How to Export accelerometer data to .csv?

Question/Issue: How do I export accelorometer data to csv?

**Project ID:**177354

Context/Use case:
When I export the data it exports it into testing, traininig folders and a label file which has the labels.
I tried using the ei_json_to.csv.ipynb script but it did not work.
Data was exported into .cbor format.

Hello @amits,

I’m checking internally if we have a script to convert CBOR to CSV.
I’m also creating a feature request to be able to choose the export format but not sure when/if this will be implemented.

If we don’t have a script already, I’ll write one early next week.



Hello you can watch the video @shawn_edgeimpulse this describes how to collect accelerometer data in .csv I think this will help .

Hello @amits,

Here you go, feel free to modify it if needed to apply that at the folder level, I just wrote the example for a single file. It saves the csv file in the same folder with the same name as your cbor.

Save the following snippet in a script and run:

python3 -m pip install cbor2
python3 your-file.cbor
#!/usr/bin/env python3
import cbor2
import sys
import csv
import os

with open(sys.argv[1], 'rb') as f:
    # Load the cbor file
    obj = cbor2.load(f)

    # Get the filename without extension
    label = os.path.splitext(sys.argv[1])[0]
    filename = str(label) + ".csv"

    with open(filename, 'w') as csv_file:
        writer = csv.writer(csv_file)
        # uncomment to add a fixed header
        # writer.writerow(['x','temp [degC]','press [kPa]','hum [%]','gas res [MOhm]'])
        # or use this to read the values from edge impulse exported cbor files
        header = []
        header.insert(0, "timestamp")
        for sensor in obj['payload']['sensors']:

        timestamp = 0
        for val in obj['payload']['values']:
            val.insert(0, timestamp)
            timestamp += int(obj['payload']['interval_ms'])

# python3 -m pip install cbor2
# python3 your-file.cbor



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