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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4.4 ★★★★★
Based on 165 reviews
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L
Likeacowsopinion_itsmoo
Carnegie, US
★★★★★ 4
Dog didn’t like sound it makes
Color: Duck(Yellow)
I ordered the duck. It’s yellow and a good size for small to medium dogs. It is well made but as the information states this is for gentle chewers. I have a yorkie poo who thinks he is a big dog and likes toys bigger than himself and this fit the bill until…he heard the sound it makes. He didn’t like it and now refuses to play with it. 🤷🏻‍♀️ So the 4 stars because he did like it and did play with it. Minus one because of the sound he doesn’t care for. I will need to cut it open if I want him to play with it again. As of right now he doesn’t want to get near it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 6, 2026
D
D.
Draper, US
★★★★★ 5
Not actually for aggressive chewers
Color: Alligator(Green)
*sigh* Yet ANOTHER toy that's marketed for aggressive chewers that doesn't live up to its claims. My 50-lb goldendoodle put a hole in the plush part of this alligator toy in under 3 minutes, and that was just from normal chewing and not the tooth gnashing with her molars that she usually does. So why 5 stars still? Because after that initial hole was created, we've asked her to be gentle with it, and she's done a fairly good job, leading to a toy that is still intact that she absolutely LOVES. No kidding, this is her new favorite "baby," although I do suspect that the next new toy she gets will then become her new favorite. Kids, amirite? Anyway, I suspect that she loves this toy so much (aside from the fact that it's the newest one) because it's kind of like 2 toys in 1. She has a large rope toy that she adores and only gets to play with when closely supervised because otherwise she uses her teeth to effectively cut through all of the individual rope strings in no time flat. This kind of mimics that texture, but she gets to play with this one to her heart's content and so far hasn't done any appreciable damage to it. She also loves the texture of plush toys, and this one is large enough that she can really grab it in her mouth, but not so big that it takes any effort to carry around. The squeaker has somehow managed to remain alive, and I attribute that to her being asked to be more gentle with this toy, since usually, the reason why she's making holes in plushies is to dig that most cherished little plastic squeaker out of her toys' guts. This is actually a pretty expensive dog toy, though the current coupon price brings it to just under $15, which seems more reasonable, but still kind of pricey for something that your dog may chew completely through in 10 minutes. If you don't have an aggressive chewer, this is a pretty great toy. If you do, be prepared to pay for a toy that will become a pile of innards in pretty short order.
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Reviewed in the United States on January 31, 2026
A
Amazon Customer
Port Orchard, US
★★★★★ 5
Well-Made Toy That My Dog Loves, Great Quality and Fun
Color: Alligator(Green), Color: Alligator(Green)
This dog toy has been a great addition to our pup’s collection. It’s well made and feels like solid quality that will stand up to regular play, which is exactly what you want rather than something that falls apart after a few uses. My Havanese absolutely loves it. The size is just right for small to medium-sized dogs, and we’ve had a lot of fun with tug-of-war and gentle fetch sessions. The texture and feel give her something satisfying to bite and carry around. Pros: Well made and durable, feels like it will last through many play sessions. Great size for small to medium dogs like my Havanese. Encourages play and interaction, perfect for tug-of-war and light fetch. Nice value for the quality and price. Easy to grip for both dog and human hands. Cons: Not ideal for extreme chewers; if your dog loves to destroy toys quickly, you might need a super-heavy-duty option. A bit simple in design, no squeaker, but that’s just personal preference. Overall, this is a solid, fun toy that delivers on quality and performance, and my dog genuinely enjoys it. Highly recommend. Still gets 5 stars!
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Reviewed in the United States on January 24, 2026
E
Verified Purchase
ERock
Lake Worth, US
★★★★★ 1
Didn't last 5 minutes
Color: Duck(Yellow)
Didn't last 5 minutes with my 9 month old pomeranian. Do not recommend if you have an aggressive chewer.
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Reviewed in the United States on February 24, 2026
M
Verified Purchase
Melissa Franks
Draper, US
★★★★★ 5
Great hanging toy
Pattern Name: Dog
My dog loves this. We hung it from a tree limb and he plays constantly with it. Lightweight but durable.
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Reviewed in the United States on May 14, 2026

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