esphome:
  name: "heltec"

esp32:
  variant: esp32s3
  flash_size: 8MB
  cpu_frequency: 240MHZ
  framework:
    type: esp-idf

logger:
  hardware_uart: UART0

api:

ota:
  platform: esphome

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

# SPI bus for LoRa radio
spi:
  clk_pin: GPIO9
  mosi_pin: GPIO10
  miso_pin: GPIO11

# I2C for OLED display
i2c:
  sda: GPIO17
  scl: GPIO18
  frequency: 400kHz

# FSK Radio Configuration (SX1262)
sx126x:
  dio1_pin: GPIO14
  cs_pin: GPIO8
  busy_pin: GPIO13
  rst_pin: GPIO12
  pa_power: 3
  bandwidth: 78_2kHz
  crc_enable: true
  frequency: 433920000
  modulation: FSK
  rx_start: true
  payload_length: 0
  hw_version: sx1262
  bitrate: 4800
  rf_switch: true
  sync_value: [0x33, 0x33]
  preamble_size: 4
  preamble_detect: 2
  tcxo_voltage: 1_8V
  tcxo_delay: 5ms
  on_packet:
    then:
      - lambda: |-
          ESP_LOGD("fsk", "Packet RSSI: %.2f dBm, SNR: %.2f dB, Data: %s",
                   rssi, snr, format_hex(x).c_str());

button:
  - platform: template
    name: "Send FSK Packet"
    on_press:
      then:
        - sx126x.send_packet:
            data: [0xC5, 0x51, 0x78, 0x82, 0xB7, 0xF9, 0x9C, 0x5C]

# OLED Display

display:
  - platform: ssd1306_i2c
    model: "SSD1306 128x64"
    reset_pin: GPIO21
    address: 0x3C
    lambda: |-
      it.printf(0, 0, id(font1), "Heltec V3");
      it.printf(0, 16, id(font1), "WiFi LoRa 32");
      it.printf(0, 32, id(font1), "%.1f dBm", id(wifi_signal_db).state);

font:
  - file: "gfonts://Roboto"
    id: font1
    size: 14

sensor:
  - platform: wifi_signal
    id: wifi_signal_db
    name: "WiFi Signal"
    update_interval: 60s