ironmanco
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Location: Boulder, CO

Re: OpenEVSE - Open Source Charging Station

Thu Nov 09, 2017 8:48 pm

Hey - I was email back and forth with the folks over at OpenEVSE and they are looking for someone with phone app development skills to implement a native phone app (iOS/Android). If you know someone who fits the bill or ARE someone who fits the bill, reach out to Chris over there.
2016 Nissan Leaf SL Deep Blue Pearl
Mfg 12/15 Del 1/16 30 Oct 2017 34172 mi Ahr 67.69 SOH 85% Hx 78.55%
Charging: evseupgrade L2 charging 30A circuit @ 24A shared garage heater circuit (ask me)

GlennD
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Leaf Number: 410357
Location: Anaheim

Re: OpenEVSE - Open Source Charging Station

Fri Nov 10, 2017 10:43 am

Sorry, I am a hardware person with no programming skills. Personally I just want a working EVSE with a timer. Chris maintains a website for wi-fi gui and I guess it works well but I have no interest.
2012 Cayenne Red SL traded for:
2013 Pearl White SL Premium
Traded for a Cirrus White 2014 Mercedes B (totaled)
2016 Urano Gray eGolf SEL w/ drive assist
Loved the VW but it sat too low for my old body
Back to a Cirrus White 2017 B250e

ironmanco
Posts: 116
Joined: Mon Dec 14, 2015 8:26 pm
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Location: Boulder, CO

Re: OpenEVSE - Open Source Charging Station

Fri Nov 10, 2017 11:15 am

GlennD wrote:Sorry, I am a hardware person with no programming skills. Personally I just want a working EVSE with a timer. Chris maintains a website for wi-fi gui and I guess it works well but I have no interest.


Based on what I understand for optimal battery maintenance being able to control charge not only based on timers but temperature and SOC would be much better.
2016 Nissan Leaf SL Deep Blue Pearl
Mfg 12/15 Del 1/16 30 Oct 2017 34172 mi Ahr 67.69 SOH 85% Hx 78.55%
Charging: evseupgrade L2 charging 30A circuit @ 24A shared garage heater circuit (ask me)

GlennD
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Re: OpenEVSE - Open Source Charging Station

Fri Nov 10, 2017 10:38 pm

For the Leaf integrating with Leaf Spy could do it, I think it is a lot of work with minimal returns.

Since I have moved into a CARB car with no support I really have no real interest. My car works for me even with an 87 Mile range. I plan to return it at lease end so I am not worried about the battery. For sure it will make to three years.

My totaled B had 14 months left on a three year lease and 9023 miles. As a retired person I do not drive a lot.

The Leaf is unique in that there is major hacking support. No other car I have ran across has the degree of support. Certainly not the B250E.
2012 Cayenne Red SL traded for:
2013 Pearl White SL Premium
Traded for a Cirrus White 2014 Mercedes B (totaled)
2016 Urano Gray eGolf SEL w/ drive assist
Loved the VW but it sat too low for my old body
Back to a Cirrus White 2017 B250e

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JeremyW
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Delivery Date: 23 Jun 2012
Leaf Number: 19136
Location: San Gabriel, CA

Re: OpenEVSE - Open Source Charging Station

Sat Nov 11, 2017 7:16 am

Is this a volunteer basis or would they be paid? I know of some app developers who might be interested. PM me details if you wish.
Former 2012 SL leasee 6/23/12 - 9/23/15
Now driving Honda Fit EV, License plate: CHADEMO
2000 Honda Insight for long trips

ironmanco
Posts: 116
Joined: Mon Dec 14, 2015 8:26 pm
Delivery Date: 25 Jan 2016
Location: Boulder, CO

Re: OpenEVSE - Open Source Charging Station

Sat Nov 11, 2017 7:28 am

JeremyW wrote:Is this a volunteer basis or would they be paid? I know of some app developers who might be interested. PM me details if you wish.


It was indicated that compensation could be arranged.
2016 Nissan Leaf SL Deep Blue Pearl
Mfg 12/15 Del 1/16 30 Oct 2017 34172 mi Ahr 67.69 SOH 85% Hx 78.55%
Charging: evseupgrade L2 charging 30A circuit @ 24A shared garage heater circuit (ask me)

GlennD
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Re: OpenEVSE - Open Source Charging Station

Sun Feb 11, 2018 3:22 pm

I have found that the Barbouri and Chris's DIY board layout is wring. They are using pin 7 as an output. It really exists for an optional bias resistor.The correct pin is pin 6. There is an easy fix since we do not use pin 7. Simply remove pin 7 from the device and bridge pins 6 & 7 together.

It is funny in that there are many, many Barbouri boards out there that work fine using the photo diode output. In all cases the schematic is correct but the board layout is wrong.. It is better to use the full output circuit.
2012 Cayenne Red SL traded for:
2013 Pearl White SL Premium
Traded for a Cirrus White 2014 Mercedes B (totaled)
2016 Urano Gray eGolf SEL w/ drive assist
Loved the VW but it sat too low for my old body
Back to a Cirrus White 2017 B250e

gridstop
Posts: 2
Joined: Tue Feb 06, 2018 6:21 pm
Delivery Date: 11 Feb 2018

Re: OpenEVSE - Open Source Charging Station

Mon Feb 12, 2018 7:03 pm

I know the Open EVSE supports changing charging current via the serial interface (and by the UI), but can this be done in the middle of charging? Or does it have to stop and re-start?

And will the leaf respond on the fly and lower/raise current? I've been thinking about whether Open EVSE could be used to make a dual charger for a single 40A line and negotiate current between the two of them. Or possibly sharing a single 40A line with a garage heater (so when the heater is on, lower current to 14A or something).

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davewill
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Re: OpenEVSE - Open Source Charging Station

Tue Feb 13, 2018 7:39 am

gridstop wrote:I know the Open EVSE supports changing charging current via the serial interface (and by the UI), but can this be done in the middle of charging? Or does it have to stop and re-start?

And will the leaf respond on the fly and lower/raise current? I've been thinking about whether Open EVSE could be used to make a dual charger for a single 40A line and negotiate current between the two of them. Or possibly sharing a single 40A line with a garage heater (so when the heater is on, lower current to 14A or something).


The answers are Yes and Yes. You could definitely do this. There is a large installation in the LA area that does this with OpenEVSE based units. I tried to find a link for it, but couldn't.
2014 Rav4 EV, Blizzard Pearl White
2011 LEAF SL w/QC, Blue Ocean, returned at end of lease

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drees
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Re: OpenEVSE - Open Source Charging Station

Wed Feb 14, 2018 1:37 am

davewill wrote:The answers are Yes and Yes. You could definitely do this. There is a large installation in the LA area that does this with OpenEVSE based units. I tried to find a link for it, but couldn't.

Free Destination Charging: 50x L2 80A Stations @ Caltech, Pasadena, CA
There's a mix of technology used there now, not sure how much is OpenEVSE units.
'11 LEAF SL Powered By 3.24 kW Enphase Solar PV

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