Hi Dr. Caprari, I was thinking of using the y0-y3 pins to control the stepper motor. Would this work ( have no use for the camera )? Also, how did you end up controlling that motor? I'm trying to do it through bluetooth.
On Sun, Jul 26, 2009 at 5:46 AM, Gilles Caprari <[email protected]> wrote: > Hi Myles, > > I’ve also built once a test board controlling another stepper motor (same > as the 2 for the wheels). > > This was controlled by the main processor like the other 2 wheel motors. As > chip doing the motor driver I used a A3901 like in the new e-puck, see > attachment. > > I used 4 digital lines from the main microcontroller of e-puck trough the > extension connector. There are not many still free so I had to take some > normally used for other purposes. For example the ones for the accelerometer > if your application do not use it. > > My solution was thus without an additional microcontroller on the > extension, what Michael proposed you was with an extension including a > microcontroller linked with I2C with the rest of the robot. > > > > Godd luck and have fun, > > Gilles > > ------------------------ > Dr. Gilles Caprari > GCtronic, Electronics & Mechatronics > web: www.gctronic.com E-mail: [email protected] > Post: Via Lavizzari 15, CH-6850 Mendrisio, Switzerland > Tel: +41 91 630 2149 Fax: +41 86 078 601 11 13 > Mobile: +41 78 601 1113 skype: gillescaprari > > > > > > -----Original Message----- > *From:* Myles Honda [mailto:[email protected]] > *Sent:* Friday, 24. July 2009 20:52 > *To:* Michael Bonani > *Cc:* e-puck-user; e-puck-dev > *Subject:* Re: [E-puck-user] Third motor? > > > > Thank you very much, this is excellent! But I am having some trouble > understanding the board functions. These two sandwich each other correct? > Also, I can't seem to figure out where the motor is exactly... > > Myles > > On Fri, Jul 24, 2009 at 4:01 AM, Michael Bonani <[email protected]> > wrote: > > Hi, > > > > We make one time a turret with a third stepper motor, but for this we > develop a special electronics with a second microcontroller and h-bridge. > Electronic is very similar from e-puck one. Than we use I2C to communicate > between the two microcontroller. I attached the pdf of the electronics. > There is two print because we use sliding contacts design two make rotate > one print towards the other one. I think it can inspire you. > > > > Kind Regards > > > > Bonani Michael > > > > > ------------------------------------------------------------------------------------------ > > Tél : + 41 21 693 78 69 > > Fax : + 41 21 693 78 07 > > E-mail : [email protected] > > Adress: > > EPFL-STI-IPR-LSRO1 > > MEB 3 30 > > Station 9 > > 1015 Lausanne > > > > *From:* [email protected] [mailto:[email protected]] *On > Behalf Of *Myles Honda > *Sent:* Wednesday, July 15, 2009 6:49 PM > *To:* e-puck-user; e-puck-dev > *Subject:* [E-puck-user] Third motor? > > > > Hi Everyone, > > I am currently working on a project with the e-puck that requires the > addition of a third stepper motor. Does anyone know if this has been done > before, or have any knowledge as to how this can be accomplished? Thanks! > > > > Myles > > > _______________________________________________ > E-puck-user mailing list > [email protected] > https://mail.gna.org/listinfo/e-puck-user > > >
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