How do I make a keycard toggle a card reader as active?

Hey everyone,
I’ve just built an inventory and crafting system using Insomnia from BlenderTeks tutorial on youtube (thank you for posting that btw). I’m able to pick up items, destroy them and then add them to the inventory. But now I want to be able to pick up a keycard and use it to open a locked door using a card reader. I’ve tried having the inventory check for the keycard and toggle the card reader as active, but I’m not sure I’m doing this right. I was hoping someone would have a way to help me.

a boolean variable should solve that, when you pick the card turn that to true and check the card reader, if its true, ok you can open that.

Thank you for the response. I was thinking about doing something similar, but I couldn’t figure out how to get the engine to check my inventory to see if the card is actually there. I tried replicating the steps in this video: UE4 Tutorial | Use Keycard to Unlock Door - YouTube
, but I couldn’t figure it out. I used the check inventory interface to run to my actual inventory instead of a string variable like he did. But it didn’t work.

If anyone is trying to answer this question I found this video to be the most helpful: UNREAL ENGINE 4 : Key-Door Basic System Part 1 -settings- key mesh-key blueprint-sounds-scene - YouTube

This video: UE4 Tutorial | Use Keycard to Unlock Door - YouTube works if you don’t have an inventory system set up. But the first video works better with the inventory/crafting system I set up.