# ESPHome configuration for the ESP32-C3 CO2 & environment sensor board.
#
# This is the SHARED TEMPLATE. Copy it to esp-sensair.yaml (git-ignored) and keep
# all credentials in secrets.yaml (git-ignored). Never commit real keys.
#
# SPDX-License-Identifier: MIT
# SPDX-FileCopyrightText: 2026 Hannes Gehrmann

esphome:
  name: esp32c3-bme280
  friendly_name: esp32c3-bme280

esp32:
  board: esp32-c3-devkitm-1
  framework:
    type: esp-idf

logger:

api:
  encryption:
    key: !secret api_encryption_key

ota:
  - platform: esphome
    password: !secret ota_password

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

  manual_ip:
    static_ip: !secret static_ip
    gateway: !secret gateway
    subnet: !secret subnet
    dns1: !secret dns1

  # Fallback hotspot if the Wi-Fi connection fails
  ap:
    ssid: "Esp32C3-Bme280 Fallback Hotspot"
    password: !secret ap_password

captive_portal:

# BME280 on I2C - SDA on GPIO7, SCL on GPIO8 (board nets /SDA, /SCL)
i2c:
  sda: GPIO7
  scl: GPIO8
  scan: true

# Sensirion S8 on UART - 9600 baud, 8N1 (board nets /TX, /RX)
uart:
  tx_pin: GPIO21   # ESP32-C3 TX -> S8 RX
  rx_pin: GPIO20   # ESP32-C3 RX <- S8 TX
  baud_rate: 9600

sensor:
  - platform: bme280_i2c
    address: 0x76
    temperature:
      name: "BME280 Temperature"
    pressure:
      name: "BME280 Pressure"
    humidity:
      name: "BME280 Humidity"
    update_interval: 60s

  - platform: senseair
    co2:
      name: "Senseair S8 CO2"
    update_interval: 60s