# 433 and 868MHz **URL:** \ **Category:** Questions & Help\ **Created:** [March 23, 2021, 5:17pm UTC](https://community.homey.app/t/433-and-868mhz/45146 "2021-03-23T17:17:02Z")\ **Posts on this page:** 9\ **Page:** 1
**Author:** ![Rafael\_Machado](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/rafael_machado/32/37790_2.png) [@Rafael\_Machado](https://community.homey.app/u/Rafael_Machado)\ **Post date:** [March 23, 2021, 5:17pm UTC](https://community.homey.app/t/433-and-868mhz/45146/1 "2021-03-23T17:17:02Z")
I am amazed by the information here: [https://homey.app/en-us/blog/making-rf-work-433-868-mhz-homey/](https://homey.app/en-us/blog/making-rf-work-433-868-mhz-homey/) However I could never make my Homey to learn and send 433MHz RF/IR commands. The (experimental) function to learn from a physical remote control just never worked for me. To solve that problem, I bought a Broadlink RM4 which works as a charm but unfortunately, it does not support 868MHz frequency. I am now working to automate an internal door with a door driver from Hormann, which works with remote controls that operates at 868MHz, meaning that Broadlink cannot save my life once again. Would be great if somehow I could use an app or virtual device in Homey that would trigger a 868MHz command to my door driver. I see some topics ang GitHub projects about arduino using Homey built-in RF/IR hardware, but that is too much advanced for me, something more end-user friendly would be really appreciated. ---
**Author:** ![Dijker](https://avatars.discourse-cdn.com/v4/letter/d/b9bd4f/32.png) [@Dijker](https://community.homey.app/u/Dijker)\ **Post date:** [March 23, 2021, 5:30pm UTC](https://community.homey.app/t/433-and-868mhz/45146/2 "2021-03-23T17:30:05Z")
> [@Rafael\_Machado](#): > > Hormann AFAIK Hormann uses a [rolling code](https://en.m.wikipedia.org/wiki/Rolling_code) making it very difficult to implement on Homey i think. ---
**Author:** ![Heronimus](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/heronimus/32/3564_2.png) [@Heronimus](https://community.homey.app/u/Heronimus)\ **Post date:** [April 23, 2021, 7:29am UTC](https://community.homey.app/t/433-and-868mhz/45146/3 "2021-04-23T07:29:55Z")
Same problem here. - I have a gate to the parking which listens on Cardin remote at 868.3MHz Whould be great if i can operate it from a flow. - The ventilation at home listens also on this frequency 868.3 MHz. I then can automate the fan speed when someone goes to the toilet or taking a shower. I’m trying to find a device which records the RF signal and can reproduce it via an API trigger. This project maybe does the job, but as @Rafael_Machado mentions it’s a challenge. > **[defcon24bit/record-and-replay-RF-remote - record and replay RF signal](https://github.com/defcon24bit/record-and-replay-RF-remote#record-and-replay-rf-signal)** > > record & replay RF signal with Raspberry Pi & RTL-SDR dongle (optional) integrate with Home Assistant, Alexa and Google Home ---
**Author:** ![Pieterv123](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/pieterv123/32/13353_2.png) [@Pieterv123](https://community.homey.app/u/Pieterv123)\ **Post date:** [April 26, 2021, 1:45pm UTC](https://community.homey.app/t/433-and-868mhz/45146/4 "2021-04-26T13:45:53Z")
Is Athom planning to implement the RF learning functionality? I am trying to decode some signals using the unofficial way ([https://github.com/harriedegroot/Athom-Homey-RF-Signal-Analyzer](https://github.com/harriedegroot/Athom-Homey-RF-Signal-Analyzer)to develop 2 apps, but it is so frustrating to decode the signal that I give up. Maybe I will buy the pro Broadlink, but then I also need to rewrite the broadlink app… It’s a pitty the software can’t cope with the hardware. ---
**Author:** ![robertklep](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/robertklep/32/160628_2.png) [@robertklep](https://community.homey.app/u/robertklep)\ **Post date:** [April 26, 2021, 5:24pm UTC](https://community.homey.app/t/433-and-868mhz/45146/5 "2021-04-26T17:24:08Z")
> [@Pieterv123](#): > > Is Athom planning to implement the RF learning functionality? The community never knows what Athom is planning, but if I were to guess, I would say “no”. ---
**Author:** ![Russell\_S](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/russell_s/32/45779_2.png) [@Russell\_S](https://community.homey.app/u/Russell_S)\ **Post date:** [April 28, 2021, 10:38pm UTC](https://community.homey.app/t/433-and-868mhz/45146/6 "2021-04-28T22:38:28Z")
> [@Pieterv123](#): > > It’s a pitty the software can’t cope with the hardware. Yep, it is a pity… Originally they gave a crazy and absurd reason for purposely not having this feature and purposely would not create it… (crazy I know). A lot of people complained so they flipped and promised they would add it in. That was many years ago now…Nothing … They have plenty of time for Flower sensors, not for this I’m afraid … People have been waiting 5 years for it. Your best bet is to get a Broadlink … ---
**Author:** ![FKey](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/fkey/32/14793_2.png) [@FKey](https://community.homey.app/u/FKey)\ **Post date:** [May 22, 2021, 7:22am UTC](https://community.homey.app/t/433-and-868mhz/45146/7 "2021-05-22T07:22:32Z")
> [@Russell\_S](#): > > Your best bet is to get a Broadlink … Does Broadlink support 868Mhz? Have not read anywhere yet ---
**Author:** ![Russell\_S](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/russell_s/32/45779_2.png) [@Russell\_S](https://community.homey.app/u/Russell_S)\ **Post date:** [May 23, 2021, 1:02am UTC](https://community.homey.app/t/433-and-868mhz/45146/8 "2021-05-23T01:02:06Z")
Unfortunately 868mhz isn’t used very much from what I’ve seen . If Broadlink gear isnt compatible probably the next best thing is to buy a 868mhz USB dongle and a Rasberry Pi and then find a way to make it accesssible… I can’t really think of a plug and play solution I’m afraid. ---
**Author:** ![JPe4619](https://sea1.discourse-cdn.com/flex025/user_avatar/community.homey.app/jpe4619/32/9017_2.png) [@JPe4619](https://community.homey.app/u/JPe4619)\ **Post date:** [May 23, 2021, 12:12pm UTC](https://community.homey.app/t/433-and-868mhz/45146/9 "2021-05-23T12:12:41Z")
Have a look at this: > [@\[HOWTO\] BUVA Boxstream Mechanical ventilation hack](https://community.homey.app/t/howto-buva-boxstream-mechanical-ventilation-hack/7596): > > We own a BUVA Boxstream mechanical ventilation system in our home that i wanted to automate. There is a 0-10V sensor that could be used with a simple 0-10V zigbee, zwave or 433Mhz module but you can’t use the RF module at the same time when using a 0-10V module. my goal wat to have the system automated and at the same time keeping the wall remotes. We had a spare remote laying around that i opened up. [image] While looking for images i noticed some websites dare to ask €100+ for this thing. l…