Oscilloscope Online

Purpose

To create a tool that can show live data from experimentations with a wide variety of customizable options. The project is useful for assisting in research works.

Description

An online Oscilloscope that lets you read data from your serial device and plot a graph of it. At the moment, it can plot 4 graphs.

The plotter gives you many customization options which includes the following:

• Minimum (x, y) coordinate
• Maximum (x, y) coordinate
• Gap between the main grid lines for X and Y axis
• Enable or Disable the Sub-Grid
• Enable or Disable denoting each reading with a dot
• Customize the title of the X-axis and Y-axis
• Baud Rate of the Serial Device
• The port to read data from

The website also provides a link to the code for the website as well as a link telling how to use the oscilloscope locally which offers even more customizable options.

You can find the Oscilloscope here

Upcoming updates

• .csv Export
• .svg Export
• .pdf Export
• Custom number of graphs
• Custom colors for each graphs
• Resolution Slider

Example usage

Reviewing the effects of changing the resistances of a fixed resistor on the sensitivity of an LDR Potential Divider

The experiment

• Changing the fixed resistor in a LDR potential divider can change the sensitivity of the detection of the light intensity
• In this experiment I have used 4 different fixed Resistor values

  • Graph Color	Fixed Resistor
    Red	1k Ohms
    Blue	10k Ohms
    Green	100k Ohms
    Yellow	1M Ohms

• Initially the Light source is extremely close to the LDRs (at point no 60), then the distance between the source and the LDR is slowly increased all the while the Oscilloscope-Online is plotting live data

The Circuit

The Output