Description
Arduino Nano CH340 has a lower cost USB-Serial Chip that makes it less in price than the Arduino.
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
Specifications:
- MCU: 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″
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