Heating time showing wrong data about nest-datagraph HOT 4 CLOSED

Hi @shaman79,

I'll check this issue and keep you in touch.
Thanks,

Guillaume

from nest-datagraph.

Hi @gchenuet, can it be that the problem is caused by different sampling period? I am polling every 5 minutes, not every hour as suggested in install procedure. Thanks.

from nest-datagraph.

This is due to the 24 hour polling period being assumed in the PHP files such as getHeat.php and getPresence.php

Example line of code is

$sql_array["rows"][] = array("c" => array(array("v" => $date_array), array("v" => intval($row["auto_away"])), array("v" => (24 - $row["auto_away"]))));

which if you are polling every 5 minutes like myself and @shaman79 shaman79 are then you need to divide $row["auto_away"] by 12 so it turns into

$sql_array["rows"][] = array("c" => array(array("v" => $date_array), array("v" => round($row["auto_away"] / 12, 2)), array("v" => (24 - round($row["nest_heat_state"] / 12, 2)))));

A proper way would be to have the polling period set in the config file and then do a calculation for how many polling intervals go into 24 hours then divide the value by that calculated number.

from nest-datagraph.

I haven't time (and Nest Thermostat) to maintain this project.
Feel free to open a PR to fix it :)

Thanks.

from nest-datagraph.