I am trying to make a mob spawner trap with instant fall to lava lake.
The actual thing I need to connect is (the block below piston isn't needed):
I figured out double negation connection with 2 torches and 2 repeaters per piston, but it takes out a lot of space:
Is there anything more compact? I thought people are making those huge enderman farms with pressure plates. That would be a lot of repeaters.