Automatic Slime detector Tutorial

Hello,

This is my first Blog Post on Planetminecraft. It's a Tutorial how to build a Automatic Slime detector!
Step by Step tutorial:
1. Build a big room.
2. Place Tripwire Hooks in the 4 corners
3. Connect all Tripwire Hooks with Tripwires
4. Place Redstone to connect all Tripwires.
5. Build a Redstoneclock and connect the Clock with Note blocks and RedstoneLapms
6. Optimal: Build a Lever and to deactivate the Clock. If you have enough Slimeballs and you hate the Noteblock sounds.
7. Wait.
If a Slime Spawns they go to the wall and activates the Tripwires. The Clocks run and the note blocks plays the "song". It will only works with Slimes and Magma Cubes
Have fun with it!!!
Video:
Video is coming soon.