From bea12c00459fe6550aaf87e16eeef6a2ae561046 Mon Sep 17 00:00:00 2001
From: dmr1987 <73853639+dmr1987@users.noreply.github.com>
Date: Sun, 25 Oct 2026 21:19:37 +0300
Subject: [PATCH 1/2] Update __init__.py

New ESPHome generate unique_id with "backslash" delimiter. Added various unique_id templates for ESPHome 2026.10+
---
 custom_components/sat/esphome/__init__.py | 24 +++++++++++++++++++----
 1 file changed, 20 insertions(+), 4 deletions(-)

diff --git a/custom_components/sat/esphome/__init__.py b/custom_components/sat/esphome/__init__.py
index 2212b25e..9de87fe7 100644
--- a/custom_components/sat/esphome/__init__.py
+++ b/custom_components/sat/esphome/__init__.py
@@ -190,11 +190,27 @@ async def async_set_control_max_setpoint(self, value: float) -> None:
         await self._send_command_value(DATA_MAX_CH_SETPOINT, value)
 
         await super().async_set_control_max_setpoint(value)
-
     def _get_entity_id(self, domain: str, key: str):
-        unique_id = f"{self._mac_address.upper()}-{domain}-{key}"
-        _LOGGER.debug(f"Attempting to find the unique_id of {unique_id}")
-        return self._entity_registry.async_get_entity_id(domain, esphome.DOMAIN, unique_id)
+        mac_upper = self._mac_address.upper()
+        mac_lower = self._mac_address.lower()
+    
+        # Try to find different unique_id generated by ESPHome
+        candidates = [
+            f"{mac_upper}-{domain}-{key}",              # Old format
+            f"{mac_upper}/0/{domain}/{key}",            # ESPHome 2026.10 delimiter is backslash
+            f"{mac_upper}/0/{domain}/{key.lower()}",
+            f"{mac_lower}/0/{domain}/{key.lower()}",
+            f"{mac_upper}/0/{domain}/{key.upper()}",
+        ]
+    
+        for unique_id in candidates:
+            entity_id = self._entity_registry.async_get_entity_id(domain, esphome.DOMAIN, unique_id)
+            if entity_id:
+                _LOGGER.info(f"Found {entity_id} with unique_id {unique_id}")
+                return entity_id
+    
+        _LOGGER.warning(f"Could not find entity: domain={domain}, key={key}, mac={self._mac_address}")
+        return None
 
     async def _send_command(self, domain: str, service: str, _key: str, payload: dict):
         """Helper method to send a command to a specified domain and service."""

From e666f456312faae1384fe5da0ed9617c6ad6492d Mon Sep 17 00:00:00 2001
From: dmr1987 <73853639+dmr1987@users.noreply.github.com>
Date: Wed, 28 Oct 2026 02:06:46 +0300
Subject: [PATCH 2/2] Update __init__.py

Resolving AI request
1. Changed .info to .debug in logging
2. Changed description "backslash" to "forward slash"
---
 custom_components/sat/esphome/__init__.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/custom_components/sat/esphome/__init__.py b/custom_components/sat/esphome/__init__.py
index 9de87fe7..a459375c 100644
--- a/custom_components/sat/esphome/__init__.py
+++ b/custom_components/sat/esphome/__init__.py
@@ -197,7 +197,7 @@ def _get_entity_id(self, domain: str, key: str):
         # Try to find different unique_id generated by ESPHome
         candidates = [
             f"{mac_upper}-{domain}-{key}",              # Old format
-            f"{mac_upper}/0/{domain}/{key}",            # ESPHome 2026.10 delimiter is backslash
+            f"{mac_upper}/0/{domain}/{key}",            # ESPHome 2026.10 delimiter is forward slash
             f"{mac_upper}/0/{domain}/{key.lower()}",
             f"{mac_lower}/0/{domain}/{key.lower()}",
             f"{mac_upper}/0/{domain}/{key.upper()}",
@@ -206,7 +206,7 @@ def _get_entity_id(self, domain: str, key: str):
         for unique_id in candidates:
             entity_id = self._entity_registry.async_get_entity_id(domain, esphome.DOMAIN, unique_id)
             if entity_id:
-                _LOGGER.info(f"Found {entity_id} with unique_id {unique_id}")
+                _LOGGER.debug(f"Found {entity_id} with unique_id {unique_id}")
                 return entity_id
     
         _LOGGER.warning(f"Could not find entity: domain={domain}, key={key}, mac={self._mac_address}")