Nest Thermostat History Data Logger

48,800

59

184

Introduction: Nest Thermostat History Data Logger

About: When given the choice between being right or being kind, choose kind. - Dr Wayne W. Dyer

Nest thermostat tracks temperature, humidity and furnace/AC usage and users are able to see historical data only for 10 days. I wanted to collect historical data (>10 days) and came across google spreadheets script that pings nest every set time and also gets local weather data from openweathermap.org and saves in the spreadsheet.

Everything was going well for a year, and the script suddenly stopped collecting data. After some google searching, I realized that one row every 5 minute for google spreadhseet means hitting the max limit of cells a google spreadsheet can accomodate. I updated the original script to still ping Nest every 5 mins, and but collect data in 1 row per day. Script checks the last row and if it is the same day, then it appends the data to the same row rather than adding a new row.

Credit for the original script. I just made a few edits to suit my needs.

// michael-pesce's work: https://gist.github.com/michael-pesce/a4ba55d4fc4...
// --> BEEZLY's work: https://gist.github.com/beezly/9b2de3749d687fdbff...

Keywords: Nest Thermostat History, Nest Heat, Nest Temperature History, Nest Thermostat Hack, Nest Thermostat Tips, Nest Energy History, Nest Daily Use, Nest Daily Usage, Download nest thermostat data

Step 1: Create a New Google Sheet (Do a Save As on My Shared Spreadsheet)

Start with my shared google sheet linked below (Open that file and click File and then "make a copy" and save in your google drive).

P.S: Do not ask me to give you the permission to edit this file. Before you make any changes, which you will not be able to make because I shared this as a read only spreadsheet, do a "make a copy" in your own google drive and then proceed with making edits.

https://docs.google.com/spreadsheets/d/1zTHUfiltWomhPYmfD3TYRRoJZsgcjrQ_A2xHSTK5_dE/edit?usp=sharing

To folks who are having issues with authorization: Try the script in the following file. It has additional functionality related to Nest's new 2.0 authorization protocols. I have not tried it, so if you come across any questions or issues, please post in the comments section.Credit to mcr2582.

https://www.dropbox.com/s/8rbtg7pb0xl9n9x/nest%20t...

Another variation of the script by Coder56: Additional details in the comments section. I have not tried it, but script is organized very well and it appears to be working well for many users.

https://docs.google.com/spreadsheets/d/15bTn9_Cv9I...

Step 2: Copy Script

Skip this step if you did save a copy on my shared google sheet.

  • On the menu bar click Tools -> Script Editor... to open Script Editor (new window)
  • In Script Editor delete all the default scripts/files, and create a new one (I called it "NestScript.gs")
  • Cut and paste this entire text from the attached file into NestScript.gs, then SAVE THE SCRIPT(For this step, please use the script from the google sheet I shared in step 1. If you did a save a copy on that file, you should already have the script. If you didn't you can open that file and go to script section and copy past the text. I deleted the script text file that was attached to this step as it was not up to date and may create confusion.).

Step 3: Deploy As Web App

  • On the menu bar click Tools -> Script Editor... to open Script Editor (new window)
  • On the menu bar click Publish -> Deploy as Web App
  • Select "Execute the App as Me"
  • Select Who has access to the app: "Anyone, even anonymous"
  • Copy/take note of the link to your new web app for now, and it will be added to the runDataCollection routine below (the first code) in later steps.

Step 4: Triggers

This is where you define how often to collect data.

  • On the menu bar click Current Project's Triggers
  • Click add new trigger
  • For Run select the function runDataCollection, Events: time-driven, and select the rest per your preference (I do every 5 mins)

Step 5: Additional Information in Script

Let's modify the script to your specific thermostat, city and google sheet.

Each change is listed with a line number of the script. You will have to go to that line in the script and update as instructed below. (Line numbers should be correct if line 40 is "runDataCollection()...").

  • Line 45: add webapp link in the runDataCollection routing (This is what you noted in one of the previous steps)
  • Line 53: Nest username and password
  • Line 77: Thermostat device ID

You can get the id for each thermostat by going to the Nest dashboard, clicking on the Thermostat, clicking the gear icon on the top right then copying the "Serial no."" field. It will look something like: 02XX01XX471XXX3S

  • Line 90: City ID (additional instructions in the script above this line may be helpful.)

To find city ID go to "http://openweathermap.org/find?q=" search for your city, click on the city link and the ID will be the 7 digit number in the URL

  • Line 103: Google sheet ID (additional instructions in the script above this line may be helpful.)

The Sheet id can be grabbed from the shee URL See this pattern for where the Sheet id is in the URL:https://docs.google.com/spreadsheets/d/THIS_IS_WHERE_THE_SHEET_ID_IS/edit#gid=123456789

Step 6: Finalize the Spreadsheet

Skip this step if you started with my shared spreadsheet.

These two lines need to be in the spreadsheet for the code to work.

First line (Header row): Space separates columns

Date/Time Month Day Year Temp Humidity OutsideTemp OutsideHumidity Heat_Usage AC_Usage Weather AutoAway

Second Line:

Add yesterday's date in the first column and zeros in the remaining columns.

That is it. Let the script run and it should add one row per day and pinging your thermostat and local weather for data per the trigger frequency you set.

If you redeploy the webapp, use the new revision. I had problems using the same revisions with script not running.

If script is not running, go over the previous steps again and make sure you have updated the script as suggested by these steps accurately. This is the most likely cause of the issue with script not running.


Known Issues (If someone knows the fix, please reply in the comments section):

1) Script fails to obtain data from nest throughout the day. I have my trigger every 5 minutes, which should results in total 288 reads throughout a day. I get ~170. Lowest I had gotten is 16 and highest is 264.



1 Person Made This Project!

Recommendations

  • Puzzles Speed Challenge

    Puzzles Speed Challenge
  • "Can't Touch This" Family Contest

    "Can't Touch This" Family Contest
  • CNC Contest 2020

    CNC Contest 2020

184 Discussions

0
schmidtbaby
schmidtbaby

27 days ago

Hi,
I get the following error _ can you help? PS Password is not actual for safety

Missing ) after argument list. (line 53, file
"NestScript")





var login_auth =
performLogin(schmidtbaby9@gmail.com,Lovwbaby177);

Thanks






3
djmills32
djmills32

6 months ago

Hi, I had this working for some time (months), but it stopped logging Oct 23 last year. I have double checked everything. When I try to run after the publish I get a 406 error. Is there any way to resolve this. Or does this relate to Google's change of policy regarding interactions between Nest devices and 3rd party?
Thanks,
David.

0
brunoplus
brunoplus

Reply 2 months ago

Same problem for me.
This is the error:
Login failed: {"error":"access_denied","error_description":"invalid user credentials","instance_id":"46c04938-2aad-4736-b2e7-9d4cdf497ee5"} (riga 583, file "NestScript")
How to make it works again?

2
armstrongwh
armstrongwh

Reply 6 months ago

I am also getting a 406 error when trying to run the code after making the modifications instructed. I never had the script running before, so a little less confidence that I have already coded right, but it seems like this could be a general issue?

1
TheCalebG
TheCalebG

Question 7 months ago

@coder56

I'm working with your script and I'm getting an error when trying to run (see below). Are you familiar with this and do you know a solution?

@coder56

I'm working with your script and I'm getting an error when trying to run (see below). Are you familiar with this and do you know a solution?

Login failed:406 Not Acceptablenginx(line 583, file "NestScript")

Capture.JPG
2
thierry.sombreffe
thierry.sombreffe

Question 7 months ago

The script doesn't login with my gmail account
I have 100% errors. Any idea?
For information, I can't login to Home.nest.com with my google email/password... I must click on "Connect with Google" button

4
dennisgb2006
dennisgb2006

Question 9 months ago

Does this still work after google account migration? I follow all the steps and did not seem to work for me. Any thoughts?

0
gwright215
gwright215

Answer 8 months ago

Just set this up and the login routine with POST is failing, even though I changed it to the be the 'login with nest' URL. Anyone have a fix with this?

0
jeff.mclain.0
jeff.mclain.0

Answer 8 months ago

I'm having the same issue for sure. I'm going to play around with some stuff and try to get it to work...definitely no idea what I'm doing though.

Anyone have any ideas?

1
BryceK9
BryceK9

Reply 8 months ago

Same here, seems like much has changed from this original post. Anyone know of an updated version of this?

1
mjlarson84
mjlarson84

Question 9 months ago on Step 6

Is there a way to pull historical data from the nest account? I just installed more insulation in my home and it would be great to compare years to one another to see the impact, but I'd even be happy with the last 10 days. I am not a programmer so if the solution is more technical than the difficulty (aka cut and paste) of this instructable I will be lost.

Thank you!

2
jwgranquist
jwgranquist

10 months ago

Thank you for this ...I have tried to implement this sheet, but I migrated my NEST and Google account. Thoughts!?!

I have a feeling I did the wrong thing, for accessing data, when I migrated the NEST account.

10
coder56
coder56

2 years ago

Nice work. This was what I was looking for. Thank you.

I updated the spreadsheet to handle my two homes with 4 thermostats. The script puts each thermostat on a separate tab. I simplified the configuration to just a user id and password and placed them at the top of the script. I got rid of the web app (no need since the script runs off of a trigger and not from an external request, and this simplifies setup). I also switched to the nest weather api (this also simplifies setup). The weather, time, and temperature units are those at the thermostat. I removed the roll up computations from the data collection script (I believe this can be done in the spreadsheet itself or added as a separate archival script to be run periodically, e.g. weekly, monthly, quarterly, ...).

BTW, I did try the new OAUTH2 based script, but found the configuration WAY too complicated for the average user and the new nest developer api too limited. Instead, I opted to make my changes based upon the script in this article.

https://docs.google.com/spreadsheets/d/15bTn9_Cv9I...

0
ktsavoie
ktsavoie

Reply 11 months ago

Wonderful sheet and and script! Everything was geat until I signed up for 2-step verification, then the scipt began to fail and I started to get texted verification codes. Seem like google/nest is pushing for the 2-step verification becasue they delete my password and I have to re-enter it everyday. (first world problems) I assume OAUTH2 = 2-step verification? So we shouldn't expect this anytime soon?

Thanks for your work!
0
wyk126
wyk126

Reply 1 year ago

Thank you very much, it worked! I followed the instructions on the scripts, initially I got "too many failed login" then I got "Login pending" error, then I realise that I turned on the 2-step verification on my Nest account, after I disabled that it worked perfectly! thankyou so much for your work! I really hope there will be an official support from Nest at some point though...

0
RobertW96
RobertW96

Reply 1 year ago

Thanks, this worked like a charm! I wasn't able to have the data from my two thermostats split by duplicating the main spreadsheet and renaming them appropriately: "Living Room" and "Basement"

Am i missing an important detail in how to name the sheets?

0
coder56
coder56

Reply 1 year ago

The sheet name must match the name of the thermostat in the Nest application. Is all of the captured data going into the first sheet? Check your logs after the script captures data. You should see the names of the nest thermostats that must match the sheet names.

-Coder56

0
alex-f38
alex-f38

Reply 1 year ago

HI Finally I managed to make it run by removing in the script everything in relation with weather. It appears the weather data are not provided anymore by accuweather for free
Do you have this problem as well in the US ? anyway most important for me was to save the temperature in real time and this is working ok. Thank you

0
coder56
coder56

Reply 1 year ago

Sorry to hear about the problem with weather data. I am not experiencing the problem in the US. Unfortunately, I don't have a way to verify your issues. Are you sure the weather data is not provided at all? Perhaps there is a variation on the postal_code that the script does not take into account. Check to see what is returned from the fetch of the 'weather_url'

0
coder56
coder56

Reply 1 year ago

The latest script adds the country_code the weather request. This should fix the non us weather requests.