actron-keypad2.yaml

#BCK - this version has been adopted to use built in DAC of ESP32 no external DAC required.
esphome:
  name: actron-keypad2
  friendly_name: Actron Keypad2

  includes:
    - led_proto2.h

esp32:
  board: m5stack-core-esp32
  framework:
    type: arduino

# Enable logging
logger:
  level: DEBUG #INFO

# Enable Home Assistant API
api:
  encryption:
    key: !secret esphome_api_key

ota:
  password: !secret esphome_ota_password

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Aircon-Keypad Fallback Hotspot"
    password: "M3odvzX6U8gI"

captive_portal:

web_server:
  port: 80



#Setup i2c bus to control MCP4725
#https://esphome.io/components/i2c#i2c
#i2c:
#  sda: 25
#  scl: 21
#  scan: true

#MCP4725 output to Send Voltages for key presses 
#https://esphome.io/components/output/mcp4725
output:
  - platform: esp32_dac #mcp4725
    id: dac_output
    pin: GPIO25
    #address: 0x62


##***TESTING***
# Define a number input component to output mV to the DAC
number:
  - platform: template
    name: "DAC Output miliVolts"
    min_value: 0
    max_value: 3240  # Adjust this value according to the DAC's range
    step: 1    # Adjust the step size as needed
    restore_value: true
    optimistic: true
    on_value:
      then:
        lambda: |-
          id(dac_output).set_level((x / 3240.0));
###############################################################

#Voltages adjusted for ESP32 DAC 3.3V output
button:
  - platform: template
    name: "Power"
    icon: mdi:power
    on_press:
      - logger.log: Power Button Pressed
      - lambda: |-
          id(dac_output).set_level((3000.0 / 3240.0));
      - delay: 800ms
      - lambda: |-
          id(dac_output).set_level((0.0 / 3240.0));

  - platform: template
    name: "Fan"
    icon: mdi:fan
    on_press:
      - logger.log: Fan Button Pressed
      - lambda: |-
          id(dac_output).set_level((686.0 / 3240.0));
      - delay: 800ms
      - lambda: |-
          id(dac_output).set_level((0.0 / 3240.0));

  - platform: template
    name: "Temp Up"
    icon: mdi:thermometer-plus
    on_press:
      - logger.log: Temp Up Button Pressed
      - lambda: |-
          id(dac_output).set_level((813.0/ 3240.0));
      - delay: 800ms
      - lambda: |-
          id(dac_output).set_level((0.0 / 3240.0));

  - platform: template
    name: "Temp Down"
    icon: mdi:thermometer-minus
    on_press:
      - logger.log: Temp Down Button Pressed
      - lambda: |-
          id(dac_output).set_level((711.0/ 3240.0));
      - delay: 800ms
      - lambda: |-
          id(dac_output).set_level((0.0 / 3240.0));


  - platform: template
    name: "Mode"
    icon: mdi:air-conditioner
    on_press:
      - logger.log: Mode Button Pressed
      - lambda: |-
          id(dac_output).set_level((889.0/ 3240.0));
      - delay: 800ms
      - lambda: |-
          id(dac_output).set_level((0.0 / 3240.0));

  - platform: template
    name: "Timer"
    icon: mdi:timer
    on_press:
      - logger.log: Timer Button Pressed
      - lambda: |-
          id(dac_output).set_level((780.0/ 3240.0));
      - delay: 800ms
      - lambda: |-
          id(dac_output).set_level((0.0 / 3240.0));

  - platform: template
    name: "Timer Up"
    icon: mdi:timer-plus
    on_press:
      - logger.log: Timer Up Button Pressed
      - lambda: |-
          id(dac_output).set_level((750.0/ 3240.0));
      - delay: 800ms
      - lambda: |-
          id(dac_output).set_level((0.0 / 3240.0));

  - platform: template
    name: "Timer Down"
    icon: mdi:timer-minus
    on_press:
      - logger.log: Timer Down Button Pressed
      - lambda: |-
          id(dac_output).set_level((725.0/ 3240.0));
      - delay: 800ms
      - lambda: |-
          id(dac_output).set_level((0.0 / 3240.0));


#Template sensors will be populated from lambda custom component
sensor:
  - platform: template
    name: "Setpoint Temperature"
    unit_of_measurement: "°C" 
    accuracy_decimals: 1     
    id: setpoint_temp
    state_class: measurement
    icon: mdi:thermometer
  
  - platform: template
    name: "Bit Count"
    id: bit_count
    state_class: measurement
    accuracy_decimals: 0
    
text_sensor:
  - platform: template
    name: "Bit String"
    id: bit_string

binary_sensor:
  - platform: template
    name: "Cool"
    icon: mdi:snowflake
    id: cool
  - platform: template
    name: "Auto"
    icon: mdi:flash-auto
    id: auto_md
  - platform: template
    name: "unk1"
    id: unk1
  - platform: template
    name: "Run"
    icon: mdi:run
    id: run
  - platform: template
    name: "Room"
    id: room
  - platform: template
    name: "unk2"
    id: unk2
  - platform: template
    name: "unk3"
    id: unk3
  - platform: template
    name: "unk4"
    id: unk4
  - platform: template
    name: "Fan Continuos"
    icon: mdi:fan-chevron-up
    id: fan_cont
  - platform: template
    name: "Fan Hi"
    icon: mdi:fan-speed-3
    id: fan_hi
  - platform: template
    name: "Fan Mid"
    icon: mdi:fan-speed-2
    id: fan_mid
  - platform: template
    name: "Fan Low"
    icon: mdi:fan-speed-1
    id: fan_low
  - platform: template
    name: "Room3"
    id: room3
  - platform: template
    name: "Room4"
    id: room4
  - platform: template
    name: "Room2"
    id: room2
  - platform: template
    name: "Heat"
    icon: mdi:fire
    id: heat
  - platform: template
    name: "Room1"
    id: room1
  - platform: template
    name: "unk5"
    id: unk5

#Populate all template sensors from lambda custom component
#First argument of KeypadStatus is the pin number of the ADC input
custom_component:
  - lambda: |-
      auto keypad_status = new KeypadStatus(33,
                                            id(bit_string), id(setpoint_temp), id(bit_count),  
                                            id(cool), id(auto_md), id(unk1), id(run), 
                                            id(room), id(unk2), id(unk3), id(unk4), 
                                            id(fan_cont), id(fan_hi), id(fan_mid), id(fan_low), 
                                            id(room3), id(room4), id(room2), id(heat), 
                                            id(room1), id(unk5)
                                            );
      return {keypad_status};
    components:
      id: keypad_status