Addon: Helpful Blocks by PurpleByte
Author: PurpleByte
PurpleByte offers a collection of machines and control blocks for survival automation. Combine transport, crop handling and sensors to build systems that perform routine work for you.

Moving and sorting items
Vacuum Hoppers gather nearby dropped items into connected storage. Conveyor belts carry items and entities horizontally, with vertical conveyors lifting items upward. Fans push objects forward, launchers throw them in a chosen direction, and sorting funnels pass selected items between inventories.
Automatic work
Block Breakers and Placers remove or place blocks in front of them. The Right Clicker imitates item use. Planters sow seeds, Harvest Blocks gather mature crops without destroying farmland, and Tree Cutters remove connected logs. An Auto Crafter follows a configured recipe.
Control and protection
Pulse Generators, Delay Blocks and Toggle Blocks shape redstone signals. Wireless transmitters and receivers connect separated circuits, player detectors respond to visitors, and inventory sensors check empty or full storage and selected items. Spikes, fire spikes, powered electric fences and crushers add defensive hazards.
Matching elevator blocks move players between floors, while launch pads send them upward. A Trash Block permanently destroys unwanted items, so keep valuable storage out of its feed. The in-game guide explains block functions. The addon supports solo and multiplayer use.
How to install the add-on
Download the .mcaddon or .mcpack file, open it with Minecraft and wait for the import to finish. Then enable the resource and behavior packs in the world settings. If the add-on requires experiments, turn them on before launching the world.