LoFive R1

Name

LoFive R1

Brand / Manufacturer

QWERTY Embedded Design

Manufacturer Part #

LoFive-R1

Product Description

The new LoFive R1 features the latest SiFive FE310-G002 RISC-V MCU. This new G002 version of the FE310 adds an I2C port and a second UART over its predecessor, which makes it much easier to add sensor and peripheral interfaces. The PCB has been updated as well. It now has castellated edges in case you want to drop it on another board via SMT instead of through-hole. If the first LoFive was a little too "wild west" for you, LoFive R1 is a much friendlier introduction to the RISC-V ecosystem that seems to be growing in popularity on a daily basis.

Want to know more? Check out our Q&A with the LoFive designer on Hackster.io.

Castellated Edges

Specifications

• MCU – SiFive Freedom E310 (FE310-G002) 32-bit RV32IMAC processor @ up to 320+ MHz (1.61 DMIPS/MHz)
• 16 KB RAM
• Storage - 128-Mbit SPI flash (ISSI IS25LP128)
• Expansion - 2x 14-pin headers with JTAG, GPIO, PWM, SPI, I2C, 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 License v1.2

Production castellated PCBs will be provided by PCBway

Resources

• Github

Why GroupGets?

SiFive released a new version of the FE310 chip and this campaign provides a place to order the revised LoFive R1.

Unit Deliverable

One LoFive R1

Unit Price

$24.99

Campaign Part #

GG-P-533

Availability

Not available / campaign funded, end date: Mon, 20 May 2019 13:00:00 PDT

Factory Lead Time

30 Days

FTDI Breakout - FTDI FT2232H-56Q MINI MDL

$30.00

FTDI Breakout used for programming the LoFive.

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

$3.50

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

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

$3.50

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

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

$3.50

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

Full sized breadboard

$8.50

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.

Diffused RGB 5mm LED (25 pack)

$15.25

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

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

$1.25