# Sonoff Ewlink 433 mhz….?

**URL:** <https://community.homey.app/t/sonoff-ewlink-433-mhz/102744>\
**Category:** Vragen & hulp\
**Tags:** domoticz, homey-pro\
**Created:** [January 30, 2024, 3:43pm UTC](https://community.homey.app/t/sonoff-ewlink-433-mhz/102744 "2024-01-30T15:43:35Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![Peter\_Kawa](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/peter_kawa/32/173848_2.png) [@Peter\_Kawa](https://community.homey.app/u/Peter_Kawa)\
**Post date:** [January 31, 2024, 7:36pm UTC](https://community.homey.app/t/sonoff-ewlink-433-mhz/102744/2 "2024-01-31T19:36:52Z")

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Mja, Je kunt overwegen om zelf een app te schrijven. Op de een of andere manier moet je de gebruikte RF signalen zien te ontdekken / achterhalen.  
Deze heer is het gelukt en heeft een how to geschreven!:

> [@RF Custom App: Signal (from signal analyzer) sent but not received](https://community.homey.app/t/rf-custom-app-signal-from-signal-analyzer-sent-but-not-received/96917/17):
>
> For anyone that would be interested in creating an Homey app for their RF device, here is how I processed: have a look at this: [Tuto](https://apps.developer.homey.app/the-basics/getting-started) (Vidéo are helpful) Then use the [Homey Developper Tool](https://tools.developer.homey.app/tools/signals) to register a button of your remote. Then you can use [this tool](http://htmlpreview.github.io/?https://github.com/harriedegroot/Athom-Homey-RF-Signal-Analyzer/blob/master/index.html) made by someone here to make a first analysis of the signal. The goal is to identify the header, the trailer, and the data in the middle, and to compute an average signal (because of noise, each register session will result in a slightly dif…

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