SKU: 38570048013

SparkFun RedBoard Turbo - SAMD21 Development Board

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Description

SparkFun RedBoard Turbo - SAMD21 Development BoardAttention Arduino enthusiasts! Are you ready to take your skills to the next level? Introducing the SparkFun RedBoard Turbo a powerful and feature packed alternative to older 8 bit 16MHz microcontrollers. At its core, the RedBoard Turbo uses the ATSAMD21G18 ARM Cortex M0+, a 32 bit microcontroller that can run at speeds of up to 48MHz. With a generous 4MB of external flash memory and a convenient UF2 (USB Flashing Format) bootloader, this development

Attention Arduino enthusiasts! Are you ready to take your skills to the next level? Introducing the SparkFun RedBoard Turbo - a powerful and feature-packed alternative to older 8-bit/16MHz microcontrollers. At its core, the RedBoard Turbo uses the ATSAMD21G18 ARM Cortex M0+, a 32-bit microcontroller that can run at speeds of up to 48MHz. With a generous 4MB of external flash memory and a convenient UF2 (USB Flashing Format) bootloader, this development platform is perfect for those looking for more power than the classic RedBoard.

The SparkFun RedBoard Turbo comes equipped with a variety of features to enhance your Arduino experience, including a USB interface for programming and power, a Qwiic connector, an RTC crystal, an addressable RGB LED, a 3.3V regulator, and much more. It's easy to power the RedBoard Turbo using a USB port on your computer or by connecting it directly to a wall outlet with the 5V tolerant barrel jack. And if you're not near a USB port, don't worry - the RedBoard Turbo also has a LiPo Battery connector for use with a single-cell 3.7-4.2V lithium-polymer battery. Plus, with the MCP73831 charge controller, you can charge your battery at a rate between 15mA and 500mA by adjusting the resistor value between 66kΩ and 2kΩ. By default, the board is set to charge at a rate of around 250mA.

In addition to its impressive specs, the RedBoard Turbo is also compatible with the Arduino 1.0 footprint standard and includes separate SPI and I2C headers. And with the UF2 bootloader, you can easily flash the RedBoard Turbo over the Mass Storage Class (MSC) just like a removable flash drive - no drivers needed! The RedBoard Turbo even shows up on your computer as a USB storage device, making it simple to program with the Arduino IDE or other languages like CircuitPython or MakeCode. Upgrade your Arduino game with the SparkFun RedBoard Turbo.

Note: The barrel jack connection on the RedBoard Turbo has a lower input voltage than most Arduino development boards. Make sure that you are using a power supply below 6V. Please be aware that the RedBoard Turbo is also a 3.3V device and not a 5V one like the original RedBoard.

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Features

  • ATSAMD21G18 32-bit/48MHz ARM Cortex-M0+
  • 4MB Flash Memory
  • 32KB SRAM
  • 32KB of EEPROM (emulated in Flash)
  • 26 GPIO Count
  • 14 ADC Channels at 12-bit Resolution
  • Analog-to-Digital and Digital-to-Analog Converters (ADC & DAC)
  • Vin: 4.2V-6.0V for charger - otherwise 3.5V-6.0V
  • VBATT: 3.7V Lipo
  • VCC: 600mA @3.3V
  • Arduino R3 Layout
  • Integrated USB Controller
  • RGB LED
  • UF2 Bootloader
  • Qwiic Connector

Documents

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SKU: 38570048013

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4.5 ★★★★★
Based on 8 reviews
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Tabitha Boston-Day
Fort Morgan, US
★★★★★ 5
Romantic Suspense-Incredible
Format: Kindle
This book was incredible from beginning to end. The author did a great job balancing the romance, mystery/suspense and emotional moments that made it hard to put this book down. The chemistry and banter between the two main characters was great. Their interactions had me smiling throughout the story. The kidnapper completely surprised me. I wasn’t even close in figuring out who it was either. I would definitely recommend this book to anyone who enjoys a story filled with heart, suspense, and unexpected twists.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 1, 2026
A
Verified Purchase
Alissa Brianne
Port Orchard, US
★★★★★ 4
4⭐️ Romantic Suspense
Format: Kindle
⭐️⭐️⭐️⭐️ - I loved this book! Good plot, good story, & it kept my interest from beginning to end. 🌶️ - A little bit of spice sprinkled in. Dark Romance is usually my genre of choice. However, Romantic Thrillers are quickly becoming one of my favorite genres that I wasn’t even quite sure existed. All of the Missing Pieces fits that genre perfectly. I really enjoyed Ridley’s character! For all the loss & trauma she has gone through, she is still so willing to help others. I loved her spitfire personality. This story had me feeling all kinds of emotions while making me giggle at times. I thought I had the unsub figured out about halfway through, but I was so very wrong! What a twist. Carter & Ridley’s relationship evolved perfectly. Ridley got the closure that she needed with her HEA. ‼️Possible spoiler ahead! ‼️I did find it hard to believe that Emerson was able to solve the case within a few minutes but wasn’t able to remember those same exact details over the course of 10 years? It felt a little too fast to me. Almost as if the author was trying to wrap up the story a little too quickly. On a side note, I wish there was a spin-off about Trey & Emerson!
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Reviewed in the United States on July 1, 2025
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Verified Purchase
Rue Volley
Boise, US
★★★★★ 5
The perfect romantic mystery
Format: Kindle
Honestly, this book’s hold over me was a little worrying. The story opens with a tragic event, introducing Ridley Sawyer, who immediately captured my heart. She’s tenacious, motivated, witty, and complicated. I connected with her character so quickly that she felt like a friend by the second chapter—something that doesn’t happen often. I also fell in love with her cat, Princess Tater, who had me giggling and kicking my feet. This little feline terror was so well-written that I was emotionally invested in her welfare. I would have rioted if anything happened to her or that adorable van she and Ridley lived in, which doubled as a mobile podcast station. The story beautifully portrays the other fur babies as both sources of emotional comfort and brave protectors. I looked forward to each scene that included them. Catherine painted a detailed picture of the small town and everyone living there. It perfectly sets the scene without upstaging the characters or the book’s mystery. Colt was also a fantastic character. His grumpiness blended well with Ridley’s sunny personality, but they both had a darkness that few could see. Their tragic pasts brought them together and made them grow in ways I didn’t anticipate as the story unfolded. I loved how the slow burn and spice were incredibly hot but subtle enough to enhance the story without overpowering it. I couldn’t figure out who did it, so the reveal was a complete shock. I had doubts, but the author kept me guessing until the end. My hats off to her for sending me in every direction trying to solve this mystery without successfully figuring out who it was. I yelled, and my husband came running when it was revealed. 😂 I don’t give spoilers, but if you love small-town romances, captivating characters, and true crime mysteries, you’ll be hooked on this book. It had the perfect ending, resolving all my questions and giving me more than I expected. This is my first Catherine Cowles book, but definitely not my last. Her writing style is engaging and punctuated with gorgeous sentences I eagerly highlighted on my Kindle to share with others. I highly recommend curling up in your favorite chair, grabbing a snack, and getting lost in this incredible story. You won’t regret it.
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Reviewed in the United States on January 28, 2025
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Verified Purchase
Jaycee Chournos
New York, US
★★★★★ 5
Ridley & Colter 😍
Format: Kindle
Romance, Heartache, mystery & banter all wrapped up in one book. I love me a Catherine Cowles book but having Ridley being a true crime podcaster was epic. I absolutely loved the mystery in the book and the heat between the two main characters. I also love a MMC alpha! You cannot go wrong with any of this authors book but this one was a great stand alone with connections to some of her other book characters.
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Reviewed in the United States on April 10, 2026
A
Verified Purchase
Alicia
Port Orchard, US
★★★★★ 4
Solidly Enjoyable Romantic Suspense
Format: Kindle
All the Missing Pieces by Catherine Cowles Catherine Cowles delivers a compelling romantic suspense novel in All the Missing Pieces, the story of Colt and Ridley. Colt is the dedicated sheriff of Shady Cove, a quiet small town shaken by past tragedies, including the attempted kidnapping of his sister, Emerson. Ridley, a true crime podcaster, arrives in town searching for answers about her twin sister Avery’s disappearance on the night before their college graduation. What begins as an enemies-to-lovers dynamic between Colt and Ridley slowly transforms into a poignant story of healing, trust, and love. This book is a perfect blend of heartfelt emotion and gripping suspense. Ridley’s grief and determination to uncover the truth about Avery are deeply tragic, adding layers to her character and her growing connection with Colt. The small-town setting and the suspenseful plot keep the pages turning, and the romance feels both organic and tender. Cowles’ writing is on par with her other works—effortless and engaging. I found myself completely immersed, reading and listening to the book in a single evening. (Mild Spoiler!!!) My only critique is the identity of the killer, which felt too far outside the realm of possibility, slightly diminishing the story’s otherwise strong credibility. Overall, All the Missing Pieces is a thoroughly enjoyable read, balancing emotional depth with suspense and romance. Fans of Catherine Cowles and the romantic suspense genre won’t be disappointed.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 9, 2025

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