nanoscope is an open-source Python-based desktop oscilloscope that works on Linux, Mac, and Windows. It is designed to work with an extremely cheap and portable Arduino Nano (~ $10) for data acquisition. You can find it on GitHub: https://github.com/LeeHolmes/nanoscope, and can see a demo of it running OscilloFun here: https://www.youtube.com/watch?v=ZQVlYfUenzs.
- Single channel or dual channel
- X-Y mode
- Adjustable scale and zoom (both vertical and horizontal)
- Capture and playback of sample data
- Both automatic and interactive voltage and time measurements