I apologize in advance, there’s a lot to read here because I wanted to be detailed. I have set up my Arduino Uno using a L293D Motor Drive Shield and two 9v power supplies (one for the arduino and one for the shield/motor) to take in commands from a connected bluetooth module triggering the door mounted motor to spin and then reverse, with a string tied to both the handle and motor, attempting to unlock a door handle by pulling the handle down and then “re-lock” it by reversing. The way I currently have things set up is with a 100 RPM DC 12V 90N.CM torque Gear Box Motor. This motor obviously does not have enough torque to pull the handle down. Maybe a higher torque motor? I was wondering if anyone could guide me as to what I can do. Thank you!
- I can’t modify the door or door hinge in anyway as its for a college dorm door.
- I’m mounting the motor to the door using either removable high strength command strips or a high strength suction cup.
- The door locks with a push button, and the handle is a regular handle (NOT twist handle).
- The door will be always locked (pulling the handle down from inside temporarily unlocks it).
- The door handle requires a decent amount of force to pull down ( a soda bottle filled with roughly 2.7 pounds of water tied to a string pulled it down)
- I have searched for a while reading seemingly endless similar attempts with no luck.