The BitScope was originally released in a Circuit Cellar article back in August 1998. Since the release of this design (and the unit offered here) the BitScope has gone through a lot of updates and enhancements but still works around this original core design.
The BitScope software (DSO) runs on any x86 compatible PC that has a 400 MHz or better CPU with at
least 32MB RAM and has a compatible RS232 serial connection.
Even with an RS232 serial link, DSO is fast. Using advanced DSP and high performance data compression, DSO is able to achieve display refresh speeds of up to 7Hz.
You can download DSO for Windows or Linux free of
charge. You'll need a BitScope to use this software of course but you can
run it without one to see how it works.
Take a look at the screenshots below to see what it looks like,
or run it on your PC and try it out.