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Electronics Design

Topics




Redraw the echo hello-world board




Procedure

To Redraw the echo hello-world board I used Eagle software.

  • 1.Click on add part
  • 2.Open Library Manager
  • 3.Choose in use
  • 4.Click Browse
  • 5.Choose the specified file
  • Note: the library is downloaded to add the proper parts for the board.







    Now we are ready to build our board

    To add the components Click add parts and look for the downloaded library

    After adding the components we need to connect all the components to make the circuit







    Instead of wiring and make the board sketch complicated We use the labeling to connect the termination. We need to look for the data sheet of the Attiny 44 to find the pinout to connect all terminatin in a proper way







    We have to modify the value of each component for example I modified the resistor value of the led to be 499ohm.

    after circuit building is done, we can switch to board layouty.







    Next we need to choose best location for each component on the PCB. and use routing tool for the traces arrangement







    Now we need to export the Electronic design as a PNG file. In GIMP software we need to opent the file and export two images, the traces image and the inverse of it to be the outline image.
















    we can start milling now using the same settings for the electronic production week board






















    let's go to collect the component and solder it










    Ouch !! I did a mistake but it can be resolved. Now we are ready to program the board using my usbtiny




    We need to check the connection of the board components using the multimeter and confirm that there is no short circuit




  • 1. open Arduino IDE>> file>> Preferences>> paste the link https://raw.githubusercontent.com/damellis/attiny/ide-1.6.x-boards-manager/package_damellis_attiny_index.json>> close board manager dialog.






  • 2. go to tools>> board >> board manager and install attiny44
  • 3.close board manager dialog.


  • 3. Go to tools>> Processor>> and select ATtiny44






  • 4. Goto tools>> clock and select 20 MHz






  • 5. Go to tools>> burn bootloader












  • Board
  • Schematic



  • References and sources

  • Outline
  • Traces
  • Components
  • Components