feat/captor data periodic flux

[RyanIkhlef]

Live data transmission mode replaced by a periodic data transmission mode.

1. Every 5 minutes, we ask to the sensor to give us the data collected.
2. Computes average value of these data.
3. Deletes old data (to avoid reading data already collected).

Warning: during the time between step 2 and 3 we can loose 1 or 2 seconds of data.

[Alystrasz]

Current UI is adapted to live data transmission, not at all to periodic transmission:

• on first connection, application displays "waiting for data" while it's downloading history from sensor;
• once history download is done, indicators appear on screen, but they don't move (since there's no live data reception)

I feel like user should have the choice between live and periodic transmission; I'm open to chat about this.

[Alystrasz]

It seems that data is not sent to grafana correctly.

[RyanIkhlef]

It seems that data is not sent to grafana correctly.

I don't have this problem, my data are sent to my influxDB :

my db :

[RyanIkhlef]

Current UI is adapted to live data transmission, not at all to periodic transmission:

* on first connection, application displays "waiting for data" while it's downloading history from sensor;

* once history download is done, indicators appear on screen, but they don't move (since there's no live data reception)

I feel like user should have the choice between live and periodic transmission; I'm open to chat about this.

I'm agree with this, I think we can add a button in settings view to change the transmission mode.
But I don't know how to represents fixed data from periodic mode ?

[Alystrasz]

I don't have this problem, my data are sent to my influxDB :

Are you using same influxDB version as Apolline backend: https://github.com/Apolline-Lille/apolline-backend-ng ?

But I don't know how to represents fixed data from periodic mode ?

To begin, we can display last data point on screen; we should display a message that tells that we're waiting X minutes to sync with sensor, so that people do not think the app crashed.

[RyanIkhlef]

Are you using same influxDB version as Apolline backend: https://github.com/Apolline-Lille/apolline-backend-ng ?

Yes I am using it and I didn't change anything from the docker image.

To begin, we can display last data point on screen; we should display a message that tells that we're waiting X minutes to sync with sensor, so that people do not think the app crashed.

I see, I'll try to do this.

[RyanIkhlef]

Here some screenshots of the new feature:

The button to switch between live data transmission and periodic data transmission in the settings view:

The data view when the app get data periodically: