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Hack Sonoff 4CH Pro with firmware MQTT Tasmota, inclusion in Domoticz

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Allen Mercer

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26 February 2018 2 h 55 min

(@Allen Mercer)

Joined: 3 years ago

Noob Question

I purchased my first 4ch Pro (R2) on amazon. I'm attempting to flash Tasmota to integrate with Domoticz to control my door strikes. This will replace my old X10 relays. I think that I have everything figured out, except my 4ch Pro (R2) does not match any online pictures, so I'm not sure where GPIO0 is located. Unlike all of the online pictures, where the board reads, "sonoff_4ch_pro V1.1 2017-4-26", my board reads "sonoff_4ch_pro V1.0 2017-11-10." I also have a long bar for my 433mhz antenna, not the black coil of wire. The ESP8285 is also soldered directly to the board, it's not on the little riser board. Is this just because I have the R2 model? Can I just locate GPIO0 on the chip specs and continue?
Thanks

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Projets DIY

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(@Projets DIY)

Joined: 5 years ago

Posts: 205

26 February 2018 9 h 03 min

Reply to

Allen Mercer

Hi Allen. Yes I saw last week that the new version R2. I looked briefly and it seems to me that the big difference is in the box. Before the terminal block was accessible from the outside. Now it is covered by the box. It must be to comply with the CE or FCC standard, I have not gone further. In my opinion, the tutorial remains valid for the R2 model. Tell me if I'm wrong. Have a good day

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Allen Mercer

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(@Allen Mercer)

Joined: 3 years ago

Posts: 3

26 February 2018 13 h 50 min

Reply to

Projets DIY

Thanks. I will give it a shot then. This is my first one. I will post any helpful comments. The terminal block is still accessible . The flap above it is hinged and can be pulled up for access to the block. Here are some pictures of the new board.

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Projets DIY

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(@Projets DIY)

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Posts: 205

1 March 2018 18 h 54 min

Reply to

Allen Mercer

Thank you very much Allen. Difficult the see the difference. We need to read the documentation to find more.

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Allen Mercer

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(@Allen Mercer)

Joined: 3 years ago

Posts: 3

3 March 2018 22 h 04 min

Reply to

Projets DIY

I tested, and this relay appears to be working. 1) There is a little solder pad to the bottom right of the ESP8285, near R50. It gives easy access to GPIO0. 2) S6 has to be set to Interlocking, not Locking/Inching to enter programming mode for the chip. If it's set the wrong way, two red leds come on. 3) The relays can not be controlled from the web interface, but everything else appears to work. 4) The TX and RX are labeled correctly on this version, so reverse them when you connect your cable. Feel free to let me know if you have any questions, and thanks for the great tutorial. I couldn't have done it without.

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Projets DIY

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(@Projets DIY)

Joined: 5 years ago

Posts: 205

5 March 2018 14 h 45 min

Reply to

Allen Mercer

Thank you very much Allen for all his information. They will be very useful to everyone. I'm glad the tutorial got you started.

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Miles

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21 July 2018 2 h 56 min

(@Miles)

Joined: 3 years ago

Hey,

First of all, thank you for the great tutorial.
But I have one problem, Relai 4 is not working correctly. It turns on and shortly after that back off. All the dip Switches on the Sonoff 4ch Pro are correct. Relai 1-3 are working perfectly with Domoticz. Relai 4 will work when I remove the virtual switch from Domoticz. Any ideas how I can fix that?
Thanks in advanced.

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Projets DIY

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(@Projets DIY)

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Posts: 205

14 August 2018 9 h 15 min

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Miles

Hello Miles and thank you very much. Are you sure you rite the correct Domoticz IDX in the configuration ?

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Julian Gimbel

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7 January 2019 23 h 54 min

(@Julian Gimbel)

Joined: 2 years ago

In Europe the Sonoff Basic and Sonoff 4 Channel Pro Release 2 are available on Amazon with Tasmota flashed already. Basic: https://amzn.to/2BzxsHk and 4 Channel: https://amzn.to/2X35Nr9

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