New to OVMS I thought the bundled 1MB/month Horizon card would do the job of occasional battery checking and daily starting of AC just fine.
After all, that should not be very many bits of real data payload.
The reality seems to be something else, as it burned through the 1MB allowance the first day. Leaving it on seems to burn through the money rather quickly.
It's great that some seem to have 2€/month unlimited IoT available, but for those who don't, would it be difficult to create a low data mode?
I would be happy with an OVMS waiting for a request to send battery info or a request to start AC or charging. Or location (different requests? for one-time current location and location streaming which can obviously use a lot of data). That should limit data used. And as OVMS seems to respond very quickly, that wouldn't be a problem as it has been with Nissan's original service that could take 5 minutes to respond.
Since the v3 hardware wifi chip doesn't interface with any older routers (see https://www.openvehicles.com/comment/6993#comment-6993 ) I've paused my Horizon SIM and started a habit of sharing the wifi from my phone through the window whenever I want to talk with the car. Seems to work, but of course it's a bit clumsy and only works if you have a spot where your phone wifi (or any working wifi) will reach the car. No-hassle 4G usage would be great. Especially with cars that can start AC even if the car is not charging (mine is a 2016 Leaf, 2015 works fine I hear).
Great if this can be considered. Please let me know if I can do something to help, I haven't delved in to the OVMS code at all at this point.