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LoFive RISC-V (Round 2)

LoFive RISC-V (Round 2)


183% Funded
183% Funded
20 Backers
30 Unit Target
Ended 1 Over Year Ago

+ shipping

55 reserved of 30 Minimum
Limited quantity of 55 Available!

Product Details

QWERTY Embedded Design, LLC
Product Description

LoFive is a lightweight SiFive Freedom E310 open source SoC evaluation kit. The E310 leverages the Free and Open RISC-V Instruction Set Architecture originally developed by UC Berkeley and now has wide industry support via the RISC-V Foundation. Don't let the board's understated name and openness fool you - this MCU packs some impressive specs and the board was designed by the prolific QWERTY Embedded Design founder, Michael Welling.

Follow @QwertyEmbedded and @groupgetscom to get the latest updates on toolchain, accessory, and app development for this board.


LowFive Schematics
(click to open a larger image)


  • MCU – SiFive Freedom E310 (FE310) 32-bit RV32IMAC processor @ up to 320+ MHz (1.61 DMIPS/MHz)
  • Storage - 128-Mbit SPI flash (ISSI IS25LP128)
  • Expansion - 2x 14-pin headers with JTAG, GPIO, PWM, SPI, UART, 5V, 3.3V and GND
  • Misc - 1x reset button, 16 MHz crystal
  • Power Supply - 5V via pin 1 on header; Operating Voltage: 3.3 V and 1.8 V
  • Dimensions - 38 x 18 mm (estimated)
  • License - CERN Open Hardware Licence v1.2



Blog Coverage

Back Render

Why GroupGet?

Get the best price on the next batch of the RISC-V based microcontroller board.

Purchase Information

Unit Deliverable
One LoFive RISC-V board
Unit Price
Campaign Part #
Campaign funded, scheduled end date: Thu, 22 Feb 2018 20:52:00 -0800
Factory Lead Time

5 Days Days

Shipping Details
GroupGets will handle the shipment of orders for this product.

Options and Add-Ons

FTDI Breakout - FTDI FT2232H-56Q MINI MDL


FTDI Breakout used for programming the LoFive.

Image of TDI FT2232H-56Q MINI MDL

Premium Female/Male 'Extension' Jumper Wires - 20 x 3" (7.62cm)


20x3" (7.62cm) Female to Male Jumper Wires.

Female to Male Jumper Wire Image

Premium Male/Male Jumper Wires - 20 x 3" (7.62cm)


20x3" (7.62cm) Male to Male Jumper Wires.

Male to Male Jumper Wire Image

Premium Female/Female Jumper Wires - 20 x 3" (7.62cm)


20x3" (7.62cm) Female to Female Jumper Wires.

Female to Female Jumper Wire Image

Full sized breadboard


This is a 'full-size' breadboard, 830 tie points. Good for small and medium projects. It's 2.2" x 7" (5.5 cm x 17 cm) with a standard double-strip in the middle and two power rails on both sides. The back is made of foam double-sided tape, if you remove the protective paper you can attach it to a flat clean surface.

Breadboard Image

Diffused RGB 5mm LED (25 pack)


Diffused 5mm tri-color LEDs with separate red, green and blue LED chips inside!

  • Pack of 25 diffused RGB LEDs
  • 5mm diameter
  • Red: 630 nm wavelength, Green: 525 nm, Blue: 460 nm
  • Red: 1.9-2.3V Forward Voltage, at 20mA current, Green: 3.0-3.4V, Blue: 3.0-3.4V
  • Red: 3000 mcd typical brightness, Green: 5000 mcd, Blue: 900 mcd

LED Image

Through-Hole Resistors - 220 ohm 5% 1/4W - Pack of 25


Resistor Image

How it works

This is a group buy campaign that needs to acquire at least the stated minimum amount of pledges from backers like you before the Unit Deliverable and any Add-Ons ship. We do not charge anyone until the Progress above hits 100% or greater, otherwise there is no charge. All campaign products are vetted as existing and functional so your order will be fulfilled within the Factory Lead Time if the campaign succeeds. Please see our FAQ page for more details on our billing process.

  • 9zi7mnmg normal

    I have just created the GroupGet for LoFive RISC-V (Round 2)!

    Post last edited: over 1 year ago

  • Avatar

    Can we have some cheaper international shipping? I'm in Australia, shipping amounts to $45 which is a bit much for a $25 board.

    I would really appreciate a cheaper shipping method. Cheers!

    Post last edited: over 1 year ago

  • 9zi7mnmg normal

    We are actively working on it and totally get your concern. For all EU orders under 10 units, we are doing freight forwarding to the campaign initiators in the UK who when ship out for cheaper. Aus is a bit harder but we are working on it.

  • Avatar

    When do you think you'll have a definitive answer to this?

    I would love to show some support and get some boards shipped over here, but I'm only ordering for myself and doubling my costs just because shipping is a no go for me.

  • 9zi7mnmg normal

    @sbstnp, our web development has slowed down for the year but it will get picked up again in Jan.

    @Sergey, the shipping calculator will tell you the cost when you plug in your address during the order.

  • Avatar

    Does anyone have any benchmarks on SPI performance on this chip?

  • 9zi7mnmg normal

    All, the overseas shipping costs for this round are what they are as calculated with our shipping calculator. We're sorry but we refuse to ship items without tracking and insurance. We normally do big-ticket stuff here on the platform that requires higher levels of service. Lesson learned with this board.

    We are giving Michael Welling some to sell in-person at some upcoming conferences that he'll be attending. Check his twitter for details: @QwertyEmbedded

    Post last edited: over 1 year ago

  • 9zi7mnmg normal

    We are happy to announce that we now have a cheaper shipping solution in place for international orders (for small items like LoFive). The new rate is plugged in now!

  • Avatar

    Care to share some details? For me shipping to Australia went up to $51, so even with very bad math I can tell that's actually more expensive, not less.