Nano V3.0 Chinese version ATMega328P/CH340 Chip with Mini USB Cable [Welded PIN]

$3.59

Weight 0.022 kg
Dimensions 4.5 × 1.8 cm
Microcontroller

Atmel ATmega328

Back Chip

CH340

Operating Voltage (logic level)

5 V

Input Voltage (limits)

6-20 V

Digital I/O Pins

14 (of which 6 provide PWM output)

Analog Input Pins

8

DC Current per I/O Pin

40 mA

Flash Memory

32 KB (ATmega328) of which 2 KB used by bootloader

SRAM

2 KB (ATmega328)

EEPROM

1 KB (ATmega328)

Clock Speed

16 MHz

200 in stock

Description

Arduino Nano CH340 has a lower cost USB-Serial Chip that makes it less in price than Arduino Nano with FTDI USB-Serial Chip used on older versions of Arduino Nano.

The Arduino Nano is a small, complete, and breadboard-friendly board based on the ATmega328 (Arduino Nano 3.x). It has more or less the same functionality of the Arduino Duemilanove, but in a different package. It lacks only a DC power jack, and works with a Mini-B USB cable instead of a standard one.

Arduino Nano can be powered via mini-USB connector, 6-20V unregulated external power supply (pin 30), or 5V regulated external power supply (pin 27). The power source is automatically selected to the highest voltage source.

Comparison with Arduino UNO:

  • Digital IOs: Arduino Nano and Arduino UNO have exactly same number of Digital IOs (i.e. 14)
  • PWM Channels: Arduino Nano and Arduino UNO have exactly same numbers of PWM Channels (i.e. 6)
  • Clock: Arduino Nano and Arduino UNO have exactly same clock frequency (16.000 MHZ)
  • Flash Memory:  Arduino Nano and Arduino UNO have exactly same amount of flash Memory (i.e. 32KB)
  • Data Memory:  Arduino Nano and Arduino UNO have exactly same amount of Data Memory / RAM (i.e. 2KB)
  • EEPROM Memory:  Arduino Nano and Arduino UNO have exactly same amount of EEPROM Memory / RAM (i.e. 1KB)

Features

  • Automatic reset during program download
  • Power OK blue LED on the bottom
  • Green (TX), red (RX) and orange (L) LED
  • +5V to AREF jumper
  • Auto sensing/switching power input
  • Small mini-B USB for programming and serial monitor (cable not included)
  • ICSP header for direct program download
  • Power OK blue LED on the bottom
  • Standard 0.1” spacing DIP (breadboard friendly)
  • Manual reset switch

Technical Specifications

Microcontroller Atmel ATmega328
Operating Voltage (logic level) 5 V
Input Voltage (recommended) 7-12 V
Input Voltage (limits) 6-20 V
Digital I/O Pins 14 (of which 6 provide PWM output)
Analog Input Pins 8
DC Current per I/O Pin 40 mA
Flash Memory 32 KB (ATmega328) of which 2 KB used by bootloader
SRAM 2 KB (ATmega328)
EEPROM 1 KB (ATmega328)
Clock Speed 16 MHz
Dimensions 0.73″ x 1.70″

Arduino Nano is a miniature version of Arduino Uno, which removes the DC power interface and voltage regulator circuit of Arduino Duemilanove/Uno, and uses the Mini-B standard USB socket. As shown in the picture below, the Arduino Nano is very small in size and can be directly plugged into a breadboard for use.

Except for the change in appearance, other interfaces and functions of Arduino Nano remain basically unchanged. The controller also adopts ATmega328 (Nano3.0), with 14 digital I/O ports (6 of which support PWM output), 8 analog inputs, 1 16MHz crystal oscillator, 1 mini-B USB port, 1 ICSP header and 1 reset button.

There is almost no difference in use between Arduino Nano and Arduino Uno, pay attention to choose the right development board model in the IDE. In addition, the two boards use different USB interface chips. The Uno uses ATmega16U2, and the Nano uses FT232RL. Due to the different packaging forms of ATmega328 used by the two boards, Nano has two more pins A6 and A7 than Uno, which can support 8 analog inputs.

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