esphome device updates

esphome/esp-bedrm2ceilingfan.yaml

@@ -153,6 +153,60 @@ logger:
   #esp8266_store_log_strings_in_flash: false
   #tx_buffer_size: 64
 
+##########################################################################################
+# UART: Fan MCU / RF Remote Sniff (iFan02 -> ESP over UART0)
+# - Uses GPIO3 (RX0) to listen to the fan microcontroller frames (433 MHz remote is decoded there)
+# - 9600 8N1 is typical; if no frames appear, try 19200 (uncomment below)
+# - If still nothing, some revisions route MCU TX to another pin; try rx_pin: GPIO13
+##########################################################################################
+uart:
+  id: ifan_uart
+  tx_pin: GPIO1       # ESP TX0 -> Fan MCU RX (not required for sniffing, but harmless)
+  rx_pin: GPIO3       # ESP RX0 <- Fan MCU TX (primary source for RF button frames)
+  baud_rate: 9600
+  #baud_rate: 19200   # <-- try this if you see no frames in logs
+  rx_buffer_size: 256
+  # NOTE: If no frames appear at either 9600 or 19200, try moving rx_pin to GPIO13 and reflash:
+  # rx_pin: GPIO13
+
+##########################################################################################
+# INTERVAL: Accumulate UART bytes and publish last frame to text sensor
+# - Publishes after ~60ms of silence to group a single button press into one frame
+##########################################################################################
+interval:
+  - interval: 50ms
+    then:
+      - lambda: |-
+          static std::string frame;
+          static uint32_t last = 0;
+          uint8_t b;
+          while (id(ifan_uart).available()) {
+            if (id(ifan_uart).read_byte(&b)) {
+              char buf[4];
+              sprintf(buf, "%02X", b);
+              frame += buf;
+              frame += " ";
+              last = millis();
+            } else {
+              break;
+            }
+          }
+          if (!frame.empty() && (millis() - last > 60)) {
+            ESP_LOGI("ifan02", "MCU frame: %s", frame.c_str());
+            id(ifan_last_rf).publish_state(frame.c_str());
+            frame.clear();
+          }
+
+##########################################################################################
+# TEXT SENSORS: RF/MCU debug output (last frame seen)
+# - Shows the last raw hex bytes received from the fan MCU when you press the RF remote
+##########################################################################################
+text_sensor:
+  - platform: template
+    id: ifan_last_rf
+    name: "iFan02 Remote Last Frame"
+    update_interval: never
+
 ##########################################################################################
 # MQTT COMMANDS
 # This adds device-specific MQTT command triggers to the common MQTT configuration.
@@ -371,11 +425,11 @@ fan:
     # whenever the fan goes off→on (e.g. via HA’s Fan switch):
     on_turn_on:
       - lambda: |-
-          // bump 0→1 if we were off
+          // bump 0->1 if we were off
           if (id(speed_value) == 0) id(speed_value) = 1;
       - fan.turn_on:
           id: ifan02_fan
           speed: !lambda 'return id(speed_value);'
       - mqtt.publish:
           topic: "${mqtt_local_status_topic}/speed/state"
-          payload: !lambda 'return to_string(id(speed_value));'
+          payload: !lambda 'return to_string(id(speed_value));'