school project

[Thomas.R]

i have to make a school project as i am following evening classes electronics. So  i thought i would take something with effects, but the only catch is it has to include digital blocks.
does anyone know a project with several digital components where i don't have to program.

Thomas

[dxm1]

You could include digital switching to the effect...

http://geofex.com/Article_Folders/cd4053/cd4053.htm

[The Tone God]

Vanishing Point.

Andrew

[anchovie]

The Echo Base has a PT2399 digital delay chip at it's heart and CMOS digital switching.

[Seljer]

i once drew up a A/B/C box for 3 footswitches that used flipflops to remember what channel is currently selected (or you could use the logic part to control 3 effect loops or well....3 of anything, it would extend to more channels too without any trouble)

or anything with flip flops really (the CD4013 mentioned in the geofex article linked), they're like the basis of RAM in all computers

....or maybe a MXR Bluebox, that uses one of those too for the octave down part

[frequencycentral]

A CMOS distortion? I think its a 4066 circuit.

[Paul Perry (Frostwave)]

CMOS distortions are good musically, but they use the "digital" chips in an analog way, so they won't qualify for the school project.

how much 'digital' is needed in the project? Are we talking microprocessor or just a few bits of logic?

[Thomas.R]

just a few bits of logic.
i found a digital pot, which would be interesting to do maybe.
Thomas

[gez]

just a few bits of logic.
i found a digital pot, which would be interesting to do maybe.
Thomas

Somewhere, there's an app note for a phaser that uses digi pots.  Anyone got the link?