Electronics Design

Assignment

Individual Project:

  • Redraw the echo hello-world board, add (at least) a button and LED (with current-limiting resistor) check the design rules, make it, and test it
  • Extra credit: simulate its operation
  • Extra credit: render it
  • Electronics Design

    The steps it took to save my traces into a png image. In the top toolbar I only selected the top layer tops and vias.

    Then export image. Make sure your image is a png.

    When you get to this box name your image, click on monochrome and pick 500 dpi. Click Ok and your png image is ready to cut. At this point a ran into a problem because I imported my image from a mac and MODS sees the file two or three times bigger so it did not work.

    Cutting my hello World Board.

    I transfer my Eagle file to the computer(windows) that we ran the machine to mill. Eagle is downloaded in this computer so I open my file and I Exported my png image again. Now my image came out to the right size. Now I cut my image in GIMP. In GIMP I prepared the png image for my traces (interior) and my exterior. Then I raster my traces and cut my outside border in MODS. After cutting my board I washed my board so is ready to solder.

    List of components in my Hello Echo Board

  • 6-pin programming header
  • microcontroller: attiny44A
  • FTDI header
  • 20MHz resonator
  • Resistor (10k)
  • Button
  • LED
  • Resistor;value 499 ohms
  • Soldering parts on to my Hello Echo Board