water_dispenser.yaml

# https://www.instructables.com/H-Bridge-Motor-Driver-for-Arduino-Using-Transistor/
# https://www.modularcircuits.com/blog/articles/h-bridge-secrets/h-bridges-the-basics/



substitutions:
  devicename: water_dispenser
  upper_devicename: water dispenser

globals:
  - id: water_amount
    type: double
    initial_value: '0.0'
    restore_value: no
  - id: last_pulse_count_total
    type: int
    initial_value: '0'
    restore_value: no


sensor:
  - platform: pulse_counter
    pin: GPIO4
    id: flow_meter
    update_interval: 100ms
    unit_of_measurement: "ml/sec"
    total:
      id: total_pulses
      filters:
        - lambda: |-
            id(water_amount) = (x - id(last_pulse_count_total)) * id(ml_per_pulse).state;
            id(pulses_display).publish_state(x - id(last_pulse_count_total));
            id(water_amount_display).publish_state(id(water_amount));
            if (id(water_amount) > id(quantity).state)  {
              id(valve).turn_off();
            }
            return x;

  - platform: template
    id: water_amount_display
    name: "Water amount" 
    unit_of_measurement: "ml"

  - platform: template
    id: pulses_display
    name: "Pulses" 

switch:

  - platform: template
    name: Valve
    id: valve
    optimistic: true
    on_turn_on:
      - lambda: |-
          id(valve_open).turn_on();
          id(last_pulse_count_total) = id(total_pulses).state;
          id(water_amount) = 0.0;
          id(water_amount_display).publish_state(id(water_amount));
      - delay: 30ms
      - output.turn_off: valve_open
    on_turn_off:
      - output.turn_on: valve_close
      - delay: 30ms
      - output.turn_off: valve_close

output:
  - platform: gpio
    pin: 16
    id: valve_open

  - platform: gpio
    pin: 17
    id: valve_close

binary_sensor:
  - platform: gpio
    name: button1
    pin:
      number: 32
      inverted: true
      mode:
        input: true
        pullup: true
    filters:
      - delayed_on: 10ms  
    
    on_click:
      then:
        - switch.turn_on: valve
        
number:
  - platform: template
    name: Dispense Quantity
    id: quantity
    min_value: 0
    max_value: 2000
    initial_value: 10
    step: 5
    optimistic: true

  - platform: template
    name: Calibration (Ml/pulse)
    min_value: 0.45
    max_value: 1.2
    step: 0.001
    id: ml_per_pulse
    initial_value: .576
    optimistic: true
 

<<: !include base_charles.yaml