duino-coin VS DxCore

I have been checking out this project called duino-coin. Basically you can use Raspberry Pi's to mine their coin. I'm not too familiar with crypto so a few things are weird to me. The coin is centralised and as I've understood, the point of mining is to hash transactions (which is the whole point of decentralisation). How is it possible to mine and be centralised?

https://github.com/revoxhere/duino-coin It's not profitable at all tho.

https://github.com/revoxhere/duino-coin it says here that the uno makes 15-20 duco per day which is 0.0018 USD. But I actually only make 4 duco per day which is 0.0005 USD. I could be doing something wrong though. My Pi 4 (4gb, 32 bit) only makes 1.4 duco, and that is on the easy difficulty. On the medium setting I only make 0.6. Idk about the power costs though.

I suggest reading the main website (duinocoin.com) or the whitepaper

Hello, as stated on the releases page on github:

Did you browse the examples here: https://github.com/SpenceKonde/DxCore/tree/master/megaavr/libraries/Wire/examples ?

This looks similar to what is available on the newer Dx family. The Arduino core documents this, so it may be worth reading through the source to see how it is achieved: https://github.com/SpenceKonde/DxCore/blob/master/megaavr/extras/Ref_Analog.md

As I mentioned upthread, there is a very good Arduino core for the Dx chips. Even if you don't use it, the documentation alone is worth reading through: (https://github.com/SpenceKonde/DxCore). The same author also maintains cores for various ATTiny families.

DxCore tells the Arduino IDE how to use the DA/DB series... https://github.com/SpenceKonde/DxCore

I'm a great fan of the newer AVR-DA and -DB chips as they offer much more value for money. They run at 24MHz without a crystal, have 16K SRAM and 128KB flash, more peripherals (e.g. two UARTs) and can be programmed with just a USB/serial adapter (no hardware programmer required). Available in the same 28-pin DIP package for about the same price. There's an excellent Arduino core available with full instructions: https://github.com/SpenceKonde/DxCore

The newer chips are really easy to use. All the chip really needs is the usual soft reset circuit (10K resistor + 100nF cap) and a 100nF cap on each power pin. Read through the readme's here: https://github.com/SpenceKonde/DxCore

Try the new AVR-Dx family. Still familiar AVR but will run at 24MHz down to 1.8V without a crystal. You can pick up e.g. AVR128DA28 in 28 pin DIL with 16K RAM and 128K flash for a couple of pounds/dollars/euros. Put it on some strip board with a couple of capacitors and resistors. The supporting Arduino core is https://github.com/SpenceKonde/DxCore