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Arduino Pro Mini ATmega328P 3.3V 8MHz

₹190.00 (Inclusive of all taxes)
Out of Stock

The Pro Mini ATmega328P 3.3V 8MHz is a compact microcontroller board, ideal for embedded projects requiring a minimal footprint and low power consumption. It offers Arduino compatibility for easy programming and integration into various applications.

Features

  • Compact ATmega328P microcontroller board running at 3.3V and 8MHz.
  • Features 14 digital I/O pins (6 PWM) and 8 analog inputs.
  • Designed for semi-permanent installations and projects with space constraints.
  • Supports serial download for convenient program uploading.
  • Offers Arduino platform compatibility for extensive development resources.

Out of stock

Description

The Pro Mini ATmega328P 3.3V 8MHz is a versatile and compact microcontroller board built around the ATmega328 processor. Engineered for space-constrained and low-power applications, this version operates efficiently at 3.3V with an 8MHz clock speed, making it an excellent choice for battery-powered or wearable electronics projects where energy efficiency is critical.

This board provides robust I/O capabilities, featuring 14 digital input/output pins, six of which can be configured as PWM outputs (D3, D5, D6, D9, D10, D11), alongside eight analog input ports (A0-A7) for seamless sensor integration. It includes an on-board resonator and a reset button for convenient operation. Designed for developers and makers, the Pro Mini requires an external FTDI-compatible adapter for USB communication and power, promoting a minimalist design for its intended embedded applications.

Its design philosophy caters to users who understand system voltage limitations and prefer direct soldering or custom connector solutions, providing a stable and reliable core for a wide range of embedded systems. The compact form factor and clear pin layout ensure straightforward integration into custom PCBs or breadboard-based prototypes, making it a staple for advanced DIY electronics.

Key Features

  • Utilizes the Atmel ATmega328P-AU microcontroller for reliable performance.
  • Equipped with 14 digital input/output pins, including 6 PWM outputs (D3, D5, D6, D9, D10, D11).
  • Features 8 analog input ports (A0 to A7) for diverse sensor integration.
  • Includes a pair of TTL level serial port transceivers (RX/TX) for communication.
  • Supports serial download, enabling easy program uploads via an external adapter.
  • Integrated on-board resonator and reset button for convenient operation.
  • Compact PCB dimensions (33 x 18 mm) suitable for embedded projects.
  • Compatible with 9V battery input (via RAW pin) for portable applications.

Applications

  • Compact IoT sensor nodes and data loggers.
  • Wearable electronics and miniature embedded devices.
  • Robotics control requiring low-voltage operation.
  • Custom home automation and smart gadget prototypes.
  • Educational projects and rapid prototyping platforms.

Technical Specifications

MicrocontrollerATmega328P
Operating Voltage3.3V DC
Input Voltage (Recommended)7V to 12V
Input Voltage (Limit)3.3V to 12V
Clock Frequency8 MHz
Flash Memory32 KB (ATmega328P)
SRAM2 KB (ATmega328P)
EEPROM1 KB (ATmega328P)
Digital I/O Pins14 (6 PWM)
Analog Input Pins8
PCB Dimensions33 x 18 mm
On-board LEDYes
Operating Temperature-40°C to 90°C

Frequently Asked Questions

What power supply options are compatible with the Pro Mini 3.3V 8MHz?

This Pro Mini version operates at 3.3V and can be powered via its VCC pin (3.3V) or the RAW pin with an input voltage between 7V to 12V. An on-board voltage regulator ensures stable 3.3V for the ATmega328P, making it suitable for battery-powered applications and portable projects.

How do I program the Pro Mini ATmega328P 3.3V 8MHz?

The Pro Mini is programmed via a serial connection. You will need an external FTDI Basic Breakout board or a USB-to-TTL serial adapter (e.g., CP2102, CH340G). Connect RX, TX, VCC, GND, and DTR to the corresponding pins on the Pro Mini, then upload code using the Arduino IDE.

What are the key differences between the 3.3V and 5V versions of the Pro Mini?

The 3.3V version runs at 8MHz, suitable for low-power applications and direct interfacing with 3.3V sensors without level shifters. The 5V version typically runs at 16MHz, offering higher clock speed for more demanding tasks. Ensure your peripherals match the board's operating voltage.

Can the Pro Mini 3.3V 8MHz be used with Raspberry Pi?

Yes, the Pro Mini 3.3V 8MHz can interface with a Raspberry Pi. Since both platforms typically operate at 3.3V logic levels, direct serial communication (UART) is possible without voltage level converters. This makes it suitable for offloading real-time tasks or adding specific sensor interfaces to a Raspberry Pi project.

Package Includes

  • 1 x Pro Mini ATMEGA328P 3.3V/8MHz Board
  • 3 x Male Header Connector

Additional Information

Weight 0.02 kg
Dimensions 3.4 × 1.8 × 2 cm