A worlscanner is a peripheral that would be able to detect the blocks around it in a given radius. It would take coordinates of either a single block , a radius or a 3 dimensional area given as 2 sets of xyz coordinates. it will go through the blocks and return a table or a single entry for the blocks it found in its environment. Maybe also include blockstates or NBT Data. It could additionally take in Forge Energy to increase its search radius