2015-02-03 (tU) Color/Touch + Sound

I'm in Texas for another business trip. A saw installed in Conroe Texas needs some attention so I packed my bags to head south. Way south. The weather in Texas is more tolerable than Minnesota so I'm pleased about that. To keep this project moving I am concentrating on computer work, like schematics and PCB (Printed Circuit Board) layout.

Enough background.

A second set of terminals were added which were parallel to the first motherboard to daughterboard terminals. The second set will be arranged so that the wires between the two terminals are not long. Only one terminal on each board needs to be populated with header pins or header sockets. After adding to the schematic it became apparent the second set of switches, switches 3 and 4, will need to be transmitted on the motherboard to daughterboard terminals. This will be updated on the To Do list.

Parallel terminals

The laying out of the circuit board was started. The dimensions of the board were sized according to the CAD file drawn on 2015-01-24 (Sa).
8.4" x 4.25"
This does not take into account the shape of the board which should have a section removed to make room for the wall mounting bracket in the enclosure. Several mistakes in the schematic became apparent on the board layout. Each side only uses eight lights, each side only uses two switches, the power terminal solder pads were too large. Appropriate corrections were made.

Pared down schematic

First arrangement of parts

  1. Design schematic
    1. Add switches 3 + 4 to motherboard <-> daughterboard terminal
    2. Add mounting holes on schematic side?
    3. Reinsert music aux ports as 2x4 header socket
  2. Create circuit board
    1. Design layout for single layer board
    2. Modify shape of circuitboard
    3. Add mounting holes
    4. Carefully align components
  3. Make a parts list with links
    1. Add linking wires for motherboard<->daughterboard
    2. Sound 2x4 header socket
  4. Order parts list
  5. Print circuit board at home
  6. Install components 
  7. Test + Verify
  8. Print PCB professionally
  9. Make all documentation public
  10. Upload correct board layout to public PCB manufacturer

Journal Page

The rest of the posts for this project have been arranged by date.

A list showing of all the final posts of COMPLETED projects.

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2015-02-02 (M)