Security Plate, a pressure plate detecting the weight changes with light sensor built with LEGO Mindstorms EV3

A phone holder that rings an alarm when the phone is picked up. It is a plate, lying on rubber wheel, that changes its height, based on the weight of the object placed on top. The color sensor detects these changes and rings the alarm. With some fine tuning, this robot can even act as a weighing machine.

This material requires a subscription to one of the following plans: FLLCasts Personal B One Year or FLLCasts Team Six months or FLLCasts School Student One Year or FLLCasts School One year

In order to build the full construction, you'll have to subscribe to FLLCasts.

Image for Security Plate, a pressure plate detecting the weight changes with light sensor built with LEGO Mindstorms EV3

Learn more about the subscriptions

Building instructions delivered to your device by 3DAssemblyInstructions.com

  • #640
  • 08 Feb 2019

To construct you need

  • LEGO Mindstorms EV3 45544 Education Core
  • LEGO Mindstorms EV3 45560 Education Resource

Bill of materials (Parts list)