uint64 timestamp # time since system start (microseconds) uint64 timestamp_sample uint32 device_id # unique device ID for the sensor that does not change between power cycles float32 sensor_sample_rate_hz float32 resolution_hz float32[4] peak_frequencies_x # x axis peak frequencies float32[4] peak_frequencies_y # y axis peak frequencies float32[4] peak_frequencies_z # z axis peak frequencies float32[4] peak_magnitude_x # x axis peak frequencies magnitude float32[4] peak_magnitude_y # y axis peak frequencies magnitude float32[4] peak_magnitude_z # z axis peak frequencies magnitude float32[3] total_energy