@type t() :: %PPNet.Message.Ping{
  cpu: float(),
  datetime: DateTime.t(),
  extra: %{optional(String.t()) => any()},
  location: %{lat: float(), lon: float(), accuracy: integer()},
  session_id: String.t(),
  storage: %{total: integer(), used: integer()},
  temperature: float(),
  tpu_memory_percent: integer(),
  tpu_ping_ms: integer(),
  uptime_ms: integer(),
  wifi: [%{mac: String.t(), rssi: integer()}]
}

The PPNet.Message.Ping struct

Fields

• session_id - Session ID
• temperature - CPU/board temperature in Celsius
• uptime_ms - Device uptime in milliseconds
• location - GPS location in WGS 84 (EPSG:4326): lat and lon in decimal degrees, accuracy in meters
• cpu - CPU usage as a float between 0.0 and 1.0
• tpu_memory_percent - TPU memory usage percentage (0-100)
• tpu_ping_ms - TPU round-trip ping time in milliseconds
• wifi - List of visible WiFi networks, each with mac (string) and rssi (integer, dBm)
• storage - Disk usage in kilobytes (KB): total and used
• datetime - Timestamp of the ping message
• extra - Optional arbitrary key/value data