Hello, I have some servo stuff to add, too. http://emanual.robotis.com/docs/en/dxl/ax/ax-12a/
That link brings you to a servo that I purchased a while back. It handles different voltages, as some servos do. I noticed that 11.2v is the recommended voltage. Also, if you look around on their github.com site, that page, and other pages associated w/ their tools and hardware, you will find some "more-than-regular" ideas listed. For instance, look here: http://emanual.robotis.com/docs/en/software/dynamixel/dynamixel_sdk/sample_code/c_read_write_protocol_1_0/#c-read-write-protocol-10 That source can be installed via git and if you have particular motors from their company, you can use the source to read, write, etc. I just cloned via git their source and used *make* and *sudo make install* to compile their source on the BBB. I have a BBB w/ a RelayCape on it. Now, I know I have a 12v battery, an AnyVolt Micro which can be here https://www.dimensionengineering.com/datasheets/AnyVoltMicro.pdf, and some ideas from reading. I am not trying to sell these ideas or have you purchase new servos. I just wanted to add in and add context. I will try to put together an AnyVolt Micro circuit w/ a 12v battery, the RelayCape, and the BBB. It may take awhile from now. I state that b/c I do not want to ruin my Cape, the BBB, or the work I have put in so far to make things work. Seth P.S. If anyone gets bored or sees an issue I may have overlooked, do not hesitate to jump in and tell me the truth. On Saturday, April 18, 2020 at 6:03:28 AM UTC-5, Tobias Bocanegra wrote: > > Hi, > > I would like to drive FeeTech SCServos: [1] > unfortunately, the documentation is not very good. more here: [2] > > As far as I understand, it is controlled via half-duplex uart. > so, without having to buy the mentioned TTLinker board, I think it needs > at least 6v on the *V* pin. > but looking at the pinouts [3], all the UART pins only have 3.3 or 5v. > > Looking at the schematic, I think that the servo pins have regulated 6v. > > so my question: > - do you think it's possible to create an UART port using the PWM pins? > - or can I take the 6v from a servo pin, and the tx+gnd from the UART DSM? > > Thanks. > Regards, Toby > > > [1] > http://www.feetechrc.com/product/digital-servo/feetech-scservo-multi-purpose-uart-bus-robot-servo-for-arduino-diy/ > [2] https://ecksteinimg.de/Datasheet/MO01016/SCS15.pdf > [3] https://github.com/beagleboard/beaglebone-blue/wiki/Pinouts > On Saturday, April 18, 2020 at 6:03:28 AM UTC-5, Tobias Bocanegra wrote: > > Hi, > > I would like to drive FeeTech SCServos: [1] > unfortunately, the documentation is not very good. more here: [2] > > As far as I understand, it is controlled via half-duplex uart. > so, without having to buy the mentioned TTLinker board, I think it needs > at least 6v on the *V* pin. > but looking at the pinouts [3], all the UART pins only have 3.3 or 5v. > > Looking at the schematic, I think that the servo pins have regulated 6v. > > so my question: > - do you think it's possible to create an UART port using the PWM pins? > - or can I take the 6v from a servo pin, and the tx+gnd from the UART DSM? > > Thanks. > Regards, Toby > > > [1] > http://www.feetechrc.com/product/digital-servo/feetech-scservo-multi-purpose-uart-bus-robot-servo-for-arduino-diy/ > [2] https://ecksteinimg.de/Datasheet/MO01016/SCS15.pdf > [3] https://github.com/beagleboard/beaglebone-blue/wiki/Pinouts > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/975b459c-4df9-451a-a355-297c658d5487%40googlegroups.com.
