I am trying to figure that out how to do it. I am using one of the flight controllers to detect when the plane is touching the ground and that tells a 'servo" to move the gear from hanging to landed or vise versa. and on takeoff the gear drops as fast as the "servo" lets it but on landing it squishes super slow and I can only imagine that is the flight controller doing some thing.
Do I feel The interlink dx is broken? No... 12o' and a few others says theirs is fine. but brokedad has concurred that his is doing someing thing similar to mine. I bought mine at my local hobby store got home plugged it in. the switch layout was a little strange made a custom layout to match the older interlinks so I did not have to edit a couple hundred avs. noticed after calibrating in rf the centering was not quite exact. move the stick one way it would center fine but move the stick the other way and it would be off a couple percent 2%. so I but a flat spot in the curve near the center point. recalibrating would some times switch which way the off center was based on which way the stick was moved and some times it would only be 1% but on both directions. no big deal a little dead band can fix that issue then it got worse and worse 3%, 4%, 5%, then 5% and it not centering in the other direction. and a couple days ago it was reading 10% with zero stick pressure. and through all of this you could watch the output dance around when the remote sitting still on the desk. I have tried different usb port thinking dirty port, electrical noise, etc. not the issue currently the right stick is the only one that has the issue aileron being the main offender. the rudder is still a little off but it has not gotten any worse.
so back to your question, Do I feel The interlink dx is broken? No. quality control issues possibly can not say for sure the sample size is way too small to be able to tell. I may have a lemon or I have issues with my computer some that I know about and some that I may not that may be causing my symtoms.