Decoded - EvoHome API access to control remotely.

[jarrah31]

Hi Peiter,

I have actually implemented graphs in my web version already, I just didn't post the screenshots of this, because I forgot

Graphs are useful as it gives you a good idea as to how long rooms take to heat up, and also any potential TRV faults etc.

Magga, are you still around? It's nearly been a year since you posted on here, yet I'd love to use the excellent web interface that you posted screenshots to...

[paulockenden]

I think we all would!

If the problem is that the scripts are a bit 'dirty' and too tied to your setup, I'm happy to help you knock them into shape.

P.

[jarrah31]

Glad you got it working. To be honest, at least for my use case I'm just authenticating anew each time. My main use of the api is to record the room temperatures every 5 minutes and store that to a database for viewing (http://www.andrew-stock.com/weather/show/). It looks from the response that the token is valid for an hour, but I haven't done anything with that, or seen a use of a the "refresh" token either

Love the work you've put into this, and it's great to see you're still updating and working on your github page: https://github.com/watchforstock/evohome-client

Just in case it helps anyone else using a Raspberry Pi, I had to install and run the following modules in order to run the python scripts without errors:

sudo apt-get install python-pip
git clone https://github.com/watchforstock/evohome-client.git
sudo pip install ./evohome-client
sudo apt-get install build-essential libssl-dev libffi-dev python-dev
sudo pip install requests[security]

[jarrah31]

I think we all would!

If the problem is that the scripts are a bit 'dirty' and too tied to your setup, I'm happy to help you knock them into shape.

P.

I would help out too!

[paulockenden]

By the way, be wary about displaying things like room temperatures, electricity consumption etc. on publicly accessible websites. It makes it very easy for rogues and scoundrels to see when you're away for a few days....

P.

[jarrah31]

By the way, be wary about displaying things like room temperatures, electricity consumption etc. on publicly accessible websites. It makes it very easy for rogues and scoundrels to see when you're away for a few days....

P.

Very much agree with you there, Magga did say his wife complained that temps were being adjusted by some internet randoms!

I would stick the interface behind my VPN server running on another Raspberry pi I have (fingers crossed if Magga is still around!) for remote access.

[jarrah31]

Using the script from https://github.com/watchforstock/evohome-client, I'd like to log the data into a file that's easily importable into Excel for manipulation, along with logging the timestamp of each temperature line.

When I run:

for device in client.temperatures():
    print device

It shows:

{'temp': 53.0, 'setpoint': '', 'thermostat': 'DOMESTIC_HOT_WATER', ......
{'temp': 21.5, 'setpoint': 21.0, 'thermostat': 'EMEA_ZONE', .....

How would I add a timestamp to the beginning of each line so that it looks like:

{'timestamp': 19/10/2015  20:27, 'temp': 53.0, 'setpoint': '', 'thermostat': 'DOMESTIC_HOT_WATER', ......
{'timestamp': 19/10/2015  20:27, 'temp': 21.5, 'setpoint': 21.0, 'thermostat': 'EMEA_ZONE', .....

I'm no Python programmer, so trying to follow the code (e.g. temperatures() )when it's split up into many different segments from different files is proving difficult, let alone figuring out how to add a timestamp into there too.

Thanks.

[jarrah31]

tbh, ideally in CSV format because importing into Excel isn't all that easy. e.g.

timestamp, temp, set point, thermostat, name, id
19/10/2015 20:27, 53.0, , DOMESTIC_HOT_WATER, , 123456
19/10/2015 20:27, 21.5, 21.0, DOMESTIC_HOT_WATER, Hallway, 123456

[MrB]

On 2nd Sept Rameses said "Honeywell have an Open API program which is available upon request" - I tried a PM to him, but his mailbox is full and it won't accept any more.
Does anybody know how to obtain this Open API?

[StuartG]

I'd also be really interested in knowing if there is anything more detailed about the API. I've got as far as data logging, but I have some ideas for further automation / interaction projects. I've got so far using the Python / PHP examples on here, but would be good to understand the 'official' details.

[magga]

Hi all,

Wow, I can't believe the interest I've had about the interface I made. Sorry i haven't replied to a lot of private messages, I have recently started my own business, and have just not had time to revisit this project until recently. The main issue with the interface is that it's a bit buggy and not all that secure, so I'm reluctant to release it to the masses. It doesn't really have any error checking so if something doesn't work, it can be tricky to work out what's going on.

I have added some support for lightwaverf and also Somfy blind motors, although these are just calls to the domoticz API that I have running on my raspberry pi.

Thanks

[Dan_Robinson]

Is there an idiots guide for those of us that have all the gear but no idea?

Cheers

[PaulB]

I'll hopefully be getting my system all installed & setup next Monday, so until then I can only wait to actually give this a go.

I take it the python scripts created work without any real issue or finicky dependencies? Also what would the ideal polling time be, 5 minutes? I'm looking at putting all the metrics into a graphite backend so I can do some nice in depth monitoring of what's going on.

[Inferno]

Thanks to this thread I was able to make a plugin for Munin (http://munin-monitoring.org/) to monitor my zones of the evohome.

The can be found here https://github.com/Infern1/evohome-munin

2015-10-29 09_32_06-Munin __ robhome.lensen.nu __ router.robhome.lensen.nu.jpg

[paulockenden]

Interesting example of overshoot on some of those graphs!