Development Board SMD Atmega328P CH340 Compatible With UNO

Features:

1. ATmega328P 8-bit Microcontroller

Built around the trusted ATmega328P, providing stable, reliable performance for robotics, automation, DIY electronics, and education.

2. 16 MHz Operating Frequency

Runs at 16 MHz, delivering fast and responsive processing for:

• Motor control

• Sensors & data acquisition

• Automation systems

• Timing-critical microcontroller projects

3. USB Type-A to USB-B Interface:

Equipped with a full-size USB-B port for:

• Strong, durable cable connection

• Stable programming & data transfer

• No loosened ports over time

• Compatible with standard printer-style USB cables

A USB A-to-B cable is included.

4. CH340 USB-to-Serial Converter

Uses the widely supported CH340 interface chip for:

• Reliable USB communication

• Easy driver installation

• Stable uploads to the Arduino IDE

• Compatibility with Windows, macOS, and Linux

5. Program & Data Storage

• 32 KB Flash memory (≈30 KB available for your sketch)

• 2 KB SRAM for variables and buffers

• 1 KB EEPROM for saving data permanently

Perfect for storing settings, calibration values, and small logs.

6. Multiple Power Input Options

• USB 5V power

• Barrel-jack input: 7–12V recommended

• Onboard 5V and 3.3V voltage regulators

Supports external battery packs or AC-to-DC adapters for standalone use.

7. Full-Size I/O Layout (Shield-Compatible)

A total of 20 I/O pins, including:

• 14 digital pins (D0–D13)

• 6 analog inputs (A0–A5)

• 6 PWM outputs (D3,D5,D6,D9,D10,D11)

• I2C (A4 SDA, A5 SCL)

• SPI (ICSP D10–D13)

• UART Serial (D0 RX, D1 TX)

All pins are clearly labeled and easy to access.

8. Standard Uno Footprint

Compatible with popular shields including:

• Motor driver shields

• LCD/keypad shields

• Relay shields

• WiFi/Ethernet shields

• Sensor shields

9. Fully Arduino IDE Compatible

Works with:

• Arduino IDE (Win/Mac/Linux)

• PlatformIO

• All Uno R3 libraries

• All Uno-compatible shields

10. Wide Application Use

Great for:

• Robotics & motor controllers

• Smart home projects

• Schools, STEM classes, and beginners

• Sensor hubs & data logging

• LED and lighting control

• IoT prototypes

• DIY electronics and prototyping

Note: This is an UNO compatible board. It is not an official Arduino-branded product, but is fully compatible with the Arduino IDE, libraries, and UNO R3 shields.

Package Includes:

• 1xUno R3 board (SMD ATmega328P, USB-B port)

• 1xUSB A-to-B cable

• 1xMale header pin strip (unsoldered)

Payment&Returns:

• Payments are managed by .

• Returns are accepted within 30 days after delivery.

• Defective items will be exchanged or fully refunded as requested by the buyer.

• All returned items must be in the original condition with all included accessories. Items returned used, damaged, or missing parts may be subject to a partial refund of up to 50%, per policy.

Shipping:

• We provide same-day shipping with tracking on all orders placed Monday–Friday before 3:00 PM CT. This excludes U.S. federal holidays when postal services are closed. Shipping timelines may also be adjusted if store vacation settings are active.

Please note: USPS may not scan all packages until the following business day, and tracking updates can sometimes be delayed in their system. While we guarantee same-day drop-off, we have no control over USPS scanning times, transit speeds, or tracking update delays.

• Shipping and handling fees are non-refundable under any circumstances.

•Please confirm your shipping address before placing your order. If an order is placed with an incorrect or outdated address, the order must be canceled and re-ordered with the correct address.

Your Satisfaction Is Our Priority:

We want you to be completely satisfied with your purchase and to enjoy a smooth and positive shopping experience. If you have any issues or concerns, please don’t hesitate to contact us — we’re here to help and will do everything we can to make it right.