getting started

[nick christensen]

I want to build this BMS right away. Is the PCB for sale anywhere. Where do you suggest ordering the parts from?

[Adam Brunette]

Hello Nick,

Ive only been working with this stuff for a little bit,

But if you check out the files here:  https://github.com/rickygu/openBMS/tree/master/PCB%20Design  you will find the PCB designs for the slaves and the BOM for everything. This is for 1 slave board. 

Im not sure where the design for the main board is or if its just something like an Arduino Uno board with LCD shield. Hopefully Ricky will chime in.

I prefer  to order all my parts though digikey. 

-Adam

[Ricky Gu]

the main board right now is mostly just an arduino. Although I think Henry is working on a more customized shield for it thats more plug and play, and the electric car club might have a design of some sort too. 

[Henry Palonen]

Hi all,

Yes, I have drawn an simple Arduino prototype-shield that has 3 60V / 4A SSR's for controlling external equipment with simple screw terminals. It's not tested at all yet - I have received 2 PCB's from BatchPCB and can start to test them soon. My fork is at https://github.com/randomev/openBMS and there are also bash-scripts to prepare everything for sendding to BatchPCB. Future design could have Atmega-ship + Can-shield integrated with this shield, then we would have a one master-board that will have all the necessary equipment for a good BMS master.

With best regards from Finland,

-- 

Henkka

http://randomev.wordpress.com

[nick christensen]

Henkka,

I'm about to begin to make some edits to the layout to make the board more easy to build at home. I'll convert the 0402 parts to larger parts. What was the results of your testing on your branch? Did you build board bms3 or bms3_1?

regards Nick

http://spin.atomicobject.com/author/nick-christensen/

[Carter P]

Hi,

What software do I need to load this PCB files?

Thanks,
Carter

[Ricky Gu]

Eagle Cadsoft

[Carter P.]

Thanks Ricky.

Sent from my iPad

[Carter P]

Hi Ricky,

Which Arduino board did you use?
Is the Uno good enough for basic display of cell voltages on LCD?

Thanks.
Carter

[Ricky Gu]

Yeah that should be suffice

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[Carter P.]

Thanks Ricky.

Sent from my iPad