Information: IR protocoll reverse-engineered

[pascaltippelt]

I reverse-eingneered the IR-protocoll for the stoves bases on the duepi evo line. Maybe we should cross-reference each other to help searching users.

Wamsler-IR-Remote

[aceindy]

Awesome work dude..

Not sure if I can use any of it though...as serial uses commands with reply (2 way communication).

I just acquired a serial2wifi module myself as the reverse engineered code from the French guy is incomplete...
Hope I can extract the missing data soon 🥼

[pascaltippelt]

The WiFi-Module ist ESP8266-based, at least the one I had in my hands. Maybe you can extract a firmware. If so, I would really be interested in a firmware dump, to analyze it.

[aceindy]

@pascaltippelt I’ll try to have a look (there is just one thing i lack....time to do it 🤔)

[pascaltippelt]

A Firmware dump, maybe done by ESP Tools, could help, as we both could work on it!

But yes, I do understand your time related problem.

[aceindy]

@pascaltippelt
Hmm...just opened the unit to have a peek..
It doesn't look like it uses ESP8266 based, but Motorola RN1723-I/RM
Not sure if I can dump the firmware as easily as ESP....

[pascaltippelt]

Interesting! So there are at least 2 models around. Could you send me a picture of the pcb?

Does your WiFi module look like this one:

[pascaltippelt]

//EDIT I saw you already knew...

[aceindy]

@pascaltippelt
Yea, outside looks the same
this is how it looks inside:

[pascaltippelt]

Oh wow, definetely a complete different pcb. Mine was way more complex, and contained of cause a different microcontroller. Hope you are successfull!

[pascaltippelt]

Coult you point out wich pin is 5V, TX, RX, GND? Maybe at the PCB and at the end of the wire (4-pin-connector to stove)? Would be great!

[aceindy]

1 = White ground
2 = Orange RX
3 = Red TX
4 = Violet +5Volt

Stove pin layout of evo board (J8) is in the pdf 😉

PS I just found out an ordinary ESPLink serial2wifi works fine with the duepi app 🤣
So basically, the wifi module is nothing more than a serial to wifi bridge with a stand alone wifi controller + dhcp server embedded 😉

[pascaltippelt]

I expected something like that.

I am currently working on a ESP-01S based as simple as possible solution to connect to the stove (via serial). At the moment there are only 2 NPN transistors, a line voltage regulator and some resistors and capacitors required. I will update my work as soon as I have anything new to tell.

[aceindy]

Got mine from banggood 😉
Programmed it with ESPLink and hooked it up.

[pascaltippelt]

Exactly. But I need some more IO, so I develop myself ;-)

[pascaltippelt]

I just first time successfully turned the stove off by telnet, using my own adapter board. Works quite well.

I can now confirm this is working on a "WAMSLER WESTMINSTER QUATTRO 6"!

[aceindy]

i opened a telegram channel, that is probably easier to talk 😉
https://t.me/duepievo