Arduino Nano Schaltplan Ch340. This is a cheap chip that manufacturers exploit to make the clone a lot cheaper. Home arduino kits robots.
The boards using the ch340 chip don t need a programmer in order to access the processor or to program them. The board uses same type of mini b usb connector same side connectors and 6 pin spi connector as well as the atmel atmega328p microcontroller in the 32 tqfp package. This can also be a downside.
This article discusses about the technical specs most importantly the pinout and functions of each and every pin in the arduino.
If you are like me and ordered a cheap arduino nano clone from a chinese website like aliexpress or banggood chances are that they come with the cheaper ch340 usb to serial chip. The arduino nano as the name suggests is a compact complete and bread board friendly microcontroller board. Homepage schaltplan arduino nano schematic ch340. There is no refence in the original ch340 datasheet or elswhere on the internet so i measured the supplied 3v3 voltage directly.
