Possibly the future in motion controllers?

[Riton]

if you need i can help to test in my simulator too, for exemple ican buy a card too , and help for test with AC motor or Wipers....
I think you need pepole test and give you information, bug, problems...

[ferslash]

Dear Thanos:

Again me (the guy usless in electronics) this new card you are propousing also needs to be connected to a h-bridge to control the dc motors? or i will do all the job?

(would be nice if you give us a paypal botton to danate to this cause, or should we use the donate botton at the top right of this page?)


(just as a wish letter to santaclouse...it would be nice to have an alternative to pololu.... i mean... as easy as pololu but, cheaper... (pololu takes $200 usdlls)... i was going to construct the sabertoot option but it seams to be hard to set-up )

(a humanistic note: Dear thanos, i understand that you are greek, i am mexican, our cultures have a number of characteristics that coul make us thing that some guys from a saxon culture are rude... but they are not, they are just practical and direct) best regards again from mx

fer

[telfel]

Hi Thanos

Can i ask if you use the development board to develop the firmware, do you intend to use the dev board on the simulator or design your own hardware?

regards Terry

Having read the posts again, you intend to use the dev board on the sim, so no pcb production required.

I found this board on the olimex site which may suit your purpose, https://www.olimex.com/dev/index.html
OLIMEXINO-STM32 MAPLE / ARDUINO LIKE DEVELOPMENT BOARD priced at 20 euros. with a nokia lcd display add on for less than 7 euros.

[tronicgr]

your card : http://dx.com/p/open107v-arm-cortex-m3- ... kit-150519
is not very expensive , i think it's correct for a simulator card.
i can help you if you thik is a better solution , you are the boss!!

Hi Riton,

Yes, its not expensive solution for what it offers. The same board can be found alone in other places cheaper, but the peripherals that come with this particular make it easier to me to experiment on interfacing. I don't have any 3.3v devices to test with except a 5DOF Gyro/accelerometer sensor.

But keep in mind that its not just copy-paste to transfer my firmware on this. I want to re-make it even better and more user friendly.

Thanos

[tronicgr]

@ferslash

Of course it needs to be connected h-bridge or to AC drive if you prefer. The microcontroller is just processing the motor position control signals and provides the correct signals for DC h-bridges or AC Drives. This way you can select any h-bridge or other drive you want for any kind of motors, based on your budget of course.

For donate button, I placed information on the first post of this thread.

Its still quite cheaper than pololu JRK12v12... Just imagine that you can use this and two cheap dual motor drivers (for a total cost around $170) to be able to drive and control 4 motors same power as JRK12v12!!

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@ telfel

Nope, I don't want to be involved into building these, it too much hassle and you can find them cheaper anyway on various chinese marketplaces. This dev board will be a starting point and around it we may build some specialized interfaces or not if we can source some ready ones.

You mean this board? OLIMEXINO-STM32 MAPLE
It looks good, but it lacks easy touch LCD connector and you have to hardwire a lots of peripheral devices to make something out of it. Also its a smaller microcontroller with less memory than the STM32F107VCT6 in the dev board I proposed and that can be issue if you need to use graphics.


Thanos

[tronicgr]

Got $24 of $97 of the donation so far! Thanks!!!!


Thanos

[tronicgr]

If you wondering how this dev board could be connected to 5v TTL level h-bridges or other devices here is a cheap opto-isolation solution:

http://www.futurlec.com/Mini_Opto_Isolator.shtml

Enjoy!

[motiondave]

OK, I donated $25 AU, lets see what you can pull out of that hat!

[telfel]

hi Thanos

had a quick look at the http://www.wvshare.com/product/Open407Z-Package-A.htm site.

would it be worth using the F4 processor the A package is 40 dollars more expensive, the standard board and the lcd touchscreen is 78 dollars which I

figure is all the rest of use need as a controller for the sim.

The reason im suggesting this is some of the flight controllers for multirotors started with F1 chips on the copter control board, and are now upgrading to F4

chip for the new CCD3 and revolution boards, just a thought for future projects.

link to open pilot web site http://wiki.openpilot.org/display/Doc/O ... umentation

regards Terry

[motiondave]

one controller at a time please.
I have donated to one, so please find a good idea on controllers