I was looking for a schematic of a attiny85 usb implementation and i found one from Yoni013p in this forum. Here is my problem : Im trying to make a sort of micro gameboy with a tetris game in it. I drew the schematic of a 3.7v Ion battery regulator connected to the "tetris game" circuit coming from this (https://github.com/jaromaz/ATtin...). The interface is a really small Oled screen.
Actually my goal was to load the code in the Attiny before and then solder all the components on the etched copper board, which make the project not flexible.
It would be great to be able to load a new program in the game console in the future. Previously i was planning a simple SPDT switch on the battery + trace but it' s not that simple obvioulsy..
As im newly electronic student with a lack of knowledge. Im looking for help to understand if it possible to put the Attinty85 USB implementation inside the circuit i made. For example in my case the XTAL1 and the XTAL2 are used in different way in the 2 circuits... So i don't know if it's fixable.
What do you think ?
Also sorry for my english, i know it's not completly bad but it's not fluent.
CHeers and thanks for your time