SPARK motor controllers are a very good option. Their performance and size is similar to the older Talon SR, which has proven reliability over many years of service.
The SPARK was unproven at the beginning of 2016, but our experience with it during the past 12 months of intense practice has convinced us that it can be trusted. We have bought several more since building
Sparky. We used them on demonstration robots all year, and plan to use them again in 2017.
__________________
Richard Wallace
Mentor since 2011 for FRC 3620 Average Joes (St. Joseph, Michigan)
Mentor 2002-10 for FRC 931 Perpetual Chaos (St. Louis, Missouri)
since 2003
I believe in intuition and inspiration. Imagination is more important than knowledge. For knowledge is limited, whereas imagination embraces the entire world, stimulating progress, giving birth to evolution. It is, strictly speaking, a real factor in scientific research.
(Cosmic Religion : With Other Opinions and Aphorisms (1931) by Albert Einstein, p. 97)