page 17 of the manual that Dennis attached implies that a serial interface module is needed. see the second caution on that page.
On Friday, March 19, 2021 at 7:24:31 AM UTC-5 Dennis Bieber wrote: > On Thu, 18 Mar 2021 08:27:40 -0700 (PDT), in > gmane.comp.hardware.beagleboard.user Adnane Dinar > <adnane.341-re5jq...@public.gmane.org> wrote: > > >I need someone who know how control a herkulex servo with my beagle bone > in > >python or c > > Typically, servos are controlled by using a PWM signal. cf: > https://stackoverflow.com/questions/50203064/pwm-on-beaglebone-black-v4-14 > > However, the documentation for this servo > > https://www.robotshop.com/media/files/pdf2/_eng_herkulex_manual_20140218.pdf > indicates that this servo uses 115200bps 8n1 TTL level SERIAL communication > -- eg: a UART. > > Unfortunately, the diagram on page 51 indicates that "TTL" means > original 5V TTL. 5V will kill a Beagle -- the pins are limited to 3.3V. The > diode/resistor set shown at the top left /might/ imply that the TTL is > using a pull-up circuit -- in which case feeding 3.3V instead of 5V may be > sufficient. > > > -- > Dennis L Bieber > > -- 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 beagleboard+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/eba5bae0-eb23-4798-a8ed-c19e2efafaffn%40googlegroups.com.
