Week 12: NETWORKING & COMMUNICATIONS

MIC to LED ARRAY (toward final project)

Networking and Communications is conveniently the last piece of the puzzle for my final project. I basicallly need to figure out how to make my LED array respond to the information gathered by the mic.
This week I finally made my mic input pick up sound info, after much consternation:
All week I was getting NOTHING, just steady static, NO response to sound:

Finally, after a bunch of soldering and de-soldering:

The problem I think was a small strand of hair or something like that that was connecting the + and - of the mic. I am not sure, but that was probably it... It was really driving me to despair. (Thanks for your help Yadid!)
Now I finally have a working mic PCB and a working LED array PCB.

Programming....

I am greatly indebted to guru Matt Miller for explaining some basic concepts in programming to me. It was so helpful. I basically needed to program the following:
For the MIC board:

Do a loop, 1-2-3-4

Make reading

Send High and Low bytes via output pin (MOSI on 6-pin header)

So here's the code:

For the LED Array board:

Get char from input pin (use MOSI on 6-pin header)

Read loop

Read High and Low bytes and MAKE INTO 16-bit int (VAL)

Write what to do with that... how to blink

Here's the code for that:

So I programmed each of them separately, and connected up with a battery source for the LED, the mic conncted via serial for power, and the two grounds and MOSI's connected... AND NOTHING.