Hardware:

esphome:
  name: lora-remote-station-2
  friendly_name: LoRa Remote Station 2

  on_boot:
     then:
       - delay: 10s
       - wifi.disable:

esp32:
  board: esp32dev
  framework:
    type: arduino

# Enable logging
logger:

# Enable Home Assistant API
api:
  reboot_timeout: 0s
  encryption:
    key: "ZlP4zJUkSzjnR/j+Mopfqh8pBd5SEwb2JmHtmiB7ocE="

ota:
  - platform: esphome
    password: !secret ota_password

wifi:
  ssid: !secret wifi_ssid_iot
  password: !secret wifi_password
  reboot_timeout: 0s

# SPI bus for LoRa radio
spi:
  clk_pin:
    number: GPIO05
    ignore_strapping_warning: true    
  mosi_pin: GPIO27
  miso_pin: GPIO19

# I2C for OLED display
i2c:
  sda: GPIO21
  scl: GPIO22
  frequency: 400kHz

# LoRa Radio Configuration (SX1276/SX1278)
sx127x:
  dio0_pin: GPIO26
  cs_pin: GPIO18
  rst_pin: GPIO14
  pa_pin: BOOST
  pa_power: 17
  bandwidth: 125_0kHz
  preamble_size: 6
  crc_enable: true
  frequency: 868920000
  modulation: LORA
  rx_start: true
  sync_value: 0x12
  spreading_factor: 7
  coding_rate: CR_4_5
  on_packet:
    then:
      - lambda: |-
          ESP_LOGD("lambda", "Packet: %s", format_hex(x).c_str());
          ESP_LOGD("lambda", "RSSI: %.2f dBm", rssi);
          ESP_LOGD("lambda", "SNR: %.2f dB", snr);

# OLED Display
display:
  - platform: ssd1306_i2c
    model: "SSD1306 128x64"
    address: 0x3C
    lambda: |-
      it.printf(0, 0, id(display_font), "LoRa Remote 2");
      it.horizontal_line(0, 16, 128);
      it.printf(0, 20, id(display_font), "R1: %d - R1+: %d - R2: %d", id(relay1).state, id(relay1plus).state, id(relay2).state);

font:
  - file: "gfonts://Roboto"
    id: display_font
    size: 10

switch:
  - platform: gpio
    pin: GPIO04
    inverted: True
    name: Relay 1
    id: relay1
    on_turn_on: 
      - delay: 1s
      - switch.turn_off: relay1

  - platform: template
    name: Relay 1 Plus
    id: relay1plus
    optimistic: True
    turn_on_action:
      - switch.turn_on: relay1
      - delay: 15s
      - switch.turn_on: relay1
      - delay: 1s
      - switch.turn_off: relay1plus

  - platform: gpio
    pin: GPIO13
    inverted: True
    name: Relay 2
    id: relay2
    on_turn_on: 
      - delay: 1s
      - switch.turn_off: relay2

packet_transport:
  platform: sx127x
  update_interval: 1min
  encryption: "My3ncryPt10n"
  rolling_code_enable: False
  binary_sensors:
    - relay1_lora_remote_station_2
    - relay1plus_lora_remote_station_2
    - relay2_lora_remote_station_2

  providers: 
    - name: lora-base-station
      encryption: "My3ncryPt10n"

binary_sensor:
  - platform: packet_transport
    provider: lora-base-station
    id: relay1_lora_base_station
    on_press:
      switch.turn_on: relay1
    on_release:
      switch.turn_off: relay1

  - platform: packet_transport
    provider: lora-base-station
    id: relay1plus_lora_base_station
    on_press:
      switch.turn_on: relay1plus
    on_release:
      switch.turn_off: relay1plus

  - platform: packet_transport
    provider: lora-base-station
    id: relay2_lora_base_station
    on_press:
      switch.turn_on: relay2
    on_release:
      switch.turn_off: relay2

  - platform: packet_transport
    provider: lora-base-station
    id: enable_wifi_lora_base_station
    on_press:
      wifi.enable:
    on_release:
      wifi.disable:

  - platform: template
    id: relay1_lora_remote_station_2
    lambda: return id(relay1).state;

  - platform: template
    id: relay1plus_lora_remote_station_2
    lambda: return id(relay1plus).state;

  - platform: template
    id: relay2_lora_remote_station_2
    lambda: return id(relay2).state;