kh602:
did you draw the schematic up or did someone else?
I did everything myself except for the MIDI IN/MIDI THRU which reminds me that I have to find that link again to credit it...
kh602:
i am not working on the relay side of things just yet, more interested in the foot controller sending
the serial midi protocol. I have the behringer fcb1010 foot controller and i think its pants. Doesnt seem
to work the way i want/thought it would with the ada or through cubase.
When I was researching this, I found a TON of projects that send MIDI data from the Arduino so you should be able to get a lot of examples. Where I had trouble was decoding MIDI data but I think I've got that solved, unfortunately I can't test and finish my code until the hardware is done though ;). I'll reply to your thread with my thoughts on this.
kh602:
surely you need transistors on the 8 outputs of DT1 to switch in the relays so more juice is provided for
leds and coils?
If I understand it correctly, the way the Darlington Array (ULN2803) works is that it controls the connection to ground hence the 5V rail being connected directly to the relays AND to pin 10.
I just realised something though, since I have everything connected to the same 5V rail, my resistance might be off everywhere. I might need to rethink my power situation. Also, I left off a ground symbol that should be connected to the GND pin (8) on the ATmega328, I'll fix it later.