- Joined Jan 31, 2016
So I've looked through a lot of the discussions on Linear actuators here, and none seem to apply. I've got an off the shelf Linear actuator (Datasheet can be found here http://www.windynation.com/cm/Actuator Manual_R3.pdf). I'm building up a TV lift. You'll notice this actuator is very basic. Its UP and DOWN controlled by the polarity of the 12VDC applied. It has integral limit switches, and no feedback or anything fancy. I'm looking for the lowest part count method of driving this from an MCU Pin. (I'm going to in the end drive it with a PIC). From the MCU I want to be able to drive UP and DOWN. I thought of driving two relays each from a separate MCU Pin, and handling the interlocking in the MCU firmware, but that leaves a risk that if for some reason both pins drive I should dead short the load. I've heard people talk about using a DPDT relay with a CENTER OFF, but honestly I've never been able to find such a part in any catalog..... Looking for any guidance.