Feature request: Sensor sleep mode

[jonathon-oodar]

First of all, this is a great little flask app/server. Thanks!

This is just a feature request, but since particulate matter sensors have a limited lifespan it'd be nice if the server could put the sensor into sleep mode while it isn't being read (and wake it up maybe 10sec before reading) to allow for longer term use.

You can see here the SDS011 sensor has a laser diode service life of up to 8,000 hours:
https://nettigo.pl/attachments/398

Check out this issue for an example of using sleep mode

[mmaelicke]

Thanks for your feedback.
Yes implementing a sleep mode would be a nice feature. Unfortunately, I am really short on time at the moment and therefore think I will not manage to do so this year. I will leave the issue open anyway and hope to find some time after christmas.

In case anyone else is interested in implementing a sleep mode, that is more than welcome.
In my code, the Sensor class in sensor.py manages the sensor. The referenced issue has also a class defined, therefore I think this is just about bringing the two classes together.
Then the server should pass the measurement interval to the Sensor class and if this is long enough, put it to sleep after reading a new value. Something like that.