Open Source Hardware Project.Â
Lego's!
There are several projects that link the 2 platforms via i2c, a standard hardware communications protocol.
http://www.hitechnic.com/cgi-bin/commerce.cgi?preadd=action&key=SPA2017
Oscilloscope:
Makes Electrical Waveforms Visible in both the Time Domain(Signals changing with time) and Frequency Domain(Signals changing in frequency)
Measures: Static(not changing) Resistance, Voltage and Current