canze-icon-shadingIf you want to learn about your Renault ZOE electric vehicle, you’ve come to a good starting point. We will supply you with an app that displays driving stats and lots of interesting information about your car. All you need is a Bluetooth OBDII dongle or a super fast do-it-yourself build CanSee dongle, and an Android device. For a more detailed description of the app see the about or the screenshot page. There is a sister project for Apple iOS.

The app is available on Google Play store here.

Remember, Android 9 or 10 only, which is now over 50% of our user base.

  • Growth: 3.1% for 30 days, 60% for a full year.
  • ANRs and crashes are very low, way under “bad behavior” threshold. Attacking them systematically has payed off.

The Tire IDs (and pressures) are conveniently labeled Front Left, Front Right, etcetera, but the car has no separate receivers for the individual wheels. It just sees four values coming in and checks it. Enough for the warning light, but not for us users. We want to make sure the pressure is stated for the correct wheel, and the ID for the correct wheel is displayed.

We’re in a pickle a bit as we received a report that the Rear IDs in CanZE are swapped, while we have followed available documentation. As none of the developers have a TPMS equipped car, it’s impossible to experiment. So in case you are a “tire guy” with a TPMS equipped ZOE, please do some experiments and confirm (or deny) said report. Thanks!

In the next release we plan to introduce dark mode for Android 9 and 10 devices. It probably will not be settable in CanZE itself but will follow Android’s native setting.

Until now, we’ve been keeping CanZE compatible with API level 15, meaning Android 4.0.3. For reference, we’re talking Samsung S2 era, early 2012 phones. To make dark mode work without over-complicating the code, we have to let go of supporting Android 4 and make API level 21 the minimum requirement. These are late 2014/early 2015 phones. The number of active users below API level 21 is below 1% of the active users, so we feel this is a fair compromise.

The sun-setting of Android 4 support has been announced starting today in the news bar. If you run CanZE on an Android 4 device it will no longer receive updates.

Bug fixes only. Changelog can be found here.

Things have been slow as vacation progressed. And of course now work is competing. But that doesn’t mean things have halted. A new release is in the making, though it mainly fixes language and edge case stability issues. No new functionality.

  • Growth has slowed down but is still going on quite nicely: 2.4% in the last 30 days and we’re now at about 5300 active Android devices
  • ANR’s are virtually zero (one user impacted)
  • Crashes are down to a record low 0.15%, less than one per day. This is half of the peer median. And half of those are Bluetooth related.

Renault changed it’s API totally for the complimentary MY Renault app. Muscat did some reverse engineering and I implemented that in Node-RED. Please note there is zero error checking. The bottom two rows are examples that can be fed the same message as the Get battery status node.

I’ve been busy recoding the interface between my home automation and ZE services as Renault changed their entire apps and API to “MY Renault”. That worked out with the kind help provided by James. All back on track again in Node-RED.

While doing some research I ran into a post from one of the developers on the French forum. This was one of the things he mentioned that has always been “somewhat known”, but more precisely formulated now.

  • Start of charge
  • During charging, every 30 minutes (every 15min for Z.E. 40)
  • End of charge
  • Beginning of a journey
  • During the trip, every 30 minutes (every 15min for Z.E. 40) or every 5% of SOC (state of charge of the battery)
  • End of a trip
  • Before sleep (3 min after lockout) if the battery value has changed since the last message
  • Before sleep (3 min after lockout) if the car is not connected, a charge is programmed and the charge level is less than 100%
  • Low battery alert
  • Instant pre-conditioning set point.

  • 3.3% growth last month
  • One ANR from a very old version. That doesn’t count 😉
  • Crashes about 1.5 per day, more than half of them caused by an uncatchable error related to Android 8.1

Thank you all for installing and running no less than 5000 CanZE instances on Android! A humbling number for a total amateur project.