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Support for Geekcreit 2 Channel AC 85V-250V APP Remote Control WIFI Wireless Switch Socket For Smart Home #1970

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bvdvoorn opened this Issue Feb 19, 2018 · 10 comments

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@bvdvoorn

bvdvoorn commented Feb 19, 2018

I have tried to load the Tasmota software on the Geekcreit 2 Channel AC 85V-250V APP Remote Control WIFI Wireless Switch Socket https://www.banggood.com/Geekcreit-2-Channel-AC-85V-250V-APP-Remote-Control-WIFI-Wireless-Switch-Socket-For-Smart-Home-p-1114958.html?cur_warehouse=CN.

I used the SonOTA methode and loading did work without any problem. But after finishing the switch is not working and the wifi not connecting.

Any idea what I can do to correct/resolve this?

@arendst

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arendst commented Feb 19, 2018

Find out what GPIO is connected to what button and relay ;-). Then using the Generic module check your findings.

@Jason2866

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Jason2866 commented Feb 20, 2018

What is the advantage of this modul? It is expensiver than a sonoff 2Ch

@bvdvoorn

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bvdvoorn commented Feb 20, 2018

The relay is to be connected to a lower power source. With the sonoff 2Ch the relay and unit are connected to same power source.

@rqsnst

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rqsnst commented Feb 22, 2018

that is an interesting module , did you find out how to configure ?

@bvdvoorn

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bvdvoorn commented Feb 23, 2018

So far no luck, the module is too difficult for me to understand.

Below a picture of both sides. I understand that the 6 hole connector is for if you want to add RF remote control functionality.

img_4668

img_4669

Also log file of the SonOTA load process. The strange thing is that the module doesn't connect to wifi (I tried with the Indebuurt1 network) or publish a wifi network.

debug_1518941633.log

@arendst If you want I can send you the switch, so you can see if you can do anything more with it.

@Jason2866

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Jason2866 commented Feb 25, 2018

@bvdvoorn Some moduls doesnt connect when using a universal build. For example many LED modules needs a preconfigured firmware.... Solder the needed wires and flash "your" firmware. Perhaps all the needed signals are at the 4 hole pin connector. After that you can play as @arendst said.

@stale

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stale bot commented Jun 6, 2018

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

@stale stale bot added the stale label Jun 6, 2018

@KLelong

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KLelong commented Jun 6, 2018

I did some reverse engineering, but I'm stuck.
I successfully could flash tasmota, but it didn't work. So I tried an arduino project (adapted version of telnet to serial). That worked fine.
Working fine means : can connect to my WiFi network and do stuff like outputting and inputting.
Not working means : no connection to the network (I preconfigured SSID and password) and the buttons do nothing interesting.
The chip aside from the 6pin connector is a ULN2003, which inverts 4 pins of the 6pin connector to the ESP8285.
FWIW, these are the pins (square pin = pin1) :
1 = GPIO0
2 = GPIO9
3 = GPIO10
4 = GPIO14
5 = 3V3
6 = GND
Unfortunately, the other chip has no marking. This is the pinout of that chip (J2 is the 4 pin connector) :
1 = ?
2 = ?
3 = Relay
4 = Relay
5 = GPIO10
6 = 3V3
7 = GPIO5
8 = GND
9 = J2-3
10 = J2-2
11 = GPIO9
12 = GPIO4
13 = GPIO0
14 = GPIO15
15 = GPIO12
16 = GPIO14
The LED is connected to GPIO13 (via a resistor).
The left switch is connected to GPIO0, so it could be used for flashing.
Middle switch is connected to GPIO9, right switch connected to 2nd chip pin 10 and pin2 of J2. Pin 1 and 4 of J2 are GND and 3V3 resp.
I suspect that second chip is some serial thing. I looked at some microchip chips, but there a few that have 16 pins ant then their power-pins are in other places. Also some AVR chips don't match.
I was looking for a schematic or photo's of the first version of the Sonoff Dual so I could compare that with this module but I don't find anything.

Any suggestions how to proceed ? I still got 4 modules with the original firmware.
Please remember : the information should be checked, although I did my best the note it down correctly.

@stale stale bot removed the stale label Jun 6, 2018

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stale bot commented Jul 21, 2018

This issue has been automatically marked as stale because it has not had recent activity. It will be closed if no further activity occurs. Thank you for your contributions.

@stale stale bot added the stale label Jul 21, 2018

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stale bot commented Aug 5, 2018

This issue will be auto-closed because there hasn't been any activity for a few months. Feel free to open a new one if you still experience this problem.

@stale stale bot closed this Aug 5, 2018

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