Turbo3
Gold Member
Posts: 2011
Joined: Mon Jul 19, 2010 8:34 pm
Delivery Date: 12 May 2011
Leaf Number: 002191
Location: San Jose, CA

Re: Using clone ELM327 Bluetooth OBDII adapter with Leaf

Thu Apr 04, 2013 3:49 pm

Added in max and min cell pair voltages but instead of an average I have added the difference between best and worst CP in millivolts in parentheses after min voltage. The smaller the number the better balanced your pack is.

(The Leaf is out so this picture is taken with test data.)
Image

Leaf is back so here it is again with real data. Put code in to auto adjust the y-axis grid interval.
Image

Just enough room for average CP voltage. Note CP difference dropped to 12 millivolts from 16 after sitting for 30 minutes.
Image

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garygid
Gold Member
Posts: 12464
Joined: Wed Apr 21, 2010 8:10 am
Delivery Date: 29 Mar 2011
Leaf Number: 000855
Location: Laguna Hills, Orange Co, CA

Re: Using clone ELM327 Bluetooth OBDII adapter with Leaf

Thu Apr 04, 2013 9:23 pm

The AT&T Fusion 2 Android smartphone is $80 at Fry's now.

Do I understand right that when one buys this phone, it does
not need any activation, payment plan, etc. to be able to use
it in the Bluetooth or the WiFi mode, just like a little tablet?

Does anybody know where it can be ordered for $40 or so?
Thanks

Now, we should add this screen to CANary. :D
If you do not mind, I will add a CP Bars screen to CANary
tomorrow morning, updating rev47-gg1 to rev47-gg2.
You are busy doing great things with the Android app.

If you post or PM a link to the app, I could try it out
with my Android Tablet.
Last edited by garygid on Thu Apr 04, 2013 10:27 pm, edited 1 time in total.
See SOC/GID-Meter and CAN-Do Info
2010 Prius, now for sale
2011 LEAF, sold in 2015
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Solar PV: 33 x 225W -> 7 kW max AC
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Turbo3
Gold Member
Posts: 2011
Joined: Mon Jul 19, 2010 8:34 pm
Delivery Date: 12 May 2011
Leaf Number: 002191
Location: San Jose, CA

Re: Using clone ELM327 Bluetooth OBDII adapter with Leaf

Thu Apr 04, 2013 10:26 pm

Gary,
You don't need to activate it and everything works (Bluetooth, WiFi, GPS, Play Store). In an emergency 911 will also work. You can get an unlock code and use it on any network. Once unlocked you can buy any SIM card with minutes and use the Phone. Great for travel to other countries.

There are map apps that download map sections to the uSD card so you can use them with the GPS with no network connection when you travel.

Just wait a while and Fry's should have them on sale again.

Your Histogram code is on the list to get ported as well as regen braking ;-)

sirfergy
Posts: 104
Joined: Wed Mar 30, 2011 3:57 pm
Delivery Date: 28 Jun 2011
Leaf Number: 4777

Re: Using clone ELM327 Bluetooth OBDII adapter with Leaf

Fri Apr 05, 2013 9:13 am

When will you mod the device to try and read from the EV-Bus? I'd love a simpler way to get the SoC w/o having to purchase a dedicated (and pricey) device.

Turbo3
Gold Member
Posts: 2011
Joined: Mon Jul 19, 2010 8:34 pm
Delivery Date: 12 May 2011
Leaf Number: 002191
Location: San Jose, CA

Re: Using clone ELM327 Bluetooth OBDII adapter with Leaf

Fri Apr 05, 2013 11:11 am

Looks like GregH has identified a high resolution SOC value which I can read out from the CAR-CAN. So no need to rewire the ELM to get SOC.

I should have %SOC added by this afternoon to the display. On my car after a full charge the value I read showed 94.6622% SOC using the ELM327 with a gid count of 263 from my WattsLeft before I swapped in the mini ELM327. Same value on GregH's car read 49.4884% with 142 gids read from his gid meter.

sirfergy
Posts: 104
Joined: Wed Mar 30, 2011 3:57 pm
Delivery Date: 28 Jun 2011
Leaf Number: 4777

Re: Using clone ELM327 Bluetooth OBDII adapter with Leaf

Fri Apr 05, 2013 12:09 pm

Awesome! Does it matter which Bluetooth reader I buy?

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davewill
Posts: 5079
Joined: Thu Mar 17, 2011 6:04 pm
Location: San Diego, CA, US

Re: Using clone ELM327 Bluetooth OBDII adapter with Leaf

Fri Apr 05, 2013 1:24 pm

Exciting times! I just ordered myself an mini module. This is going to be great fun. I'm amazed that all the info we really wanted was available on the CAR-CAN bus all along. I look forward to the point when you think you can alpha the code/app out to folks.
2014 Rav4 EV, Blizzard Pearl White
2011 LEAF SL w/QC, Blue Ocean, returned at end of lease

sirfergy
Posts: 104
Joined: Wed Mar 30, 2011 3:57 pm
Delivery Date: 28 Jun 2011
Leaf Number: 4777

Re: Using clone ELM327 Bluetooth OBDII adapter with Leaf

Fri Apr 05, 2013 1:33 pm

Alright, I just ordered the mini from Amazon using Prime. Once the app is ready, it should work on a Kindle Fire HD too right? That would save me from having to buy an Android phone.

Turbo3
Gold Member
Posts: 2011
Joined: Mon Jul 19, 2010 8:34 pm
Delivery Date: 12 May 2011
Leaf Number: 002191
Location: San Jose, CA

Re: Using clone ELM327 Bluetooth OBDII adapter with Leaf

Fri Apr 05, 2013 2:01 pm

For small size I would get the mini which is what I currently use.

Just added the code to request and save the group 1 battery message response which has the HiRes SOC.

Image

I will probably put back the top status line as you need it to access the pairing request when you first plug in the BT OBDII adapter.

Now that I have the SOC I will add code to read every second or so. With so much resolution the low digits move fast when charging or driving. Did not seem to change when car was off and headlights are on. But once I turned on the car it updated to a lower value.

sirfergy
Posts: 104
Joined: Wed Mar 30, 2011 3:57 pm
Delivery Date: 28 Jun 2011
Leaf Number: 4777

Re: Using clone ELM327 Bluetooth OBDII adapter with Leaf

Fri Apr 05, 2013 2:11 pm

This is awesome! I can't wait to try it out!

Why every second though? Wouldn't every 30s be sufficient? Or at least, make it configurable? :)

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