widdly Posted February 22, 2007 Report Share Posted February 22, 2007 I've got a digitech jamman pedal (http://www.digitech.com/products/JamMan/JamMan.htm). I use it record guitar loops and jam over the top of them. Unfortunately it doesn't have a midi port or clock signal so I can't automatically sync it to other equipment.It does however have an led that flashes for each beat. My idea is to stick a photo diode or an LDR onto the flashing led and feed it to a digital input on a MB core. Alternatively I could connect a diode and a plug in parallel with the LED inside the Jamman and use this to connect to the digital input on the core.In the core I could write an application to measure the time between each pulse, divide it by 24 and then use that value to send the midi clock messages. I could program the core to start and stop the clock in response to another digital input connected to a foot switch. I think the software shouldn't be too much trouble since I've done a lot of c coding before and I should be able to reuse much of the midiclock application the TK has written. I'm more concerned with a good way of getting from the flashing led on jamman into a digital signal on the core.Any ideas? Do you think this would work? Quote Link to comment Share on other sites More sharing options...
der.warst Posted March 30, 2007 Report Share Posted March 30, 2007 Hey, currently, I'm looking for something pretty similar for my Casio DM-100 which also has a LED blinking to the beat. I was thinking along the LDR technique, too. but maybe one fourth of a 4016 quad switch would give a cleaner digital signal... Please tell me about your progress. I don't know how to code, so I'd really appreciate anything you come up with.Do you think the application could work on a 16fxxx Pic? I have a few of them lying around and would really like to put them to a proper use... cheers, der Warst Quote Link to comment Share on other sites More sharing options...
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