So here is the followup to my last Bliptronome post. As I said I bought a bliptronic-5000 from thinkgeek over christmas break and was working on it back at home. I didn’t have very much for spare parts or tools, so I had to make due with that I had.
Here is my first prototype. I learned a lot with this, not the least being that using old ide cables can be a very frustrating way to prototype. After re-wiring the arduino 3 or 4 times I finally tested the cable only to find that 5 of the pins were all grounded internally (somehow). I ended up with the breadboard here and it worked out for a test.
I chose a right angle header for the cable, as anything else would definitely make it too tall for the case. I messed this up though, as I should have run the connections and then soldered in the header. I had to make a lot of awkward connections because the header obscures the bottom of the solder holes.
I also had to cut short the icp headers to make way for the ribbon cable. No loss, as I have no need for that anyways. They are intact in this shot, but they are the 2 rows of 3 pins in the middle of the two boards.
Here you can see one half of the pulldown resistors in. People get confused by the orientation of these. A wire comes from the pin of the arduino and then connects to two wires, one is a resistor that goes to ground, and the other goes to the header. Think of it as a 3 way intersection. Also just to confuse people further, the wiring isn’t finished here. It still needs a wire to connect each resistor to an arduino pin.
Next step, sourcing and mounting some pots. Here are some knobs I picked up. The pcb seems to encroach on the pot hole, and the holes seem slightly small for most pots, so it might be a tricky fit unless I modify the case.
Still a little bit lost? Or wondering what one can do with the hardware? I’ll do a brief introduction to the world of monome in my next post.