This guy has actually done it.
Usually the answer here is “just buy one” and “it’s not worth it”.
An old crewmate of mine asked me about GPS strokecoach units.He couldn’t justify the cost of an NK or Coxmate unit, then found these.
It helps that he’s an electronic engineer and software designer.
He explains how he did it and some of the standard parts he uses.
Might be helpful to anyone who was *really* wanting to build their own.
My crewmate is …read more
Via:: Reddit Rowing