ESP32C3 version of the P1Reader

esp32-p1reader.yaml

# ESP32C3 (Seeed Studio XIAO) version of the P1 reader
# Look at https://github.com/psvanstrom/esphome-p1reader and get that p1reader.h from there

esphome:
  includes:
    - p1reader.h
  name: esp32-p1reader
  friendly_name: esp32-p1reader
  platformio_options:
    board_build.f_flash: 40000000L
    board_build.flash_mode: dio
    board_build.flash_size: 4MB  
    board_build.extra_flags:
      - "-DARDUINO_USB_CDC_ON_BOOT=0"  


esp32:
  board: seeed_xiao_esp32c3
  variant: ESP32C3
  framework:
    type: arduino

substitutions:
  device_name: esp32_p1reader
  friendly_name: ESP32 p1reader    

# Enable logging
logger:
  level: DEBUG
  baud_rate: 0 # disable logging over uart

# Enable Home Assistant API
api:
  encryption:
    # Generate API-key: https://esphome.io/components/api.html?highlight=randomly%20generated"
    key: ""

ota:
  password: !secret ota_password

wifi:
  ssid: !secret wifi_ssid
  password: !secret wifi_password
# Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Esp32-P1Reader Fallback Hotspot"
    password: "lmQC8tD9B34e"

uart:
  id: uart_bus
  rx_pin:
    number: 20
    inverted: true
  baud_rate: 115200

sensor:
- platform: wifi_signal # Reports the WiFi signal strength/RSSI in dB
  name: "${friendly_name} WiFi Signal dB"
  id: ${device_name}_wifi_signal_db
  update_interval: 60s
  entity_category: "diagnostic"

# Uptime sensor.
- platform: uptime
  name: ${friendly_name} Uptime
  icon: mdi:clock-outline
  id: ${device_name}_uptime
  entity_category: "diagnostic"    

# If your electricity meter is an Aidon, which use the older
# Branschstandard (1.2) where the data is HDLC-formatted
# Change the first line after lambda to
# auto_meter_sensor = new P1ReaderHDLC(id(uart_bus));
# else
# auto meter_sensor = new P1Reader(id(uart_bus));
- platform: custom
  lambda: |-
    auto meter_sensor = new P1Reader(id(uart_bus));
    App.register_component(meter_sensor);
    return {
      meter_sensor->cumulativeActiveImport,
      meter_sensor->cumulativeActiveExport,
      meter_sensor->cumulativeReactiveImport,
      meter_sensor->cumulativeReactiveExport,
      meter_sensor->momentaryActiveImport,
      meter_sensor->momentaryActiveExport,
      meter_sensor->momentaryReactiveImport,
      meter_sensor->momentaryReactiveExport,
      meter_sensor->momentaryActiveImportL1,
      meter_sensor->momentaryActiveExportL1,
      meter_sensor->momentaryActiveImportL2,
      meter_sensor->momentaryActiveExportL2,
      meter_sensor->momentaryActiveImportL3,
      meter_sensor->momentaryActiveExportL3,
      meter_sensor->momentaryReactiveImportL1,
      meter_sensor->momentaryReactiveExportL1,
      meter_sensor->momentaryReactiveImportL2,
      meter_sensor->momentaryReactiveExportL2,
      meter_sensor->momentaryReactiveImportL3,
      meter_sensor->momentaryReactiveExportL3,
      meter_sensor->voltageL1,
      meter_sensor->voltageL2,
      meter_sensor->voltageL3,
      meter_sensor->currentL1,
      meter_sensor->currentL2,
      meter_sensor->currentL3
    };
  sensors:
  - name: "Cumulative Active Import"
    unit_of_measurement: kWh
    accuracy_decimals: 3
    state_class: "total_increasing"
    device_class: "energy"
  - name: "Cumulative Active Export"
    unit_of_measurement: kWh
    accuracy_decimals: 3
    state_class: "total_increasing"
    device_class: "energy"
  - name: "Cumulative Reactive Import"
    unit_of_measurement: kvarh
    accuracy_decimals: 3
  - name: "Cumulative Reactive Export"
    unit_of_measurement: kvarh
    accuracy_decimals: 3
  - name: "Momentary Active Import"
    unit_of_measurement: kW
    accuracy_decimals: 3
  - name: "Momentary Active Export"
    unit_of_measurement: kW
    accuracy_decimals: 3
  - name: "Momentary Reactive Import"
    unit_of_measurement: kvar
    accuracy_decimals: 3
  - name: "Momentary Reactive Export"
    unit_of_measurement: kvar
    accuracy_decimals: 3
  - name: "Momentary Active Import Phase 1"
    unit_of_measurement: kW
    accuracy_decimals: 3
  - name: "Momentary Active Export Phase 1"
    unit_of_measurement: kW
    accuracy_decimals: 3
  - name: "Momentary Active Import Phase 2"
    unit_of_measurement: kW
    accuracy_decimals: 3
  - name: "Momentary Active Export Phase 2"
    unit_of_measurement: kW
    accuracy_decimals: 3
  - name: "Momentary Active Import Phase 3"
    unit_of_measurement: kW
    accuracy_decimals: 3
  - name: "Momentary Active Export Phase 3"
    unit_of_measurement: kW
    accuracy_decimals: 3
  - name: "Momentary Reactive Import Phase 1"
    unit_of_measurement: kvar
    accuracy_decimals: 3
  - name: "Momentary Reactive Export Phase 1"
    unit_of_measurement: kvar
    accuracy_decimals: 3
  - name: "Momentary Reactive Import Phase 2"
    unit_of_measurement: kvar
    accuracy_decimals: 3
  - name: "Momentary Reactive Export Phase 2"
    unit_of_measurement: kvar
    accuracy_decimals: 3
  - name: "Momentary Reactive Import Phase 3"
    unit_of_measurement: kvar
    accuracy_decimals: 3
  - name: "Momentary Reactive Export Phase 3"
    unit_of_measurement: kvar
    accuracy_decimals: 3
  - name: "Voltage Phase 1"
    unit_of_measurement: V
    accuracy_decimals: 3
  - name: "Voltage Phase 2"
    unit_of_measurement: V
    accuracy_decimals: 3
  - name: "Voltage Phase 3"
    unit_of_measurement: V
    accuracy_decimals: 3
  - name: "Current Phase 1"
    unit_of_measurement: A
    accuracy_decimals: 3
  - name: "Current Phase 2"
    unit_of_measurement: A
    accuracy_decimals: 3
  - name: "Current Phase 3"
    unit_of_measurement: A
    accuracy_decimals: 3