---
product_id: 259512722
title: "SparkFun (PID 14525) RedBoard Qwiic ATMega328P Arduino Compatible Board with The Practical Qwiic Connector and CH340C Serial-USB Converter IC"
brand: "sparkfun"
price: "¥7679"
currency: JPY
in_stock: true
reviews_count: 5
category: "Spark Fun"
url: https://www.desertcart.jp/products/259512722-sparkfun-pid-14525-redboard-qwiic-atmega328p-arduino-compatible-board-practical
store_origin: JP
region: Japan
---

# 16 MHz high-speed clock 7-15V flexible power input Qwiic connector for effortless I2C SparkFun (PID 14525) RedBoard Qwiic ATMega328P Arduino Compatible Board with The Practical Qwiic Connector and CH340C Serial-USB Converter IC

**Brand:** sparkfun
**Price:** ¥7679
**Availability:** ✅ In Stock

## Summary

> 🚀 Elevate your prototyping game with the RedBoard Qwiic—where innovation meets effortless connectivity!

## Quick Answers

- **What is this?** SparkFun (PID 14525) RedBoard Qwiic ATMega328P Arduino Compatible Board with The Practical Qwiic Connector and CH340C Serial-USB Converter IC by sparkfun
- **How much does it cost?** ¥7679 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.jp](https://www.desertcart.jp/products/259512722-sparkfun-pid-14525-redboard-qwiic-atmega328p-arduino-compatible-board-practical)

## Best For

- sparkfun enthusiasts

## Why This Product

- Trusted sparkfun brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Robust Power Management:** Enhanced AP2112 regulator delivers up to 600mA at 3.3V, perfect for daisy-chaining multiple Qwiic devices.
- • **Compact & Durable Design:** R3 shield compatible with all-SMD construction and a smaller USB Micro-B connector for stable, upright use.
- • **Future-Proof Connectivity:** Qwiic system’s 4-pin JST connector ensures error-free, solderless I2C sensor and shield integration.
- • **Versatile Voltage Switching:** Easily toggle between 3.3V and 5V logic levels with onboard jumpers—no extra converters needed.
- • **Plug & Play Arduino IDE Ready:** Seamlessly program with USB Micro-B and Arduino UNO compatibility—no driver hassle, just code.

## Overview

The SparkFun RedBoard Qwiic is an Arduino-compatible development board featuring an ATmega328P microcontroller running at 16 MHz, equipped with a USB Micro-B port and CH340C serial-USB converter for easy programming. It supports 20 digital I/O pins (6 PWM), 6 analog inputs, and flexible power input from 7 to 15V. The standout Qwiic connector enables solderless I2C integration with sensors and shields, while onboard jumpers allow switching between 3.3V and 5V logic levels. Designed for durability and future compatibility, it’s perfect for millennial makers seeking streamlined, scalable prototyping.

## Description

At SparkFun we continually like to innovate, update, and improve even when it comes to our very own development boards. We have multiple versions of the SparkFun RedBoard in our catalog but none of them in an R3 form factor with a Qwiic connector on it to make I2C easy... until now! The SparkFun RedBoard Qwiic is an compatible with Arduino development board that uses a few of the features that we have loved about boards of the past while also incorporating a few key improvements over the original RedBoard. The best part about the RedBoard Qwiic is that (as the name implies) it utilizes our handy Qwiic Connect System which means no soldering or shields are required to connect it to the rest of your system!Of course, we didn't just add a Qwiic Connector to the board, lets go over all the new additions that make the SparkFun RedBoard Qwiic unique! With the improved AP2112 voltage regulator, this Reboard gains a more robust 3.3V regulator that provides it more power to daisy chain multiple Qwiic boards and sensors, sourcing up to 600mA of current. To help support the micro USB connector (updated from a Mini USB), the CH340C Serial-USB converter IC allows the RedBoard Qwiic should reduce the need for you to manually install drivers allowing for newer operating systems to automatically recognize and install the drivers for the board. Lastly, we have made sure to add a few solder jumpers to the board. The jumpers for the A4 and A5 pins are tied directly to the I2C bus and can be used to disconnect the logic level converters from the pins while the voltage level jumpers can switch the RedBoard Qwiic from a 3.3V device to a 5V device (no logic level converter needed).AP2112 Voltage RegulatorA4/A5 Jumpers3.3V to 5V Voltage Level JumperInput voltage - 7-15V20 Digital I/O Pins (6 PWM Outputs and 6 Analog Inputs)ISP Header32k Flash Memory16MHz Clock SpeedAll SMD ConstructionR3 Shield Compatible

Review: Runing my projects well
Review: One of the problems with Arduino's usb connector is that its stiff and rigid. Being plastic coated, it often flips the board over. Sparkfun Redboard uses the usb micro b male connector that is smaller and keeps the board upright. To use the board get the https json link from Sparkfun website and put it in other boards to update the downloads. When updated, Sparkfun AVR Redboard will show up under boards menu selection. Wayne

## Features

- ATmega328 microcontroller with Optiboot (UNO) Bootloader
- The SparkFun RedBoard Qwiic can be programmed over a USB Micro-B cable using the Arduino IDE: Just plug in the board, select "Arduino UNO" from the board menu and you're ready to upload code
- RedBoard Qwiic has all of the hardware peripherals you know and love: 14 Digital I/O pins with 6 PWM pins, 6 Analog Inputs, UART, SPI and external interrupts
- We've also broken out the SDA, SCL and IOREF pins that showed up on the UNO R3, so the RedBoard Qwiic will be compatible with future shields (if you choose to use them). You can power the SparkFun RedBoard Qwiic over USB or through the barrel jack. The on-board power regulator can handle anything from 7 to 15VDC. Check out the related items below for a compatible wall-wart power supply.
- The SparkFun Qwiic Connect System is an ecosystem of I2C sensors, actuators, shields and cables that make prototyping faster and less prone to error. All Qwiic-enabled boards use a common 1mm pitch, 4-pin JST connector. This reduces the amount of required PCB space, and polarized connections mean you can't hook it up wrong.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B07MTQ8GJC |
| Are Batteries Included | No |
| Best Sellers Rank | #109,334 in Computers ( See Top 100 in Computers ) #1,656 in Single-Board Computers |
| Brand | SparkFun |
| Color | Red |
| Customer Reviews | 4.4 4.4 out of 5 stars (35) |
| Date First Available | 14 February 2019 |
| Item Weight | 18 g |
| Item model number | DEV-15123 |
| Manufacturer | SparkFun |
| Memory Technology | SRAM |
| Operating System | Windows, macOS, Linux |
| Processor Brand | Atmel |
| Processor Count | 1 |
| Processor Speed | 16 MHz |
| Product Dimensions | 7.2 x 5.5 x 1.3 cm; 18 g |
| Series | RedBoard QWIIC |
| Wireless Type | 802.11b |

## Product Details

- **Brand:** SparkFun
- **CPU speed:** 16 MHz
- **Connectivity technology:** I2C, USB
- **Memory storage capacity:** 32 KB
- **Model name:** RedBoard QWIIC

## Images

![SparkFun (PID 14525) RedBoard Qwiic ATMega328P Arduino Compatible Board with The Practical Qwiic Connector and CH340C Serial-USB Converter IC - Image 1](https://m.media-amazon.com/images/I/615CvrXJRWL.jpg)
![SparkFun (PID 14525) RedBoard Qwiic ATMega328P Arduino Compatible Board with The Practical Qwiic Connector and CH340C Serial-USB Converter IC - Image 2](https://m.media-amazon.com/images/I/61BRHXAz1VL.jpg)
![SparkFun (PID 14525) RedBoard Qwiic ATMega328P Arduino Compatible Board with The Practical Qwiic Connector and CH340C Serial-USB Converter IC - Image 3](https://m.media-amazon.com/images/I/61CV8FFbklL.jpg)
![SparkFun (PID 14525) RedBoard Qwiic ATMega328P Arduino Compatible Board with The Practical Qwiic Connector and CH340C Serial-USB Converter IC - Image 4](https://m.media-amazon.com/images/I/61TVcg5ejHL.jpg)
![SparkFun (PID 14525) RedBoard Qwiic ATMega328P Arduino Compatible Board with The Practical Qwiic Connector and CH340C Serial-USB Converter IC - Image 5](https://m.media-amazon.com/images/I/71-PF747t-L.jpg)

## Customer Reviews

### ⭐⭐⭐⭐ Review
*by A***D on 25 September 2022*

Runing my projects well

### ⭐⭐⭐⭐⭐ Review
*by W***S on 24 February 2025*

One of the problems with Arduino's usb connector is that its stiff and rigid. Being plastic coated, it often flips the board over. Sparkfun Redboard uses the usb micro b male connector that is smaller and keeps the board upright. To use the board get the https json link from Sparkfun website and put it in other boards to update the downloads. When updated, Sparkfun AVR Redboard will show up under boards menu selection. Wayne

### ⭐⭐⭐⭐ Review
*by R***T on 5 December 2020*

La verdad estoy muy satisfecho con este producto, el precio es un tanto alto (cuestión de la paridad de nuestra moneda), pero la calidad y mejoras de este producto creo que vale la pena pagar.

## Frequently Bought Together

- SparkFun RedBoard Qwiic ATMega328P Compatible with Arduino Board w/Qwiic Connector and CH340C Serial-USB Converter IC Breadboardable R3 Footprint microcontroller Improved Reset Button
- SparkFun Qwiic Cable Kit Hook Up I2C Qwiic Development Boards in no time No Soldering Required Includes 10 Different Lengths Styles Breadboardable Polarized 4-pin JST Connector Daisy Chain-able
- I2C Qwiic Cable Kit Stemma QT Wire for SparkFun Development Boards Sensor Board Breakout Breadboard 4 Pin Sh1.0 Connector

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**Shop now:** [https://www.desertcart.jp/products/259512722-sparkfun-pid-14525-redboard-qwiic-atmega328p-arduino-compatible-board-practical](https://www.desertcart.jp/products/259512722-sparkfun-pid-14525-redboard-qwiic-atmega328p-arduino-compatible-board-practical)

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*Product available on Desertcart Japan*
*Store origin: JP*
*Last updated: 2026-02-05*