# \[I want a node\] Rf 434 mhz transmitter and receiver
**URL:** https://forum.xod.io/t/i-want-a-node-rf-434-mhz-transmitter-and-receiver/1756
**Category:** Hardware Interfacing Questions
**Created:** [January 22, 2019, 9:07pm UTC](https://forum.xod.io/t/i-want-a-node-rf-434-mhz-transmitter-and-receiver/1756 "2019-01-22T21:07:30Z")
**Posts on this page:** 12
**Page:** 1
### Author:  [@splcarlab](https://forum.xod.io/u/splcarlab)
#### Post date: [January 22, 2019, 9:07pm UTC](https://forum.xod.io/t/i-want-a-node-rf-434-mhz-transmitter-and-receiver/1756/1 "2019-01-22T21:07:30Z")
## RF transmitter/ receiver
Receive and interpret code from an RF remote , Transmit a known 433 Mhz RF code to a 433 Mhz device , Record and play back a 433 Mhz RF remote signal
### Inputs
- `PORT` (number, default=12) — which port the transmitter/ receiver connected
- `UPD` (pulse, default=never)
- `Send data` (number) — Transmit code to receiver
### Outputs
- `Data received` (number) — Receive code from an RF remote
* * *
Thank you
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### Author:  [@bradzilla84](https://forum.xod.io/u/bradzilla84)
#### Post date: [February 2, 2019, 2:41am UTC](https://forum.xod.io/t/i-want-a-node-rf-434-mhz-transmitter-and-receiver/1756/2 "2019-02-02T02:41:22Z")
Hi splcarlab
Something like this?
[https://xod.io/libs/bradzilla84/433mhz-rcswitch/](https://xod.io/libs/bradzilla84/433mhz-rcswitch/)
let me know how you go.
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### Author:  [@splcarlab](https://forum.xod.io/u/splcarlab)
#### Post date: [February 3, 2019, 4:07pm UTC](https://forum.xod.io/t/i-want-a-node-rf-434-mhz-transmitter-and-receiver/1756/3 "2019-02-03T16:07:07Z")
Man, that’s exactly what I needed,And even more Thank you,Thank you,Thank you,
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### Author:  [@bradzilla84](https://forum.xod.io/u/bradzilla84)
#### Post date: [February 4, 2019, 11:54am UTC](https://forum.xod.io/t/i-want-a-node-rf-434-mhz-transmitter-and-receiver/1756/4 "2019-02-04T11:54:21Z")
No problem… My pleasure.
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### Author:  [@bradzilla84](https://forum.xod.io/u/bradzilla84)
#### Post date: [February 6, 2019, 8:59am UTC](https://forum.xod.io/t/i-want-a-node-rf-434-mhz-transmitter-and-receiver/1756/5 "2019-02-06T08:59:12Z")
How did you go? any problems?
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### Author:  [@dinosalvioni](https://forum.xod.io/u/dinosalvioni)
#### Post date: [February 25, 2019, 10:36am UTC](https://forum.xod.io/t/i-want-a-node-rf-434-mhz-transmitter-and-receiver/1756/6 "2019-02-25T10:36:33Z")
i had tryed library. Receive is ok but trasmit cannot work. Anyone had probe it? (its ok pinout 10 is D10 ?)
i used
> **[BQLZR 1 Set di 433Mhz RF Wireless trasmettitore e modulo ricevitore PCB: Amazon.it: Elettronica](https://www.amazon.it/gp/product/B00EQ1U5XQ/ref=ppx_yo_dt_b_asin_title_o00_s00?ie=UTF8&psc=1)**
>
> EUR 6,62
thanks a lot
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### Author:  [@bradzilla84](https://forum.xod.io/u/bradzilla84)
#### Post date: [February 25, 2019, 2:04pm UTC](https://forum.xod.io/t/i-want-a-node-rf-434-mhz-transmitter-and-receiver/1756/7 "2019-02-25T14:04:08Z")
Hi dinosalvioni
What problem were you having with Transmit?
I tested it with Example-Repeat with no problems on a set of “Watts Clever” GPO Switches.
I have updated the Lib with the new Watch nodes to.
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### Author:  [@splcarlab](https://forum.xod.io/u/splcarlab)
#### Post date: [February 28, 2019, 4:46pm UTC](https://forum.xod.io/t/i-want-a-node-rf-434-mhz-transmitter-and-receiver/1756/8 "2019-02-28T16:46:16Z")
works great for me , decode most chinese car remote control
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### Author:  [@dinosalvioni](https://forum.xod.io/u/dinosalvioni)
#### Post date: [March 7, 2019, 1:45pm UTC](https://forum.xod.io/t/i-want-a-node-rf-434-mhz-transmitter-and-receiver/1756/9 "2019-03-07T13:45:03Z")
Sorry, now it works fine in stand alone and in simple program.
But i had to try a more complex program with (bitrex/xod-menu-system) and rf node “433 receive” start but dont work (interrupt dont receive siglal or similar effect). Rf433 send not works!
I suspect it is something related to interrupt management in complex program.
How XOD operate with interrupts?
Any comment and workaround is welcome.
I Use Arduino Mega
Thanks a lot
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### Author:  [@gweimer](https://forum.xod.io/u/gweimer)
#### Post date: [March 7, 2019, 1:58pm UTC](https://forum.xod.io/t/i-want-a-node-rf-434-mhz-transmitter-and-receiver/1756/10 "2019-03-07T13:58:44Z")
My experience with interrupts is that Arduino reuses interrupts for multiple tasks, like timers and PWM generators. Since XOD does not allow you to select interrupt for timer, you have to resolve any conflict by using a different PWM pin. I don’t know how you could resolve conflict if a library is conflicting with a timer.
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### Author:  [@dinosalvioni](https://forum.xod.io/u/dinosalvioni)
#### Post date: [March 8, 2019, 2:52am UTC](https://forum.xod.io/t/i-want-a-node-rf-434-mhz-transmitter-and-receiver/1756/11 "2019-03-08T02:52:33Z")
Sorry can you check your repeater example program of rf433 library. it dont works: after 10 seconds (first cicle of clock) where it receive (but dont trasmit on other shield) program stop to receive.
i had also many problem to trasmit, but my shield with [https://github.com/sui77/rc-switch/blob/master/examples/SendDemo/SendDemo.ino](https://github.com/sui77/rc-switch/blob/master/examples/SendDemo/SendDemo.ino) works right
insted receiver works fine
i dont know where is problem but with other scripts my hardware go right
thanks a lot
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### Author:  [@system](https://forum.xod.io/u/system)
#### Post date: [April 21, 2020, 3:30pm UTC](https://forum.xod.io/t/i-want-a-node-rf-434-mhz-transmitter-and-receiver/1756/12 "2020-04-21T15:30:57Z")
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