 cm long wire
Power Supply - Use a 5 volt battery
Watch video 👇....
More projects are coming this week.
Comment below if you build this project, or facing a problem, or what circuit project you need, or you need a help...
Fm Transmitter Circuit Project Click Here
