R2-D2 Dome Mechanism Part 9 by Matt Zwarts Remote Control

thingiverse

This is a simple button I designed to ground the trigger pins on the dome mechanism, utilizing switches identical to those used in the rest of the lift mechanism. All switches are grounded on the common (C) pin and Normally Open (NO) to the Arduino Mega's I/O pin, triggering the dome function. Switches: https://www.banggood.com/10Pcs-Micro-Limit-Switch-Roller-Lever-5A-125V-Open-Close-Switch-p-945733.html?rmmds=myorder&cur_warehouse=CN I hope this design helps you get your project working, and I created it to use at a Maker Faire for others to activate the dome mechanism on the table. I added a 5mm LED to the holo and connected 5V and GND from the Arduino to show it's connected. Happy building!