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transmitter/ receiver circuit help

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Hessam93

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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

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

tpetar

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

Of course You always may to make Your solutions.

Here is one DIY:

433_tx_rx.gif

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 :

DSCF0001.JPGDSCF0011.JPG
 
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