Ch340 Board – Description:
The CH340 Soldered Nano Board R3 Chip without USB Cable is a compact variant of the popular Arduino platform, delivering all the functionality of the Uno but in a smaller package.
This Nano board is essential for small projects where minimizing size is crucial, while still offering a practical number of pin-outs.
Featuring a cost-effective USB-Serial Chip, it’s more affordable than earlier Nano versions that utilized the FTDI USB-Serial Chip.
The Nano is a compact, breadboard-friendly board based on the ATmega328 (Arduino Nano R3). It retains the core features of the Arduino Uno but in a different format, lacking only a DC power jack and using a Mini-B USB cable instead of a standard one.
Power options for the Nano include a mini-USB connection, a 6-20V unregulated external power supply (pin 30), or a 5V regulated external power supply (pin 27), with the system automatically selecting the highest voltage source.
Measuring just 43 mm x 18 mm, the Nano V3.0 with the CH340 Chip includes 6 PWM I/O from a total of 14 digital I/O, 8 analog inputs, a 16 MHz clock speed, and 32 kB of flash memory.









