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[red-gee]

Could you please give me more information about, how to connect. which pin do you use. Could you please give me an example of the mqtt message you send?

[tinwhisker]

@red-gee Sure, I'll update the project shortly.

I haven't added mqtt support just yet, as I'm time limited atm.

The pins used on the control panel are 5v, gnd, data, clk, latch (typical shift register wiring).

The code decodes the data or writes back with shifted keypresses.

[red-gee]

Thank you for your reply, but one little more question, which pin do you use on the ESP?

[LangeJan87]

Based on the code I would say

const int CLK = 13; const int LAT = 12; const int DAT = 14;

[tinwhisker]

IIRC, there's no specific requirement for these pins, as long as the CLK and LAT pins are interrupt capable,

DAT needs to be a bi-directional pin, as you would need to pull it high during write-back. DAT will likely need to be level shifted too to allow write-back.

(I think all pins are fine, except pin 16 as that's routed via the RTC)

[Eddine97]

Hi, a made a simple prototype that would fit inside the panel box, thus some waterproofness is still needed.

[red-gee]

here are some Pictures of my PCB, its an SaltwaterPool from Intex maybe you could use it

![Uploading IMG_3372.jpeg…]