BDD UNO REV3 CH340 ATmega328P Arduino Compatible Development Board

The BDD UNO REV3 CH340 is an Arduino-compatible development board based on the ATmega328P microcontroller, providing a versatile platform for electronics projects, prototyping, automation, robotics and educational applications.

Designed around the familiar UNO REV3 format, the board provides 14 digital I/O pins, including 6 PWM-capable outputs, as well as 6 analogue input pins. With a 16MHz clock speed, 32KB of flash memory, 2KB SRAM and 1KB EEPROM, it provides the processing and memory resources required for a wide range of microcontroller projects.

The board uses the CH340 USB interface for computer connectivity, allowing programs to be uploaded through the USB connection when the appropriate CH340 driver is installed.

Key Features

• Arduino UNO REV3 compatible design
• ATmega328P microcontroller
• CH340 USB interface
• 16MHz clock speed
• 14 digital I/O pins
• 6 PWM-capable digital outputs
• 6 analogue input pins
• 32KB flash memory
• 2KB SRAM
• 1KB EEPROM
• 5V operating logic
• Recommended input voltage of 7-12V
• Suitable for prototyping, robotics and automation
• Compatible with a wide range of Arduino UNO projects and accessories

Technical Specifications

• Product Code: BDD UNO REV3 CH340
• Board Type: UNO REV3 Compatible Development Board
• Microcontroller: ATmega328P
• USB Interface: CH340
• Operating Voltage: 5V
• Recommended Input Voltage: 7-12V
• Input Voltage Limits: 6-20V
• Digital I/O Pins: 14
• PWM Outputs: 6
• Analogue Inputs: 6
• DC Current per I/O Pin: 40mA
• DC Current for 3.3V Pin: 50mA
• Flash Memory: 32KB
• Flash Used by Bootloader: 0.5KB
• SRAM: 2KB
• EEPROM: 1KB
• Clock Speed: 16MHz
• Device Type: UNO REV3
• Controller Type: ATMEGA328

CH340 USB Interface

The board uses the CH340 USB-to-serial interface to provide communication between the development board and a computer. This USB connection can be used for programming and serial communication with compatible software.

For Windows systems, the appropriate CH340 USB driver may need to be installed before the board can communicate correctly with the computer. Driver requirements can vary depending on the operating system and computer configuration.

Microcontroller and Memory

The ATmega328P provides the core processing functionality of the board. Its 32KB flash memory provides space for program code, while 2KB SRAM is available for variables and temporary data during operation. The additional 1KB EEPROM can be used to retain data even when power is removed.

With a 16MHz clock speed, the board is suitable for a wide range of beginner and advanced microcontroller applications.

I/O Capability

The UNO-compatible layout provides a useful selection of inputs and outputs for connecting sensors, LEDs, displays, motors, switches, modules and other electronic components.

• 14 digital I/O pins
• 6 PWM-capable outputs
• 6 analogue input pins
• 40mA maximum DC current per I/O pin
• 50mA maximum DC current for the 3.3V pin

Always observe the specified current limits and use suitable driver circuits when controlling higher-current loads.

Applications

The BDD UNO REV3 CH340 is suitable for:

• Electronics prototyping
• Arduino-compatible projects
• Robotics
• Automation systems
• Sensor projects
• LED and lighting projects
• Motor-control projects
• IoT prototypes
• Educational electronics
• Embedded programming
• DIY electronics
• Home automation prototypes
• Development and experimentation

Power Requirements

The board operates with 5V logic and supports a recommended external input voltage of 7-12V. The supplied specifications also list an input voltage limit of 6-20V.

When powering the board, use a suitable regulated or compatible power source and remain within the specified voltage limits.

Product Summary

The BDD UNO REV3 CH340 ATmega328P Development Board is a versatile Arduino-compatible platform for learning, prototyping and developing electronic projects. With its ATmega328P microcontroller, CH340 USB interface, 14 digital I/O pins, 6 analogue inputs, PWM support and 16MHz clock speed, it provides a flexible foundation for a wide variety of maker, educational, robotics and automation projects.

What's in the box
1 x BDD UNO REV3 CH340 ATmega328P Arduino Compatible Development Board