Build a DIY Oscilloscope using Arduino Nano and OLED Display
An oscilloscope is an electronic test device that can monitor the steady change of any electrical voltage using two-dimensional graphs, where the change of one or more electric voltages is placed over time on the vertical Y-axis. In general, every electronic hobbyist or someone interested in dealing with electronics will require an oscilloscope at some point. However, it is prohibitively expensive for students, hobbyists, and that's why in this article we will discuss how to make a mini oscilloscope at home using Arduino.
[original story: Circuit Digest]