Arduino Nano 328

Description

The “Arduino Nano 328” typically refers to an older version of the Arduino Nano development board, which is based on the ATmega328 microcontroller. The Arduino Nano is a compact and versatile microcontroller board that is part of the Arduino ecosystem. Here are the key features and components typically found on an Arduino Nano 328:

1. **Microcontroller:** The Arduino Nano 328 is based on the Atmel ATmega328 microcontroller, which operates at 16 MHz and has 32 KB of flash memory for program storage and 2 KB of SRAM.

2. **Compact Form Factor:** The Nano is designed to be small and compact, making it suitable for projects with limited space.

3. **Digital and Analog Pins:** It features a total of 22 pins, including 14 digital input/output pins and 8 analog input pins. Some of these pins also support PWM (Pulse-Width Modulation) output.

4. **Voltage Regulator:** The board includes a voltage regulator that allows it to be powered via an external power supply or USB connection. The recommended voltage range is 7-12V.

5. **USB Interface:** It comes with a built-in USB-to-Serial converter, allowing for easy programming and communication with a computer. It can be connected to a computer via a micro USB connector.

6. **Reset Button:** An onboard reset button is provided for manually resetting the board.

7. **LEDs:** There are built-in LEDs for power (PWR), transmit (TX), and receive (RX) status.

8. **Clock Crystal:** The ATmega328 chip is typically paired with an external 16 MHz crystal oscillator for accurate timing.

9. **Headers:** The Nano features female header pins for easy connection to external components, including sensors, displays, and expansion boards.

10. **Programming:** The Nano can be programmed using the Arduino IDE and the Arduino programming language. It is compatible with the majority of Arduino libraries and shields.

11. **I2C and SPI Support:** The board supports I2C and SPI communication protocols, making it compatible with a wide range of sensors and peripherals.

The Arduino Nano 328 is suitable for a variety of projects and is often used when a small and compact form factor is needed. It is particularly popular for prototyping and for applications where space constraints are a consideration. Note that there are newer versions of the Arduino Nano, such as the Arduino Nano Every and Arduino Nano 33, which offer enhanced features and improved compatibility.