Arduino Nano 328


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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.


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