Arduino Oscilloscope

Intro

Arduino can be used readily as an oscilloscope using a simple arduino program and a simple interface using a Processing program. See example at https://www.hackster.io/lucian_vdo/arduino-oscilloscope-9eb08b

• Good for 5 kHz
• Requires a computer with display, so not that practical when it comes to mobility
• Would want a standalone Arduino oscilloscope.

Tethered Oscilloscope

• A poor man's oscilloscope is an Arduino connected via USB to a computer which uses a Processing code running on your computer - https://www.build-electronic-circuits.com/arduino-oscilloscope/
• Using a Complex Programmable Logic Device (like FPGA but simpler) Arduino shield - [1]
• From scratch by a physics guy - not complete - [2]
• Using Processing with good visual interface, 4 channel - [3]

Untethered Oscilloscope

• Decent, basic version with LCD, but not sure if axis scale code is included - [4]
• Good theory but no product by a physics person - [5]