Early this year, the world of electronics saw something amazing. The RISC-V, the first Open Source microcontroller was implemented in silicon, and we got an Arduino-derived dev board in the form of the HiFive 1. The HiFive 1 is just a bit shy of mindblowing; it’s a very fast microcontroller that’s right up there with…
LoFive is a small board based on the SiFive Freedom E310 open source SoC
- 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
The design files are available on GitHub:
Here is the LoFive compared compared to the Teensy 3.2:
The KiCad design files are available on GitHub:
mwelling has shared the board on OSH Park:
We are pleased to announce that OSH Park, the purveyors of perfect purple PCBs, have become sponsors of the FOSSi Foundation’s activities. We are very grateful for their support and would like to recognize this by listing them on our Sponsors page at the Bronze tier.
We are actively looking for sponsors for the Foundation, if you’re interested in learning more about our activities and why we are looking for sponsorship, then please visit our sponsorship page and for more, see our detailed sponsorship proposal document.
More information on the FOSSi Foundation:
Inspired by the success of open source software, the Foundation will help bring about IP and tools of comparable quality to proprietary offerings, and which are developed according to an open source model by a highly collaborative and inclusive community. The FOSSi Foundation will address the issues the field currently faces; fragmentation, legal uncertainty, design quality, and high barriers to entry.
FOSSi has launched LibreCores:
gateway to free and open source digital designs and other components that you can use and re-use in your digital designs.
FOSSi also organizes the ORConf:
Arduino compatibility can mean a lot of things to a lot of different people, so we’ll try to be as concrete and specific as possible. For the Open-V, Arduino development tools, and interoperating on a hardware level with existing Arduino shields.
We’ve updated our live, web-streamed demos to include an Arduino mode in addition to the assembler and C modes we already have. You might also notice the relatively new Blockly modes and a refined layout of the demo page. Go write some code and see the results live streamed!
You can now program the Open-V on the web, and see the results in real time. The code is compiled in the web IDE and then flashed to a microcontroller which is connected to a live YouTube live stream. It’s pretty neat to flash firmware on a microcontroller thousands of miles away and see the…
Slides from the his talk:
You can now program real Open-V dev boards from anywhere in the world and see the results on a live video feed! Here’s our first demo – blinking the dev board LEDs.
Go to http://onchip.uis.edu/ to remotely program the demo board: