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EV1527

 
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cvargcal



Joined: 17 Feb 2015
Posts: 134

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EV1527
PostPosted: Fri Sep 20, 2019 11:26 am     Reply with quote

Hi, someone has a example for decode 1527 from module 433MHz ?
I need to connect sensors with this protocol to my project.


Thanks in advance
Ttelmah



Joined: 11 Mar 2010
Posts: 19496

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PostPosted: Fri Sep 20, 2019 11:56 am     Reply with quote

You are going to have to decode pulse widths with probably the CCP.
The protocol uses a pulse with of 1/4 the cycle time as a '0', and 3/4
as a '1'. It starts with a '0'. then 20 bits that give the serial number of
the device, then 4 bits that represent the four possible buttons.
There have been code examples posted for such pulse width
protocols posted here, so with some adjustments to the timings
involved, one of these could be modified to extract the sequence.
cvargcal



Joined: 17 Feb 2015
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PostPosted: Sun Sep 22, 2019 3:07 pm     Reply with quote

Ttelmah wrote:
...

yes thanks,

I see this is the info.
https://tinkerman.cat/post/decoding-433mhz-rf-data-from-wireless-switches-the-data

But i dont know how start
dyeatman



Joined: 06 Sep 2003
Posts: 1933
Location: Norman, OK

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PostPosted: Sun Sep 22, 2019 4:06 pm     Reply with quote

Apparently the devices use ASK modulation.

Try this post to start:
https://www.ccsinfo.com/forum/viewtopic.php?t=57395
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