By the way - compensation competitive On Monday, February 2, 2015 at 8:04:19 PM UTC-8, ssa...@otherlab.com wrote: > > We are a private research and development firm in San Francisco's Mission > district. > > We could use some help on programming an automation system we are > developing. The control and logic scheme is designed and just needs to be > executed. BBB may be overkill but is common to other systems within the > same machine. > > It is essentially controlling 2 motors. One is an open loop stepper motor, > and the other is a Brushed DC motor driven in a current control scheme. The > motion is set by the stepper motor to a simple constant acceleration and > decel triangle profile, and the DC motor separately provides a modulated > torque (via current). The calculation for the assist torque has a couple > programmable coefficients and is quadratic in nature. Other than that, > there are I/O's for initializing a move and setting distance, or E-stop, > and a reset for a torque-assist variable. I think we have all the correct > interposing drivers etc in place and just need help programming the board, > but there's always room for improvement so open to improvement on the > hardware architecture as well. > > Please let me know if you can help. This is a fun project. Also open to > doing it on a different platform if its easier. > > Best > > Sam Sarcia > ssar...@otherlab.com > >
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