disable beep, changed: mqtt server, default wifi, enabled captive portal when no freifunk is around, red will double blink, enabled ota, individual node name from env 'co2ampel', bug fixed that would not show ppm

co2sensor.yaml

@@ -1,23 +1,33 @@
+substitutions:
+  node_name: !env_var co2ampel 
 esphome:
-    name: co2_sensor_lab 
+    name: co2ampel_${node_name}
     platform: ESP32
     board: esp32doit-devkit-v1 
     on_boot:
-            - display.page.show: boot
+               - display.page.show: boot
+ota:
+  safe_mode: True
+  password: !secret ota_passwd 
+
 
 logger:
     level: DEBUG
 wifi:
     ssid: !secret wifi_ssid
     password: !secret wifi_passwd
-
+    ap:
+     ssid: "co2ampel"
+     password: ""
+captive_portal:
 mqtt:
-  broker: mqtt.unhb
+  broker: co2.cyber23.de
+  topic_prefix: co2ampel/${node_name}
   birth_message:
-    topic: co2_sensor/status
+    topic: co2ampel/${node_name}/status
     payload: online
   will_message:
-   topic: co2_sensor/status
+   topic: co2ampel/${node_name}/status
    payload: offline
 
 uart:
@@ -45,10 +55,10 @@ sensor:
     automatic_baseline_calibration: true 
     uart_id: uart_mhz19
     temperature:
-      name: "MH-Z19 Temperature"
+      name: ${node_name} Temperature
       id: mhz19_temp
     co2:
-      name: "MH-Z19 CO2"
+      name: ${node_name} PPM
       id: mhz19_co2
       on_value:
        then:
@@ -76,6 +86,7 @@ sensor:
                         red: 50%
                         green: 50%
                         blue: 0%
+                     - display.page.show: co2
                  else:
                          if:
                                  condition:
@@ -89,19 +100,24 @@ sensor:
                                                  red: 100%
                                                  green: 0%
                                                  blue: 0%
-                                         - output.turn_on: buzzer
-                                         - output.ledc.set_frequency:
-                                            id: buzzer
-                                            frequency: "5000Hz"
-                                         - output.set_level:
-                                            id: buzzer
-                                            level: "80%"
+                                       # - output.turn_on: buzzer
+                                       # - output.ledc.set_frequency:
+                                       #    id: buzzer
+                                       #    frequency: "5000Hz"
+                                       # - output.set_level:
+                                       #    id: buzzer
+                                       #    level: "20%"
+                                       # - delay: 10ms
+                                       # - output.turn_off: buzzer
                                          - delay: 500ms
-                                         - output.turn_off: buzzer
+                                         - light.toggle: ws2812
+                                         - delay: 500ms
+                                         - light.toggle: ws2812
                                          - lambda: |-
                                             static int num_executions = 0;
                                             ESP_LOGD("main", "I am at execution number %d", num_executions);
                                             num_executions += 1;
+                                         - display.page.show: co2   
 i2c:
   sda: GPIO21 
   scl: GPIO22