MyEV post-mortem review…

A few months ago I published a guide to install the MyEV on our Tesla Model S. What I didn’t share in the original post, but did on subsequent comments is the purpose of the support of the Indiegogo project – MyEV Electric Vehicle Logger and App.

Since we’re a two electric vehicle family, there is some healthy competition between my wife and I on who is the “more efficient” EV driver. The marketing for the MyEV project introduced the fun, social gaming concept using the loggers that MyCarma built for the MyEV product. Since my wife drives a 1.5 Tesla Roadster, I made sure that the folks at MyCarma are able to support her car for the purchase of the two units. I was pleasantly surprised by their positive answer.

The original version of this post was to be along the same lines of the installation guide for the Model S, but we ran into some snags with the way that the Roadster reports itself. Furthermore, it appears that we were the only Roadster owner to support the project for the Roadster. In the end of the day, the Roadster reported data at a rate that was too much for the logger. I appreciate the effort from MyCarma to try to resolve this challenge. Especially since I needed them to make the product work in conjunction with OVMS.

Here is the Custom Roadster cable to the MyEV unit.

IMG_20150429_162640The folks at MyCarma were aware of my requirements to have the unit work with OVMS, so they sent me a Y-cable for the Tesla Proprietary diag port with custom OBD adaptor. IMG_20150429_162701

Like I said, this one is built for the Roadster

IMG_20150429_162728Here is the cable chained up. IMG_20150429_162807

And connected

IMG_20150429_162838Here is the footwell with the OVMS installed in the Roadster. IMG_20150429_171344

Pulled the cable and OVMS off…


When connected, the Bluetooth connection should work.

IMG_20150429_171029And start transferring the log files. IMG_20150429_170949

Here’s what the setup looks like, before it is tidily installed.

IMG_20150429_170848Then put it back in place. IMG_20150430_135749

So. It all hooked up just fine. The problem lay with the fact that though it looked like the unit was logging and transferring it actually wasn’t. I tried playing around with it and finally asked for help.

Tech Support at MyCarma replaced some cables, did some programming and generally tried to help me for at least a month if not longer. At the end, since we were the only Roadster purchasers of the product, it became cost ineffective for them to figure it out and offered me a refund for the unit. I explained to them the reason why we purchased two units (one for the Model S and the one for the Roadster) and they went ahead and refunded us for both units.

The app looks like a lot of fun, but we really needed it to work for both vehicles and it was quite good customer service of MyCarma to provide us with the resolution. I continue to hope that they fix the Roadster, but lacking any further sales. It’s like Waiting for Godot.

[Added at 10:20 PM 9/27/2015 – I forgot to add pictures of what the software looked like when I was using the product]

All these screens are for the Model S as the Roadster one never really processed the data properly. The roadster processed at a speed that the logger could not figure out.

Here is the summary of the power charged for as long as the unit was plugged into the Model S.


Here is the charging histogram of when the most amount of power was added to the car. Considering that the unit was installed before the start of our Here, There, and EVerywhere roadtrip in May 2015.


Several leaderboards, this one is for the Same Model (Model S) in the Same Region (California?)


The next leaderboard is for All Cars in the Same Region. IMG_1040

The last leaderboard is for all cars in all regions.


MyEV for Tesla Model S:  A Hardware Installation Review.

Almost a year ago, on June 20, 2014, I contributed to my first, and only, so far, Indiegogo project. The project is the MyEV Electric Vehicle Logger and App.

We received the product in mid April and I got around to installing it a few days later. The instructions from MyEV are pretty straightforward, but it is somewhat disjointing having to remove the center console to access the Tesla proprietary cable to connect the logger to.

What do you get in the package?

1) proprietary Tesla to OBD 2 cable

2) Model S only OBD logger

3) the myEV window sticker (with QR code)


A couple of pictures of the logger..

Note that this is only for a Tesla Model S


The Micro SD card is 512mb so there’s a lot of room for stuff…


I attached the OBD logger to the cable to get it ready.


Accessing this part is the “scary” part because you have to snap it off.

First you snap the little shelf from the center console…  

Find the proprietary cable and pull it out


Here it is ready to plug into.


Plug in the cable so that you can install the OBD MyEV logger.


Snake it in, tuck some of the cable so that it is easier to reattach.


It may have been scary to get it opened up to plug the logger in and installed, but…

It’s all good after it’s done…


So, how’s the App?

Pretty good, actually.  But, I’ll cover that later.  It provides the gamification and competitiveness between owners of the system, as was originally planned.  Firer more, it’s supposed to provide a snapshot of the car’s battery health.  Have yet to see those estimates.