# Read frequency from radio control 433 MHz

**URL:** <https://forum.arduino.cc/t/read-frequency-from-radio-control-433-mhz/1179762>\
**Category:** General Guidance\
**Created:** [October 18, 2023, 1:12pm UTC](https://forum.arduino.cc/t/read-frequency-from-radio-control-433-mhz/1179762 "2023-10-18T13:12:17Z")\
**Posts on this page:** 6\
**Page:** 1

<div class="post-metadata">

**Author:** ![Gaetano\_Zummo](https://avatars.discourse-cdn.com/v4/letter/g/bbce88/32.png) [@Gaetano\_Zummo](https://forum.arduino.cc/u/Gaetano_Zummo)\
**Post date:** [October 18, 2023, 1:12pm UTC](https://forum.arduino.cc/t/read-frequency-from-radio-control-433-mhz/1179762/1 "2023-10-18T13:12:17Z")

</div>

Hi, I want to use Arduino to read a universal radio control using a 433 MHz receiver module. once read I have to send this read frequency to the shutter receiver via a 433 MHz transmitter. Can anyone give me good advice?

---

<div class="post-metadata">

**Author:** ![DrDiettrich](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/drdiettrich/32/219048_2.png) [@DrDiettrich](https://forum.arduino.cc/u/DrDiettrich)\
**Post date:** [October 18, 2023, 2:07pm UTC](https://forum.arduino.cc/t/read-frequency-from-radio-control-433-mhz/1179762/2 "2023-10-18T14:07:29Z")

</div>

> [@Gaetano\_Zummo](#):
>
> read a universal radio control using a 433 MHz receiver module.

How does that control output the frequency?  
How do you want to encode it for transmission to the shutter receiver?

---

<div class="post-metadata">

**Author:** ![gilshultz](https://avatars.discourse-cdn.com/v4/letter/g/67e7ee/32.png) [@gilshultz](https://forum.arduino.cc/u/gilshultz)\
**Post date:** [October 18, 2023, 3:15pm UTC](https://forum.arduino.cc/t/read-frequency-from-radio-control-433-mhz/1179762/3 "2023-10-18T15:15:27Z")

</div>

Connect the green wire to the yellow, remove the battery and turn on. That should solve your problem using the information you gave us. What arduino, what hardware, links to technical information on the parts etc.

---

<div class="post-metadata">

**Author:** ![paulpaulson](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/paulpaulson/32/363643_2.png) [@paulpaulson](https://forum.arduino.cc/u/paulpaulson)\
**Post date:** [October 19, 2023, 6:27am UTC](https://forum.arduino.cc/t/read-frequency-from-radio-control-433-mhz/1179762/4 "2023-10-19T06:27:35Z")

</div>

> [@Gaetano\_Zummo](#):
>
> Can anyone give me good advice?

Yes.

Visit your local amatuer radio club to get some ideas.

---

<div class="post-metadata">

**Author:** ![Gaetano\_Zummo](https://avatars.discourse-cdn.com/v4/letter/g/bbce88/32.png) [@Gaetano\_Zummo](https://forum.arduino.cc/u/Gaetano_Zummo)\
**Post date:** [October 19, 2023, 6:45am UTC](https://forum.arduino.cc/t/read-frequency-from-radio-control-433-mhz/1179762/5 "2023-10-19T06:45:32Z")

</div>

OK, I solved it with the RCSwitch.h library

---

<div class="post-metadata">

**Author:** ![system](https://dub1.discourse-cdn.com/arduino/user_avatar/forum.arduino.cc/system/32/1140315_2.png) [@system](https://forum.arduino.cc/u/system)\
**Post date:** [April 16, 2024, 6:46am UTC](https://forum.arduino.cc/t/read-frequency-from-radio-control-433-mhz/1179762/6 "2024-04-16T06:46:16Z")

</div>

Closed on April 16, 2024, 6:46am UTC

This topic was automatically closed 180 days after the last reply. New replies are no longer allowed.