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?