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Example code

gio_aggiustatutto
Jun 8th, 2025
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  1. esphome:
  2.   name: smart-watering-system
  3.   friendly_name: Smart Watering System
  4.  
  5. esp32:
  6.   board: esp32dev
  7.   framework:
  8.     type: arduino
  9.  
  10. # Enable logging
  11. logger:
  13. # Enable Home Assistant API
  14. api:
  15.   encryption:
  16.     key: "generated_automatically"
  17.  
  18. ota:
  19.   - platform: esphome
  20.     password: "generated_automatically"
  21.  
  22. wifi:
  23.   ssid: your_wifi_ssid
  24.   password: your_wifi_password
  25.  
  26.   manual_ip:
  27.    # Set this to the IP of the ESP
  28.     static_ip: 192.168.1.253
  29.     # Set this to the IP address of the router. Often ends with .1
  30.     gateway: 192.168.1.1
  31.     # The subnet of the network. 255.255.255.0 works for most home networks.
  32.     subnet: 255.255.255.0
  33.  
  34.   # Enable fallback hotspot (captive portal) in case wifi connection fails
  35.   ap:
  36.     ssid: "Smart-Watering-System"
  37.     password: "generated_automatically"
  38.  
  39. captive_portal:
  41. switch:
  42.   - platform: gpio
  43.     pin: GPIO16
  44.     name: "Water pump"
  45.     id: water_pump
  46.     on_turn_on:
  47.       then:
  48.         - if:
  49.             condition:
  50.               - binary_sensor.is_on: water_level_ok
  51.             then:
  52.               - light.turn_on: blue_led
  53.             else:
  54.               - delay: 1s
  55.               - switch.turn_off: water_pump      
  56.     on_turn_off:
  57.       then:
  58.         - if:
  59.             condition:
  60.               - binary_sensor.is_on: water_level_ok
  61.             then:
  62.               - light.turn_off: blue_led
  63.  
  64. button:
  65.   - platform: template
  66.     name: Start Watering
  67.     id: button_start
  68.     icon: "mdi:power-on"
  69.     on_press:
  70.       then:
  71.         - if:
  72.             condition:
  73.               - binary_sensor.is_on: water_level_ok
  74.             then:
  75.               - switch.turn_on: water_pump
  76.               - delay: !lambda "return id(watering_time).state*60*1000;"
  77.               - switch.turn_off: water_pump
  78.             else:
  79.               - switch.turn_off: water_pump
  80.  
  81.   - platform: template
  82.     name: Stop Watering
  83.     id: button_stop
  84.     icon: "mdi:power-off"
  85.     on_press:
  86.       then:
  87.         - switch.turn_off: water_pump
  88.      
  89.  
  90. number:
  91.   - platform: template
  92.     name: Full Distance
  93.     icon: mdi:arrow-collapse-vertical
  94.     entity_category: config
  95.     id: full_distance_m
  96.     min_value: 0.01
  97.     max_value: 1.50
  98.     initial_value: 0.1
  99.     optimistic: true
  100.     step: 0.01
  101.     restore_value: true
  102.     unit_of_measurement: meters
  103.     mode: box
  104.  
  105.   - platform: template
  106.     name: Empty Distance
  107.     icon: mdi:arrow-expand-vertical
  108.     entity_category: config
  109.     id: empty_distance_m
  110.     min_value: 0.01
  111.     max_value: 1.50
  112.     initial_value: 0.1
  113.     optimistic: true
  114.     step: 0.01
  115.     restore_value: true
  116.     unit_of_measurement: meters
  117.     mode: box
  118.  
  119.   - platform: template
  120.     name: Safe Level Distance
  121.     icon: mdi:arrow-expand-vertical
  122.     entity_category: config
  123.     id: safe_distance_m
  124.     min_value: 0.01
  125.     max_value: 1.50
  126.     initial_value: 0.1
  127.     optimistic: true
  128.     step: 0.01
  129.     restore_value: true
  130.     unit_of_measurement: meters
  131.     mode: box
  132.  
  133.   - platform: template
  134.     name: Watering Time
  135.     icon: mdi:clock-edit
  136.     id: watering_time
  137.     min_value: 1
  138.     max_value: 60
  139.     initial_value: 10
  140.     optimistic: true
  141.     step: 1
  142.     restore_value: true
  143.     unit_of_measurement: minutes
  144.     mode: box
  145.  
  146. output:
  147.   - platform: gpio
  148.     pin: GPIO26
  149.     id: red_led_output
  150.   - platform: gpio
  151.     pin: GPIO23
  152.     id: yellow_led_1_output
  153.   - platform: gpio
  154.     pin: GPIO18
  155.     id: yellow_led_2_output
  156.   - platform: gpio
  157.     pin: GPIO19
  158.     id: green_led_output
  159.   - platform: gpio
  160.     pin: GPIO27
  161.     id: blue_led_output
  162.  
  163. light:
  164.   - platform: binary
  165.     name: "Red LED"
  166.     id: red_led
  167.     disabled_by_default: True
  168.     output: red_led_output
  169.     internal: False
  170.     restore_mode: RESTORE_DEFAULT_OFF
  171.     effects:
  172.       - strobe:
  173.           name: Blink
  174.           colors:
  175.             - state: true
  176.               brightness: 100%
  177.               duration: 500ms
  178.             - state: false
  179.               duration: 500ms
  180.   - platform: binary
  181.     name: "Yellow LED 1"
  182.     id: yellow_led_1
  183.     disabled_by_default: True
  184.     output: yellow_led_1_output
  185.     restore_mode: RESTORE_DEFAULT_OFF
  186.   - platform: binary
  187.     name: "Yellow LED 2"
  188.     id: yellow_led_2
  189.     disabled_by_default: True
  190.     output: yellow_led_2_output
  191.     restore_mode: RESTORE_DEFAULT_OFF
  192.   - platform: binary
  193.     name: "Green LED"
  194.     id: green_led
  195.     disabled_by_default: True
  196.     output: green_led_output
  197.     restore_mode: RESTORE_DEFAULT_OFF
  198.   - platform: binary
  199.     name: "Blue LED"
  200.     id: blue_led
  201.     disabled_by_default: True
  202.     output: blue_led_output
  203.     effects:
  204.       - strobe:
  205.           name: Double Blink
  206.           colors:
  207.             - state: true
  208.               brightness: 100%
  209.               duration: 150ms
  210.             - state: false
  211.               duration: 200ms
  212.             - state: true
  213.               brightness: 100%
  214.               duration: 150ms
  215.             - state: false
  216.               duration: 500ms
  217.  
  218. binary_sensor:
  219.   - platform: gpio
  220.     pin:
  221.       number: GPIO33
  222.       mode:
  223.         input: true
  224.         pullup: true
  225.       inverted: true
  226.     name: "Pushbutton"
  227.     id: start_button
  228.     filters:
  229.       - delayed_on: 100ms
  230.     on_press:
  231.       then:
  232.         - if:
  233.             condition:
  234.               - switch.is_off: water_pump
  235.             then:
  236.               - button.press: button_start
  237.               - delay: 1s
  238.             else:
  239.               - button.press: button_stop
  240.               - delay: 1s
  241.        
  242.  
  243.   - platform: template
  244.     name: "Water Level OK"
  245.     id: water_level_ok
  246.     lambda: |-
  247.       if (id(ultrasonic_sensor_distance).state < id(safe_distance_m).state) {
  248.         //there is enough water
  249.         return true;
  250.       } else {
  251.         //there is not enough water
  252.         return false;
  253.       }
  254.     on_state:
  255.       then:
  256.         - lambda: |-
  257.             if (x == false) {
  258.               id(blue_led).turn_on().set_effect("Double Blink").perform();
  259.               id(water_pump).turn_off();
  260.             } else {
  261.               //do nothing
  262.             }
  263.     on_press:
  264.       then:
  265.         - light.turn_off: blue_led
  266.        
  267.   - platform: template
  268.     name: "Pump Status"
  269.     id: pump_status
  270.     device_class: running
  271.     lambda: |-
  272.       return id(water_pump).state;
  273.  
  274. sensor:
  275.   - platform: ultrasonic
  276.     trigger_pin: GPIO22
  277.     echo_pin: GPIO21
  278.     name: "Level Sensor Distance"
  279.     id: ultrasonic_sensor_distance
  280.     device_class: distance
  281.     update_interval: 1s
  282.     pulse_time: 10us
  283.     timeout: 20m
  284.     filters:
  285.       - sliding_window_moving_average:
  286.           window_size: 15
  287.           send_every: 15
  288.  
  289.   - platform: template
  290.     name: "Water Level"
  291.     id: water_level
  292.     lambda: |-
  293.         return id(ultrasonic_sensor_distance).state;
  294.     update_interval: 1s
  295.     accuracy_decimals: 0
  296.     unit_of_measurement: "%"
  297.     filters:
  298.       - lambda: return ((100 - 0)/(id(full_distance_m).state - id(empty_distance_m).state)) * x + (100 - (((100 - 0)/(id(full_distance_m).state - id(empty_distance_m).state)) * id(full_distance_m).state));
  299.       - clamp:
  300.           min_value: 0
  301.           max_value: 100
  302.           ignore_out_of_range: false
  303.     on_value_range:
  304.       - below: 20
  305.         then:
  306.           - light.turn_off: green_led
  307.           - light.turn_off: yellow_led_1
  308.           - light.turn_off: yellow_led_2
  309.           - light.turn_on:
  310.               id: red_led
  311.               effect: Blink          
  312.       - above: 20
  313.         then:
  314.           - light.turn_on:
  315.               id: red_led
  316.               effect: None
  317.       - below: 40
  318.         then:
  319.           - light.turn_off: green_led
  320.           - light.turn_off: yellow_led_1
  321.           - light.turn_off: yellow_led_2
  322.       - above: 40
  323.         then:
  324.           - light.turn_on:
  325.               id: red_led
  326.               effect: None
  327.           - light.turn_on: yellow_led_1
  328.       - below: 60
  329.         then:
  330.           - light.turn_off: yellow_led_2
  331.           - light.turn_off: green_led
  332.       - above: 60
  333.         then:
  334.           - light.turn_on:
  335.               id: red_led
  336.               effect: None
  337.           - light.turn_on: yellow_led_1
  338.           - light.turn_on: yellow_led_2
  339.       - below: 80
  340.         then:
  341.           - light.turn_off: green_led
  342.  
  343.       - above: 80
  344.         then:
  345.           - light.turn_on:
  346.               id: red_led
  347.               effect: None
  348.           - light.turn_on: yellow_led_1
  349.           - light.turn_on: yellow_led_2
  350.           - light.turn_on: green_led
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