Tasmota: Friedland DC55

[gadjet]

Would it be possible to support the Friedland DC55 Wireless door/Window contacts?
I have some of these but I get no response from the sonoff bridge when these are triggered.

Thanks

[curzon01]

Don' think so, looks like it uses a proprietary protocol - see here

[gadjet]

OK, I used these with RFlink running on an Arduino Mega2560 and a raspberry Pi and I could see and use the data.
I suppose I will have to order some different wireless contacts then :-(

[Jason2866]

Maybe not impossible. Take a look at Portisch Github site.
https://github.com/Portisch/RF-Bridge-EFM8BB1
He is the maker of the custom EFM firmware. This Chip is responsible for RF decoding.
Try to sniff with command rfraw 177. Perhaps you get working results!

[Jason2866]

This sensors work well: KERUI D026
You get DIFFERENT codes for open / close / tamper

[gadjet]

Do you know if the ITEAD DW1 sends out different codes?

[gadjet]

I've just ordered a couple of Kerui D026 ..... Then I noticed I'd actually ordered Secrui D026s, let's hope they're the same just a different brand ! they are the same size and same functions

[Jason2866]

DW1 sends only 1 Code -> Open.
I found this one. Like user feedback the send open close too.
https://www.aliexpress.com/item/2pcs-lot-New-Hot-Selling-Wireless-Door-Window-Sensor-Door-Gap-Contact-for-WIFI-GSM-GPRS/32741514329.html?spm=2114.search0204.3.2.74b859d43qTFIq&ws_ab_test=searchweb0_0,searchweb201602_2_10320_10065_10068_5723115_10547_5723715_10548_5723815_5725120_10696_5723215_5723415_10084_5722215_10083_10618_5725020_10304_10307_10820_10821_5990020_10302_5723315_5723615_5724920_5980020_5724120_10843_5722315_5724020_10059_5723015_5722115_5890020_100031_5723915_10319_5724320_10103_5970020_5724220_5722415_5910020-5990020,searchweb201603_54,ppcSwitch_5_ppcChannel&algo_expid=0a0d56ed-1dd4-49e7-8b16-e4e821a8f2eb-0&algo_pvid=0a0d56ed-1dd4-49e7-8b16-e4e821a8f2eb&priceBeautifyAB=0

[Jason2866]

Please give feedback if Secrui D026s sends command for close too.
In Feature list i can see open battery and tamper. Lets hope the just forgot "close".
The look very identical even the manual is the same as from Kerui.
Hopefully the copied it perfect 1:1 in ervery detail :-) The price is promising!

[gadjet]

No problem I'll feedback my findings and thanks for the help

[Jason2866]

Your welcome, please close this issue if it solves your problem. Thank you

[gadjet]

I'll close this issue with the conclusion that the Friedland DC55s are not supported.

[Jason2866]

@gadjet
Does the Secrui D026s send for open close different codes?

[gadjet]

Yes there are codes for open, close and low battery