Door Knocker/Thumper/Banger powered by Wiper Motor - Halloween Scare

**02/02/2019 Added information for control circuit

**If you end up making this project, I would love to see a pic in the 'Post a Make' section! :-)

Homemade Door knocker/thumper/banger using rubber mallet, some 3D printed parts, wood, and a wiper motor. For Halloween Scare!

Video for control circuit:
https://youtu.be/YMU_4FIxcbk

Link to UPGRADE models: https://www.thingiverse.com/thing:3102798
UPGRADE video: https://youtu.be/prDvl66kK8A

https://youtu.be/lFoxJc9jLHI


Parts Li