Inventory match

[Whovian]

For various reasons (Saltpeter production for an automated Tree Farm, I need to keep cells going to the right places,) I need some way to emit a redstone signal if, say, a chest's inventory exactly matches a sample inventory. Is there any way to do this?

 

[Peppe]

red power 2 - regulator does exactly that.

 

[MrCervelo]

I think you can do it with an item detector as well, you may have to use a few of them depending on how many items you require, and then group them with an AND gate.

 

[ShneekeyTheLost]

BC Gate has conditions for '25% inventory' and '50% inventory', which can be used, if you're just trying to count how many of a single item is in there.

Managers can ensure that a particular inventory will always have a specific number of specific items, and request them from other managers when it is otherwise.

 

[trunksbomb]

Alternatively you can use Railcraft loaders or unloaders to achieve the same effect. The chest cart will be moved along when either it is filled appropriately with a loader, or when it or the target inventory has been filled appropriately. It's not as compact though.