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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will
Cuba, US
★★★★★ 4
Good purchase
Size: 6 FT, Color: White
I appreciate the flat plug a lot. I'm giving 4 stars because I've if the USB ports does not work.
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Reviewed in the United States on October 23, 2025
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The Keel
Alexandria, US
★★★★★ 5
Great so far
Size: 6 FT, Color: White
The first thing I liked about this is that the on/off switch has a mark on the ON side, unlike my last Belkin power strip, which had a switch where you couldn't tell which side was on or off. That Belkin was remote, which I really wanted, but the Belkin remote never worked reliably even from the start, so I'm happy with a surge protector without a remote but where I don't have to guess whether it's on or off if I can't see the light on the device plugged into it. Very reliable and solid performance so far and I also especially like the generous amount of space between the outlets - enough for the biggest plug without getting crowded. Also it's not heavy & clunky like some. And the 6 foot cord length works great, too - a big difference with the usual 5 foot cord. Also has 2 USB slots which I can use to charge my iPhone and USB chargers. All this at a decent price and it's not clunky or ugly. Have been using it daily all day for 3 months now with zero problems.
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Reviewed in the United States on August 31, 2024
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cg123
Dallas, US
★★★★★ 5
Very Good Purchase
Size: 10 Ft, Color: White
I bought this for my fiancee at the time who had several things to plug in, but did not have the space and would keep rotating plugs. This was able to help her organise the place better and charge multiple things at once. She absolutely loves it. It even has ports for phone chargers, which is very useful. The quality is very good as well. Strong and durable and looks good once you take care of it. Can blend in well and it looks good aesthetically.
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Reviewed in the United States on July 19, 2025
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Vivian Santos
New York, US
★★★★★ 5
Excellent product
Size: 10 Ft, Color: Black
It is a practical and very good quality product.
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Reviewed in the United States on February 19, 2026
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Lauren M
Los Angeles, US
★★★★★ 5
Good for DIY projects
Color: Black, Size: 6 FT
Good quality. All works well and seems durable enough and like that it’s easy to replace in future if damaged.
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Reviewed in the United States on April 12, 2026

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