OpenEVSE - Open Source Charging Station

[mitch672]

Can anyone guess what the top 3 boards are?

Of course I know They are "OpenEVSE Shields" for the Arduino, I can cleary see the single row of pins at the top and bottom, designed to mate to the Arduino

its either that, or perhaps you made your own "LCD backpack" for OpenEVSE.. I vote for the shield though

Mitch

 

[chris1howell]

Nope...

 

[JeremyW]

Nope...

You upgrading to the "Mega" i.e. ATmega1280?

 

[chris1howell]

Good observation Jeremy... but it is not the "Mega" and it is not an EVSE... but it IS for the Leaf.

 

[mitch672]

Are you working on an SOC meter perhaps, couldn't be much else...

 

[lukati]

a CAN bus Arduino shield?

 

[chris1howell]

You got it Mitch... It's a CAN backpack for a 16x2 LCD. Based on the Open Source code and Schematics from Lincomatic. http://blog.lincomatic.com/

It is very small, inexpensive and Open...

 

[mitch672]

You got it Mitch... It's a CAN backpack for a 16x2 LCD. Based on the Open Source code and Schematics from Lincomatic. http://blog.lincomatic.com/

It is very small, inexpensive and Open...

nicely done! You're going to put garygid out of business... I'm sure he appreciates your efforts.
so it just plugs directly into the OBD 2 connector?

FYI, here is the exact post: http://blog.lincomatic.com/?p=459" onclick="window.open(this.href);return false;
I see it is based on garygids work, nice.

 

[chris1howell]

I don't want to put gary out of business, if I can make his kits a lot less expensive and easier to assemble that would be great...

 

[QueenBee]

I don't want to put gary out of business, if I can make his kits a lot less expensive and easier to assemble that would be great...

A better question is will this be able to compete with the LeafScan

 

[chris1howell]

Well the thing Phil has going for him is the secret decoder ring... once the rest of us mortals figure it out the two devices can display the same info.

 

[eHelmholtz]

Well the thing Phil has going for him is the secret decoder ring... once the rest of us mortals figure it out the two devices can display the same info.

Nicely put, Chris!

 

[Thinwing]

Please put me down for soc /rgb backpac when available..kpc

 

[richard]

Received a fun package from Chris today. I have to commend him on the new packaging.

Chris has recently made a change to the OpenEVSE PCB. This is a February board:

This is the new design. It has some modifications that are mant to work better with the new power supply module.

The new design has a 12V passthrough hole at the bottom. The current transducer connection at the upper right is left without the male header, which is better because the typical DigiKey CR8420 comes with bare wires. There are also some PCB marking changes all around. If you look really closely, there are also some new holes to the left of the LED and above the D4 pin hole.

 

[chris1howell]

Glad you recieved your package.

You are correct the changes are the addition or 12V on the board to board connector for use with the advanced power supply, eliminating the external wire to power the EVSE. There are actually 5 vias (holes) two hidden are under the voltage regulator. I also increased the ground plane around the large tab, by default there was just 4 little traces to ground its solid now. The changes help to keep the regulator cooler by using both the top ground plane and bottom (connected by the vias) as a heat sink... and it works really well...

 

[garygid]

What is the price for these OpenEVSE components:
1. OpenEVSE board (built and tested), with GFI
2. same, without GFI
3. Advanced Power (kit)
4. same, built and tested
5. EV-emulator Kit
6. same, built and tested

Is there a suitable 240v 32A (or 40A) DPST (n.o.) Relay Kit, or links to suggested part(s)?

Is there a companion 2-line LCD display, or links to suggested part(s)?

Continued Great work, Chris!

----------
I received the EVSE-Shield Kit,
and the EV-Emulator Kit. I will build it as soon as I get my Taxes filed. :roll:

----------
(Chris, I got the prototype SOC-LCD-Meter board, Thanks. I got a white-on-black 4-parallel 2-line LCD from Sparkfun, and I got their FTDI USB (mini) Port board (for logging) as well. I have ordered a 0.1" x 16 male header to solder to the LCD display to plug it into the SOC proto board. After I get this prototype working, I will find some board-mountable parts and suggest some board changes to make it easier to attach buttons, switches, and package it.)

 

[chris1howell]

Hi Gary,

The OpenEVSE Components are:

OpenEVSE board
Kit N/A - Built and Tested $80 - waiting list 2 -4 weeks
Basic Power Supply
Kit $35 - Built and Tested $45 - waiting list 2 -4 weeks
Advanced Power Supply
Kit $45 - Built and Tested $55 - waiting list 2 -4 weeks
EV Simulator
Kit $15 - Built and Tested N/A - avaliable
OpenEVSE Arduino Shield
Kit $45 - Built and Tested N/A - waiting list 1- 2 weeks


Below are links for two examples with links to parts, the first is a L1/L2 30A EVSE and the second is a L2 only at 75A. For any EVSE over 30A I would reccomend L2 only with a heavy duty contactor...

http://code.google.com/p/open-evse/wiki/ExampleEVSE

http://code.google.com/p/open-evse/wiki/EVSE_Example75A

OpenEVSE supports expansion over the i2c bus. I would reccomend any standard 16x2 LCD with the adafruit i2c "backpack" http://www.adafruit.com/products/292 or the Adafruit RGB LCD http://www.adafruit.com/products/714http://www.adafruit.com/products/716.

 

[leaf4me]

http://code.google.com/p/open-evse/wiki/EVSE_Example75A

Chris,

Just a small note that the referenced web page has a typo in the URL for the 75A contactor: it has "hhttp" instead of "http".

Steve

p.s. Thanks for producing such and excellent product!

 

[chris1howell]

Thanks leaf4me... I fixed the typo.

 

[garygid]

Basic and Advanced Power Supply:

1. What's the difference?

2. When is the Advanced needed or desirable?