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Adding multiple buttons to ESPHome YAML
(slrpnk.net)
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I cant test this, but should it be something like:
As for the other thing, that might be something you need to write your own driver for? if you need some inspiration, this repo has a driver for mitsubishi heatpumps, which does something similar (read/write to a uart): https://github.com/echavet/MitsubishiCN105ESPHome
Thank you! This worked perfectly. And thanks for the link, will look into that