transmitter/ receiver circuit help

[Hessam93]

hey guys i need help designing a very simple rf circuit. i wanted to make a simple transmitter that would be fairly compact and has a switch. on the other side there would be a receiver that will turn on an led once the button is pressed. it's for a short distance so range is not a problem. if anyone could provide a schematic that would be awesome, if not tips would be helpful. thanks

 

[shabazmondal]

just google RF 433 MHz circuit..in the images section...you will get it

 

[deepak007]

Try this :THE WASP Page1

Very simple to build.

 

[shabazmondal]

RF Module : Transmitter & Receiver

try this link...should be useful..!!
let me know if u need anything

 

[tpetar]

Go to market and buy wireless doorbell. 1eur cost.

Of course You always may to make Your solutions.

Here is one DIY:



With SMD RX and especially TX are very small.

All inductors are 10uH.
PCB Antena 2x1cm

DIP to SMD replacement:
TL082 TL082CD SO-8
BFY90 BFR93A SOT-23
BF199 BFS20 SOT-23

Photo of 0805 SMD PCB :