Arduino nano

Key Features:

• Microcontroller: ATmega328P (same as Arduino Uno)

• Digital I/O Pins: 14 (6 can be used as PWM outputs)

• Analog Input Pins: 8

• Flash Memory: 32 KB (of which 2 KB is used by the bootloader)

• SRAM: 2 KB

• EEPROM: 1 KB

• Clock Speed: 16 MHz

• Operating Voltage: 5V

• Input Voltage (recommended): 7-12V

• Input Voltage (limits): 6-20V

• USB Connection: Mini-USB or Micro-USB (depending on the version)

• Communication: UART, SPI, I2C

• Programming: Same as the Arduino Uno, via the Arduino IDE using C/C++-based code.

Physical Size and Form Factor:

• The Arduino Nano is smaller than the Uno, measuring 45mm x 18mm.

• It doesn't have a DC power jack (but can be powered via USB or the VIN pin).

• The Nano has a mini-USB or micro-USB connection (depending on the version), whereas the Uno uses a standard USB-B cable.

Differences Between Arduino Nano and Uno:

1. Size: The Nano is much smaller, making it ideal for projects where space is tight.

2. Power Supply: The Nano doesn't have a separate DC power jack, but you can still power it via the USB port or through the VIN pin.

3. I/O Pins: While both the Nano and Uno have 14 digital I/O pins, the Nano has 8 analog input pins, compared to the 6 on the Uno.

4. Form Factor: The Nano uses headers that are typically soldered directly into a breadboard or custom PCB, making it easier to integrate into smaller projects.

Key Components:

1. USB Port: Used for powering and programming the board (Mini-USB or Micro-USB).

2. Reset Button: Resets the board, often used when uploading new code.

3. Power LED: Indicates the power supply.

4. Status LEDs: There are built-in LEDs for pin 13 (used for simple output tests), and for RX and TX communication status.

5. Pins: The Arduino Nano has 14 digital I/O pins, 8 analog input pins, and several power and ground pins.

Programming:

Just like the Arduino Uno, the Arduino Nano is programmed using the Arduino IDE. It uses the same syntax (based on C++) with the basic structure of a sketch:

• setup(): Runs once when powered on or reset.

• loop(): Runs continuously after setup.

Common Uses:

• Compact Projects: Ideal for projects where size and space are important, such as wearable electronics, portable devices, or small embedded systems.

• Prototyping: Great for smaller breadboard-based projects and circuits.

• Embedded Systems: Since it’s small, the Nano is often used in devices where the Arduino is embedded inside a final product.

Similarities to Arduino Uno:

• Microcontroller: Both the Nano and Uno use the ATmega328P microcontroller.

• Programming: Both use the same Arduino IDE and are programmed in a similar way, making it easy to switch between the two.

• Voltage and Power Options: Both can be powered via USB or through the VIN pin, and both operate at 5V.

• Pins: Both have 14 digital I/O pins, and 6 PWM pins. However, the Nano has 8 analog inputs, compared to the Uno’s 6.

Conclusion:

The Arduino Nano is an excellent choice when space is a concern and when you need a smaller, more compact Arduino board that can still perform most of the functions of the larger Arduino Uno. It’s popular in projects like wearables, robotics, and embedded systems.