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[on:]

This is nothing yet... just a quick test to see how fast is is. I do a simple loop from 0 to 319 and send an analog input (scaled to 0...239 with map()) to Tft.setPixel() and it works!

(click for video)

[Reply #1 on:]

Good stuff - you might need to do a little more work on it though

If you want inspiration look at the xprotolab and xminilab:

[Reply #2 on:]

Good stuff - you might need to do a little more work on it though

I just tossed it together to see if it would work and upon seeing the sine wave I laughed just because it was SO COOL!

In reality, it's not fast enough to be a "real" oscilloscope (and it would never beat my HP DSO), but it was neat anyway.

[Reply #3 on:]

Cool - but cooler with a trigger input?  Add a pot to one analog input to set the trigger level - not that much more work?

[Reply #4 on:]

Cool - but cooler with a trigger input?  Add a pot to one analog input to set the trigger level - not that much more work?

You're tempting me! I may just go ahead and make a full blown scope out of it!

I'll have to add it to my list of projects "to do".

The big one I'm working on now is for a research project at the university here (my employer). I used to use Motorola 68HC11 EVBU boards for student projects, but the Arduino is SO much easier to program (C vs raw assembler) and the 328P has a lot more memory than the HC11 (the HC11 only has 512 bytes of SRAM and 512 bytes of EEPROM and no flash at all!).

For every project I had to build daughterboards ("shields" in Arduino-speak) for I/O, memory, D/A, etc... now all of that is built into the chip - which costs less and is easier to program.

Code that would have taken me weeks to do in ASM I've done in only a few days with the Arduino. Wish I knew about these a lot sooner!

-- Roger