2015-02-02 (M) Color/Touch + Sound

More planning was done for the daughterboard. A completely separate board was considered but since space would not be saved by a different layout it was decided to continue with a single board capable of performing all the functions. By placing a second set of identical terminals on the schematic it will be possible to differentiate the terminals on the board, accurately label the pins, and use shorter wire lengths between the motherboard and daughterboard.

The capacitors attached to each RGB LED as well as the LED chip itself will have to be rotated 180 degrees on the daughterboard. This rotation will allow for the data to flow in the reverse order compared to the motherboard. The jumper wires were rearranged so that the power terminals, GND and VCC, are on the outside since they must be reversed from the motherboard to the daughterboard.

 Original layout of connector

Revised layout of connector

The current schematic was made public from a Dropbox account. This file will be updated as necessary so it will always be the most current.

To do:
  1. Create circuit board
    1. Add second set of terminals, in parallel to first for daughterboard
    2. Design layout for single layer board
  2. Make a parts list with links
    1. Add linking wires for motherboard<->daughterboard
  3. Order parts list
  4. Print circuit board
  5. Install components 
  6. Test + Verify
  7. Make all documentation public
  8. Upload correct board layout to public PCB manufacturer

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2015-01-31 (Sa)