Sonoff RF Bridge, A6 sniffing does nothing

[Fettkeewl]

Latest firmware used?

Keil 8051 V9.53 Tasmota 8.0.1

Information

Sonoff RF Bridge

Sniffed data

None......... thats the issue, read on.

Setup

1 Sonoff Bridge 4 Sonoff DW1 door/window sensors 2 Random 433 mhz thermometers (noname, looks like Digoo DG-TH8380, 3 channel temp/RF) 1 433 mhz doorbell

Operational modes and results

• Mode: RfRaw 0 (normal)

  1. Picks up and decodes signals from DW1
  2. Nothing else, as expected, other devices do not follow standard protocol.

• Mode: RfRaw 1 (Portisch enabled)

  1. Picks up and decodes signals from DW1 (presented in another format)
  2. Nothing else is picked up that is on 433 Mhz,

• Mode: RfRaw 166 / AAA655

  1. Nothing is picked up .... not even the DW1

• Mode: RfRaw 177 / AAB155

  1. Everything is picked up in some way or another

To the issue...

Why is A6 advanced mode not doing anything? I mean I've read the Wiki it states: A6 advanced sniffing by predefined protocols in RF_Protocols.h Looking at RF_Protocols.h the Sonoff original protocol is supported? As per the comment copied below

/*
 * PT2260, EV1527,... original RF bridge protocol
 * http://www.princeton.com.tw/Portals/0/Product/PT2260_4.pdf
 */

So at the very least mode A6/166 should pickup the same data that mode 1 does. What gives?

[Fettkeewl]

@Portisch would you mind responding? :)

[hongtat]

Rfraw 0 (normal) "RfReceived":{"Sync":11080,"Low":410,"High":1020,"Data":"603E1F","RfKey":"None"}}

RfRaw 1 (same as A4) "RfRaw":{"Data":"AAA42B48019A03E8603E1F55"}}

RfRaw 166 (A6) The PT226X protocol defined in A6 is using a fixed "Sync" of 10850, so it won't capture sync time that is not 10850 (+-). The standard Rfraw 0 (or rfraw 1 / A4) uses a dynamic "Sync" range.

If you have devices that use the standard protocol and non-standard protocol, then A6 will not work (if you are trying to capture the state). I'm not sure why A6 cannot use dynamic range..

See - https://github.com/Portisch/RF-Bridge-EFM8BB1/issues/125#issuecomment-505404568