how do i change the frecuncy of an IR transmitter to 433.92MHz

Projects General Guidance
1

please i need 2 remotes for a doorbell :o i need the code and circuit

2

Your title does not make sense. IR does not work at 433MHz - 38kHz is more usual

If you want someone to write a program for you please ask in the Gigs and Collaborations section of the Forum and be prepared to pay.

...R

3

Actually, IR works at hundreds of GHz to hundreds of THz.
It's often modulated at the extremely pedestrian 38kHz.

4

IsaiahCheney:
please i need 2 remotes for a doorbell :o i need the code and circuit

You need to give people information for them to be able to help you.
The receiver in the door bell and the transmitter in the remotes will need to match.

What is the make and model of the doorbell and do you have a link to technical information on it?
Do you have a remote that presently works with the doorbell, if so what is its make and model?
What are the make and models of the remotes whose frequency you want to change?

To be honest doorbells and remotes are relatively cheap and your best bet may be to just buy a new set.

5

AWOL:
Actually, IR works at hundreds of GHz to hundreds of THz.
It's often modulated at the extremely pedestrian 38kHz.

Of course you are quite correct. I was only thinking of the devices a pedestrian might have in his pocket.

...R

6

I.R. at Terahertz? wow fry a chicken while you send data....

I'm still trying to wrap my warped brain around why you need a remote to ring the doorbell.......

7

123Splat:
I'm still trying to wrap my warped brain around why you need a remote to ring the doorbell.......

A revolving door?

8

123Splat:
....

I'm still trying to wrap my warped brain around why you need a remote to ring the doorbell.......

LOL good point, I just took the post about IR and wanting 2 remotes at face value.

I guess the idea is a wireless door bell. that would make the remotes the external buttons you press to ring the internal bell. Maybe there are two remotes because there would be one for the front door and one for the rear, though it might make more sense if there was one remote activating two bells in different parts of the house. Either way IR does not seem correct surely it has to be wireless?