Run Redstone Dust from the Pressure Plate location to the block holding the torch.
When the plate is pressed, the torch turns off, causing the pistons to snap shut. lovely craft piston trap wiki full
At its core, the Piston Trap relies on a and a sticky piston array . When a target steps on the trigger block, the pistons extend blocks horizontally or vertically, sealing the exit and suffocating the entity or dropping them into a secondary hazard like lava or a deep pit. Required Materials Run Redstone Dust from the Pressure Plate location