Cloning the Arduino mega 2560 Rev 3

Hi guys!

I'm using the MEGA 2560 for a hardware panel on my PC. For now, I made a custom PCB which works as a shield for the Arduino which all sorts of connectors beside for the switches and buttosn and displays. In order to save some space I'd like to produce my own clown of the MEGA 2560, I already downloaded the brd and sch files from the website and imported them to EasyEDA. So far this works, but there are no footprints for all the components and no item numbers as well. Is there any library where all this information is available?

Thank you in advance, Phil

which one component are you interested on?

so this is my BOM so far:

especially for the 1kOhm Resistor networks I couldn't find any suitable parts. Also, is it possible to replace the ATMEGA2560-15AU with the -16AU?

Two things you should be aware of, the easyeda eagle translator doesn't always translate correctly, Arduino does not guarantee that the schematics and layout are correct.

is there a better planning option than easy eda?

What do you mean by bettor?
I like OrCAD and KiCAD

That's a typo in the schematic, it should be -16AU.

Like I said Arduino does not guarantee that the schematics are correct.

Interesting, when I open the eagle files in altium 360, the Controllers name is also -15AU

see post #4 and #8

When I look at the mini altium 360 viewer on the arduino shop page, everything is correct, but when I hit the little altium sign bottom left and load the brd and sch files from the arduino store, then it is being displayed incorrect.

So I just copied the two schematics manually, now I'd like to reduce some components. For example, I don't need the external power connector and circuit, so is it possible, to get rid of all this circuit and components:

Yes.
Then you can also get rid of T1(MOSFET) IC7B and it's associated components

So basically everything I marked in red?

If you also don't need 3.3V then yes

How will you power the board?

Yes i dont need the +3V pin either, I'd use the 5V power from the USB connector.

Is it possible to get rid of the ICSP headers too? I'm planning to use all of the digital pins of the arduino, except the SCL and SDA pins. I'd also like to skip the pin headers, as I have connectors for all the switches and controls I wanna plug to the board.

The integrated circuit LP 2985-33DBVR has the function of offering a 3.3V output? In my case, it is 5V. Is it an internal regulation of the circuit, or does it depend on some additional circuit to output 3.3V?

El circuito integrado LP 2985-33DBVR tiene la funcion de ofrecer una salida de 3,3V? En mi placa me sale 5V. Es una regulacion interna del circuito, o depende de algun circuito anexo para sacar 3,3V?