Timestamp on Reading Multi Sensors in Console Log

[Parkpoom]

Hello

I try to use console.log for recording the values from multi-sensors.

eg. 

On addEventListener "reading" of each sensor return a different timestamp.

Even though the time series appears the left can rely on it.

Is there any solution to synchronous timestamps of these values together?

Thank you,

Parkpoom

[Gondwana · Accepted solution]

Sensor timestamps start from an arbitrary value; not necessarily the current time of day. If you need to know the actual time, you could capture it from the Date object. While you could do that for every reading, it would be more efficient to capture it for the first reading, calculate the difference between Date and sensor timestamp, and then use that difference to adjust all subsequent readings. If you're recording data in real-time, you may want to defer that correction until AFTER you've finished recording.

[Parkpoom]

Dear Peter,

Thank you for your helpful guidance.

Best Regards,

Parkpoom

[Parkpoom]

In this post, I would like to share the date time code for each sensor which I use in the reading event. It works for me.

Hope this is useful for developers who may have the same issue.

var isoDateString = new Date().toISOString();

console.log(
`${isoDateString},${gyro.timestamp},Gyroscope Reading:,${gyro.x},${gyro.y},${gyro.z},`
);

Thank you