X-Post: Anyway to control this Tristar A/C via an ESP device?

Hello community! I have a Tristar A/C that I would like to control with an ESP if possible. Linked are some photos of the PCB boards. Before anyone suggests IR, I want a way to detect the states of the a/c unit such as temperature, mode, state etc.

Is there an easy way to link up to the pins CLK,GND,5V for control or is this much harder than I expect?

Thanks in advance!

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