I have a Konnected Alarm Panel Pro Interface Kit (purchased 4 years ago) that includes the alarm panel pro and two interface modules. The interface modules expand the 12 zones to 24 zones. My problem is that I only get 12 zones using ESPHome and home assistant. Does anyone know if I can get all 24 zones into Home Assistant or do I have to buy a second alarm panel pro 
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With Home Assistant I am able to get the Pro and two add on modules to show up and work. If you haven’t done so, upgrade the firmware to the new ESP version. That could solve your problem.