learning the ropes

things I made at ITP and after: sketches, prototypes, and other documentation

Thursday, April 12, 2007

Dust Prototype Circuit Pictures

Taking a look back at the breadboarded circuit always turns up something I’ve neglected on the schematic: in this case, it’s the vibrating motor.

Prototype Circuit 004

I’m also a little concerned; I haven’t heard the amplified sound from the MP3 player through a circuit we had on another breadboard.

Prototype Circuit 001

posted by Michael at 1:14 pm  

Thursday, April 12, 2007

Dust Schematic and PCB Progress (2)

Work continues on the schematic for Dust. I have spent hours in Eagle drawing this thing.
20070412 Dust Schematic

Design Questions:

  • Current design will require two USB ports (Arduino + MP3 player). Will it be necessary to include both of them on the PCB?
  • How much current does the circuitry require?
  • What type of battery will we use to power the circuitry?

I also started creating a PCB design. I want to print it out this afternoon to see the physical size and see if this corresponds with the size we want to make the wearable item.

20070412 Dust PCB

posted by Michael at 1:05 am  

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