Am I able to use a level emitter with an export bus in AE2?? If yes, how?
Yes indeed. That's usually used to keep some amount of an item stocked in the AE system. Say, for example, you wanted to make sure you always have 1024 blocks of glass on hand, and you already have on-demand autocrafting for glass set up. You could place down an ME Interface somewhere, and stick the Export Bus on the side of it. Configure the bus to export glass when given a high redstone signal (which may require a redstone card), give it a crafting card, and place the level emitter in an adjacent block facing the export bus. Configure the level emitter to emit a redstone signal when there are less than 1024 blocks of glass in the network.
Now, whenever there are less than 1024 glass blocks, the level emitter will turn on, turning the export bus on, which will then start crafting up more glass, which then gets dumped into the interface and back into the network.
At least, that was probably the most common use in AE1, but there are certainly others. In AE2 (but NOT AE1; I tested it, it didn't work in that version), if you just want to stock some items, you can simply place a storage bus on an Interface, then tell the Interface to stock the items you want stocked. The storage bus will allow you to access the stocked items, and the interface is smart enough to not refill itself by pulling items from itself.
