This assignment it cannot finish the manufacture my microcontroller for my drum because I had a problem in the milling of my board, also this week my country Peru, the government quarantined the whole country until further notice due to the problem COV-19, so the manufacturing would still be pending.
But if I can manufacture and program the Hellow world circuit for do my PCB designs I use online software EasyEDA and FlatCAM, For me this is a simple sofware and are simple to use and learn. I use these electronic components: One microcontroler ATTiny 44, two ISP conections, 01 resistance R1K and one red LED. Below are the steps of my process.

-Hello World board-

STEP 0. In the schedule they give us an image (Picture Base) where they show a design of a HelloWorld PCB so that we can guide ourselves and design a PCB with our own design.
Picture Base.



STEP 1. I design and draw in EasyEDA my own HelloWorld PCB following what my instructor taught me. This was an experience in PCB design that I really enjoyed and it was easy to do.

Picture 72.0. In this image I show my design of my schematic that I made in EasyEDA .


Picture 72.1. In the picture below, I show my design process of my PCB.


Picture 72.2. In the image below I show my final design of my PCB.


Picture 72.2.1.


Here are the Gerber file and SVG file: Gerber-Files
Export the EDA-document in SVG extencion. In the picture below show a preview.
Picture 72.3.



STEP 2. Upload to Fabmodules. Then we use Fabmodules to prepare the schematic for the Milling machine. Here the parameters for the Milling machine, the Roland SRM-20.

Picture 72.4.

Picture 72.5.

Picture 72.6.

Picture 72.7.

Picture 72.8.

Picture 72.9.

Picture 72.10.

Picture 72.11.

Picture 72.12.


Here are the ready files to mill my PCB.

-Trace:
PCB-Trace

-Outline:
PCB-Outline

-Drill:
PCB-Drill


STEP 3. Milling my PCB board

Prepare de milling machine
Picture 73.

Picture 73.1.


Milling the Traces
Picture 73.2.

Picture 73.3.

Picture 73.4.


Milling the Outlines
Picture 73.5.

Picture 73.6.


Retire the PCB
Picture 73.7.


STEP 4. Solder the electronic components for my PCB circuit

Picture 74.

Picture 74.1.


STEP 5. Programming my PCB-circuit

Picture 75.

STEP 1. I design and drawing in EasyEDA
My own board for my Fab-Electronic Drum Kid.
Using EasyEDA I pickup the following electronics:
First we have to understand how are the different components arranged in the Microcontroller ATTiny44


Picture 76.
1. Started picking up all the electronics from the library of EasyEda.

Picture 76.1.
2. Convert the schematic into PCB.

Final view of my PCB.

3. Here are the Gerber file and SVG file: Gerber-Files
Picture 76.2. Export the EDA-document in svg extencion. SVG-Files



-Trace:
SVG-Trace
-Outline:
SVG-Outline


Picture 76.3.
4. I processed it into Fab modules in order to send the information to mill it.



STEP 2. Milled my PCB circuit

Test 1 - Failed This board has an error, the router badly cut this pcb. (Image 77.2) where I point that side with my finger when cutting a trace. At EasyEDA I made another PCB model correcting some errors and see if it works out for me this time.
Picture 77.

Picture 77.1.

Picture 77.2.


Test 2 - Failed This other board has a severe error, I think it occurred the moment I exported the files for the milling machine, something went wrong because when I milled this PCB, the trace and contour were out of square, I show them to you in the (Picture 77.5).
Picture 77.3. This is my second PCB in EasyEDA

In the image below I show my design of my PCB.

Here are the Gerber file and SVG file: Gerber-Files
Picture 77.3.1. Export the EDA-document in svg extencion. SVG-Files


-Trace:
SVG-Trace
-Outline:
SVG-Outline


Picture 77.3.

Picture 77.4.

Picture 77.5.


Test 3 - It works well This other board works fine, I redesigned it and enlarged the traces.
Picture 77.3.

In the image below I show my final design of my PCB.

This are the Gerber of this PCB I share you the link: PCB_DRUM-Test_Gerber.

Picture 77.3.1. Export the EDA-document in svg extencion. SVG-Files


-Trace:
SVG-Trace
-Outline:
SVG-Outline


STEP 3. Prepare the files to Mill

Picture 78. From EasyEDA I export the Gerber files of my PCB, for this PCB I will use FlatCAM in which I will open the Gerber files to prepare the necessary files to be able to send milling.


Here are the ready files to mill my PCB.

-Trace:
PCB-Trace
-Outline:
PCB-Outline


STEP 4. Print my PCB board

Picture 78. I setting in the software


Picture 78. I put the mill 1/64


Picture 78.


Picture 78.

Picture 78.


Video 1.


Picture 78. I change the mill and put the 1/32 for milling the outline.


Video 2.


Soldering.
Picture 78.

Picture 78.

Picture 78.

Picture 78.