I picked up a couple LewanSoul LX-16A actuators a few months ago, probably inspired by a forums post. Today I actually started writing a driver for it (Spin sitting on top of FDS). On connecting a 'scope to measure the message turn-around time I saw something I didn't expect. It looks -- to me, anyway -- that the LX-16A is driving the line to 3.3v for a "1" instead of allowing the line to be affected by the pull-up.
Am I mistaken?
I'm almost done with the driver so I'll post it later. The LX-16A doesn't match the Dynamixel, but it is pretty good and quite a lot cheaper.
It's Jon or JonnyMac -- please do not call me Jonny.