433 mhz reciever low range

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1

Hi there!

I'm new to this stuff, just recently bought an arduino nano and a cheap (3-4$) 433 mhz transmitter/receiver kit.
I'm trying to use them for sensing car remote signals. It is working, but the range is very low, like a few centimeters max. My question is, what am I doing wrong? Is the receiver too cheap? If so can you maybe recommend something? I'm trying to achieve around 50 meters of range.

Some additional information that might be helpful:
-car remote: carguard MIC002 (very good range probably more than 50 meters)
-433mhz receiver: mx rm 5v
-I am using the ReceiveDemo_Advanced code from the rc-switch library

Thx!

2

You have to use the identical frequency, down to 3 decimal places. In addition, the type of data and modulation technique must be identical for you to receive the remote signal.

1 Like
3

Why do you want to sense 'car remote signals' ?

If you want to remote control something there are several radio modules that will give you much much more than 50M range.

4

Hello robicsirak

Take a view here:

Have a nice day and enjoy programming in C++ and learning.
MIND THE GAP

5

Short answer is, just because I had one lying around and I thought it can give me the range I wanted, but you are right, I'll be looking for some better alternatives! Thx for your answer.

6

Thx all for your answers, I'll be looking for some better alternatives!
@paulpaulson thx for the recommendation!

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