Justin

Electronics design

This week assignment is to redraw hello-world board and add a button switch beside LED then we have to cut the board as per the the schematic diagram and solder the whole circuit parts.

Drawing hello-world Board

Initially i experimented with Eagle, Circuit maker and finally KiCad. Then i decided to go with Eagle since i findit is more intuitive Then i downloaded the specified component library fab.lib from the FabAcademy website added it to the library of the eagle.next step was to obtain the hello-world board from website
hello-world board

From the details obtained from sample image i began to draw the schematics using eagle software. Initially i placed the components from libarary to schematic area.

after loading

The components in the initial hello-world board are

  • ATtiny44 x 1
  • Resistor 499ohm x 1
  • XTAL 20HZ x 1
  • Resistor 10K x 2
  • Capacitor 10uf x 1
  • Push button x 1
  • ISP header x 1
  • FTDI header x1
  • LED

final view schematic after the redrawing

Schematic_image

After Generating the schematic we can use generate option in eagle to obatin the board design. After Rearranging we will obtain the output as below

After auto-routing the board we will obatin below output

Board Generation

Trace_image

Cut_image
Output after soldering

Design files