I am trying to assess whether the Lynxmotion LSS servo would be appropriate for a future project. Conceptually, think of using an LSS servo as a drop in replacement for a standard RC steering servo (though this would be controlled with an MCU, not RC PWM signals). I need positional control for steering but also would like torque feedback. The Query Current telemetry could provide a good proxy for torque, but I am curious if the current measurement resolution would be adequate for my project. The LSS - Specifications - Wiki page (linked below) states the resolution is 1/10A, but with a max current draw of 650mA for the ST1, this would equate to only 6 or 7 steps of resolution. Could this be correct?
Conceptually, think of using an LSS servo as a drop in replacement for a standard RC steering servo (though this would be controlled with an MCU, not RC PWM signals).
Actually, the LSS have an RC mode, so they can be used as versatile and configurable RC servos.
I need positional control for steering but also would like torque feedback. The Query Current telemetry could provide a good proxy for torque, but I am curious if the current measurement resolution would be adequate for my project.
That’s generally how torque is calculated for servos.
The LSS - Specifications - Wiki page (linked below) states the resolution is 1/10A, but with a max current draw of 650mA for the ST1, this would equate to only 6 or 7 steps of resolution. Could this be correct?
Correct, given that the second decimal is a bit less reliable than the first (for example, generally speaking) if the reading is 0.35, it may actually be (for example) 0.33 to 0.37.
