SparkFun RedBoard Plus ATmega328P Development Board USB-C
Arduino-compatible SparkFun RedBoard Plus with ATmega328P, 16MHz clock, 32kB flash, USB-C and Qwiic connectivity for makers and prototyping.
The SparkFun RedBoard Plus ATmega328P Development Board USB-C is an Arduino-compatible board powered by a 16 MHz ATmega328P microcontroller, with added functionality built on the familiar Uno design.
Overview
The SparkFun RedBoard Plus is an updated, Arduino-compatible development board that builds on the familiar Uno design with added functionality. Ideal for makers, educators, and hobbyists, it offers a wide range of I/O options and modern connectivity in a compact, solder-friendly format. At its core, the board runs the ATmega328P microcontroller with the Optiboot (Uno) bootloader at a 16 MHz clock speed, with 32 kB of flash memory.
Key Features
- 22 digital I/O pins, 6 PWM outputs, and 8 analogue inputs
- SDA, SCL, and IOREF pins broken out, with UART, I2C, and SPI interfaces for sensors and peripherals
- Integrated Qwiic functionality for quick, solderless connections to the Qwiic ecosystem of sensors and displays
- USB-C connectivity for both power and data transfer
- Barrel connector accepting 7-15V DC
- Built-in voltage regulators and a 3.3V/5V logic level switch
- Resettable PTC fuse rated at 5V/2A for overcurrent protection
- CH340G serial-to-USB converter for reliable programming and communication
- Labelled PTH holes alongside standard female headers
- Fully compatible with R3 shields
Applications
The RedBoard Plus is suited to prototyping and easy soldering, and its R3 shield compatibility opens up a range of expansion options. It is a practical choice for makers, educators, and hobbyists working on a variety of projects.
Specifications
- Microcontroller: ATmega328P with Optiboot (Uno) bootloader
- Clock speed: 16 MHz
- Flash memory: 32 kB
- Digital I/O pins: 22
- PWM outputs: 6
- Analogue inputs: 8
- Interface: UART, I2C, SPI
- Connectivity: USB-C for power and data; barrel jack for 7-15V DC
- Logic level switch: 3.3V to 5V
- Fuse: Resettable PTC fuse rated 5V/2A
- Weight: 10 gm
Choose the SparkFun RedBoard Plus when you need an Arduino-compatible board with USB-C connectivity, Qwiic support, and a compact, solder-friendly layout for your next project.
- Microcontroller: ATmega328P with Optiboot (Uno) bootloader
- Clock Speed: 16 MHz
- Flash Memory: 32 kB
- Digital I/O Pins: 22
- PWM Outputs: 6
- Analogue Inputs: 8
- Interface: UART, I2C, SPI
- Connectivity: USB-C for power and data; barrel jack for 7-15V DC
- Logic Level Switch: 3.3V to 5V
- Fuse: Resettable PTC fuse rated 5V/2A
- Special Feature: Integrated Qwiic functionality
- Weight: 10 gm
- Width: 3.3
- Depth: 1.5
- Height: 4.3
Documents
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