The circuit is easy and based on a ir led and phototransistor.
View Arduino Uno With Ch340 Schematic Images. Finally, below is a link to schematics of the nano ch340 r3 board in pdf. I hope you enjoy it.
Arduino Uno Ch340g Schematic - Pcb Circuits from lh6.googleusercontent.com
The nano ch340 r3 board is similar to the genunine arduino nano board, described on the original arduino website here. You have all the codes, schematics and stl files below. Recently i had just bought a new arduino nano clone (ch340) from ebay for my mini arduino project.
I hope you enjoy it.
The arduino uno clone is an easy to use, open source controller. Finally, below is a link to schematics of the nano ch340 r3 board in pdf. The nano ch340 r3 board is similar to the genunine arduino nano board, described on the original arduino website here. It has 14 digital eagle files:
