syntax = "proto3";

package meshtastic;

option csharp_namespace = "Meshtastic.Protobufs";
option go_package = "github.com/meshtastic/go/generated";
option java_outer_classname = "TelemetryProtos";
option java_package = "com.geeksville.mesh";
option swift_prefix = "";

/*
 * Key native device metrics such as battery level
 */
message DeviceMetrics {
  /*
   * 0-100 (>100 means powered)
   */
  uint32 battery_level = 1;

  /*
   * Voltage measured
   */
  float voltage = 2;

  /*
   * Utilization for the current channel, including well formed TX, RX and malformed RX (aka noise).
   */
  float channel_utilization = 3;

  /*
   * Percent of airtime for transmission used within the last hour.
   */
  float air_util_tx = 4;
}

/*
 * Weather station or other environmental metrics
 */
message EnvironmentMetrics {
  /*
   * Temperature measured
   */
  float temperature = 1;

  /*
   * Relative humidity percent measured
   */
  float relative_humidity = 2;

  /*
   * Barometric pressure in hPA measured
   */
  float barometric_pressure = 3;

  /*
   * Gas resistance in MOhm measured
   */
  float gas_resistance = 4;

  /*
   * Voltage measured
   */
  float voltage = 5;

  /*
   * Current measured
   */
  float current = 6;
}

/*
 * Air quality metrics
 */
message AirQualityMetrics {
  /*
   * Concentration Units Standard PM1.0
   */
  uint32 pm10_standard = 1;

  /*
   * Concentration Units Standard PM2.5
   */
  uint32 pm25_standard = 2;

  /*
   * Concentration Units Standard PM10.0
   */
  uint32 pm100_standard = 3;

  /*
   * Concentration Units Environmental PM1.0
   */
  uint32 pm10_environmental = 4;

  /*
   * Concentration Units Environmental PM2.5
   */
  uint32 pm25_environmental = 5;

  /*
   * Concentration Units Environmental PM10.0
   */
  uint32 pm100_environmental = 6;

  /*
   * 0.3um Particle Count
   */
  uint32 particles_03um = 7;

  /*
   * 0.5um Particle Count
   */
  uint32 particles_05um = 8;

  /*
   * 1.0um Particle Count
   */
  uint32 particles_10um = 9;

  /*
   * 2.5um Particle Count
   */
  uint32 particles_25um = 10;

  /*
   * 5.0um Particle Count
   */
  uint32 particles_50um = 11;

  /*
   * 10.0um Particle Count
   */
  uint32 particles_100um = 12;
}

/*
 * Types of Measurements the telemetry module is equipped to handle
 */
message Telemetry {
  /*
   * This is usually not sent over the mesh (to save space), but it is sent
   * from the phone so that the local device can set its RTC If it is sent over
   * the mesh (because there are devices on the mesh without GPS), it will only
   * be sent by devices which has a hardware GPS clock (IE Mobile Phone).
   * seconds since 1970
   */
  fixed32 time = 1;

  oneof variant {
    /*
     * Key native device metrics such as battery level
     */
    DeviceMetrics device_metrics = 2;

    /*
     * Weather station or other environmental metrics
     */
    EnvironmentMetrics environment_metrics = 3;

    /*
     * Air quality metrics
     */
    AirQualityMetrics air_quality_metrics = 4;
  }
}

/*
 * Supported I2C Sensors for telemetry in Meshtastic
 */
enum TelemetrySensorType {
  /*
   * No external telemetry sensor explicitly set
   */
  SENSOR_UNSET = 0;

  /*
   * High accuracy temperature, pressure, humidity
   */
  BME280 = 1;

  /*
   * High accuracy temperature, pressure, humidity, and air resistance
   */
  BME680 = 2;

  /*
   * Very high accuracy temperature
   */
  MCP9808 = 3;

  /*
   * Moderate accuracy current and voltage
   */
  INA260 = 4;

  /*
   * Moderate accuracy current and voltage
   */
  INA219 = 5;

  /*
   * High accuracy temperature and pressure
   */
  BMP280 = 6;

  /*
   * High accuracy temperature and humidity
   */
  SHTC3 = 7;

  /*
   * High accuracy pressure
   */
  LPS22 = 8;

  /*
   * 3-Axis magnetic sensor
   */
  QMC6310 = 9;

  /*
   * 6-Axis inertial measurement sensor
   */
  QMI8658 = 10;

  /*
   * 3-Axis magnetic sensor
   */
  QMC5883L = 11;

  /*
   * High accuracy temperature and humidity
   */
  SHT31 = 12;

  /*
   * PM2.5 air quality sensor
   */
  PMSA003I = 13;
}