Electronics Production

    Individual Assignment:
    Make an in-circuit programmer by milling the PCB, program it.


    Machine:

  1. • Roland Mill, SRM- 20
  2. • Digital Multimeter


    3. Softwares:

  3. • Fab Modules
  4. • EAGLE
  5. • GIMP

    6. Steps:

  6. • Download the PCB images (Traces & Outline) from Fab Academy Browser- Brian








  7. • Create a new folder on desktop called Aisha
  8. • Save both images (Traces & Outline) on previous folder
  9. • Open a website called Fab Modules : 3 sections will show on the top bar (Input Format, Output Format & Process)
  10. 1. Input format: insert image (traces or outline), I have started with traces first.
  11. 2. Output format: select the machine type you are using at the lab (Roland Mill).
  12. 3. Process: select the tool size for engraving on PCB based on the input format either PCB (1/64) or PCB (1/32).


    13. A- Traces’ settings
    In the settings of output, change the below only:

  13. • Select SRM-20 for machine
  14. • Add value 0 to x, y & z.

    15. In the settings of process, add value -1 to number of offsets if the input format was traces only.



    Click on calculate & save.



    B- Outline’s settings In the settings of output, change the below only:

  15. • Select SRM-20 for machine
  16. • Add value 0 to x, y & z.


    17. Click on calculate & save.







    Milling Traces & Outline
    Used two miling bits (1/64 & 1/32).




    Placed double-sided tape at the back of the board to fix it's place.



    Note: we need to pause from time to time during the milling process to ensure things are going smoothly.



    Cutting



    Soldering
    Based on this guide, I have prepared the compenents.



    Use Digital Multimeter to ensure PCB’s components are operating normally.


    Programming

  17. Follow the process as it shows exactly on the this link.

    18. 1- Install the Atmel GNU Toolchain







    2- Install GNU Make
    3- Install avrdude
    4- Update your PATH

    5- Install Drivers for your Programmer





    5- Sanity Check


    ,


    USPtinySPI is showing on Device Manager.