If you've got an ARM development board gathering dust in the corner of your shop, perhaps you could repurpose it as an oscilloscope. [Arend-Paul Spijkerman] was able to use an mbed and LPCXpresso as the hardware end of an oscilloscope. He didn't use a standalone screen as a display, instead opting to push the scope readings from the hardware to a computer for display. This was greatly simplified … [Read more...]