I am a software guy who easily gets over his head in circuits. When it comes to controlling motors, I like the ESC because I understand how to use it but it adds a lot of cost. I look into H bridges and most seem overly complicated. This little circuit seems simple anough to understand and implement:
So what's the downside? This is not a hypothetical question. I bought a boat on closeout that should be here tomorrow and it is that "middle grade" of RC - it has an all in one receiver driver board, but has "real" 380 motors, decent enough prop linkage and enough volume to do some USV testing. Possible ways to drive it are to figure out where to tap in to the existing board, get one of the dirt cheap import ESCs and hope it doesn't catch fire or make a circuit to run it. I am not planning on running it at high speed, but more than slow trolling.
I ordered a couple of these:
just as an afterthought while I was ordering a 1280 MiniMega, which you may still see on special there. Did I waste $2? Won't be the first time...