i need help building a arduino transmitter and receiver for 433 hertz key fob repeater. Will pay. thanks
you can buy that stuff off the shelf.
Are you positive it's a repeater? If it is, what is the source of the signal you want to repeat?
My discounted forum rate is $500 min 13w 1/3 advance all expenses.
I just had a home made Butter Tart so I am in a good mood. Here is a link to a tutorial about how to build the transmitter and receiver.
EDIT: Bad link
https://dronebotworkshop.com/433mhz-rf-modules-arduino/
https://bitl.to/4UK7
Wat range do you want, and what range do you have.
The aerial (or lack thereoff) is usually the problem.
Connect a better aerial to the transmitter and/or receiver if you can.
Receivers with a coil with red lacker on top are the worst.
Google "Superheterodyne vs. superreg"
Leo..
If both TX and RX have a 17 cm straight wire antenna, you should get at least 300 m range, clear line of sight. I routinely get > 500 m, clear line of sight.
That is using a superheterodyne receiver, as suggested above.
(post deleted by author)
I've deleted some posts that are not relevant to the OP's request. If you wish to discuss food then I suggest General Discussion under the Community category.
Please now only reply with things relevant to the OP, other kinds of reply risk a suspension.
i have everything to make it, im just not good at coding to make it work
If your key code is compatible just buy one of these:
https://elsema.com/pctr433/
google for "433 hertz key fob repeater" - you'll get more to choose from.
Oh, and 60 bucks .. nobody will build one for you that cheap 