Voltage Level Indicator Project

In this lab, students will design and build a voltage level indicator, applying the knowledge they have learned from earlier labs into a hands-on application. This very practical circuit uses a voltage divider and op-amp comparator network to light up a number of LEDs depending how much voltage is provided by a source under test. Students will design and test their circuits in Multisim Live, then build them using the NI ELVIS III.


This is lab 13 of 14 in the course, Analog Electronics.


After completing this lab, students will be able to:
  1. Describe how a voltage divider works.
  2. Describe how an op-amp comparator works.
  3. Implement major concepts learned throughout the course into a real-world example.
  4. Design and implement a multi-level voltage indicator.


  • Basic proficiency using Multisim Live
  • Basic proficiency using ELVIS III Instruments
  • Basic knowledge of breadboarding
  • Basic knowledge of components and their behaviors

Required Software

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Required Hardware

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