Omni-directional wheel


I saw this video on Hackaday and liked it a lot, so I decided to include it here. As other ‘Time Out’ posts, it has nothing to do with FPGAs whatsoever.

The video shows up the operation of the omni-directional wheel, which looks quite cool. I have one comment to make, but it will be after the video, in order to avoid a spoiler.

So, after I saw the video I really remained asking myself if the tyre is not damaged when used for side to side moving. Actually I am not sure that a wheel can be flexible enough to do the trick. But, what do I know about tyres after all?

Linear Power Solutions for FPGAs

Altera Arria 10 Evaluation board – Source: Linear

Modern FPGA devices are quite complex machines. They include support for several type of I/Os at different voltages (LVCMOS, LVDS, SSTL, etc). Also, the FPGA core usually works at low voltages of around 1.0V, but at quite high currents of several amperes. Additionally, power sequencing requirements must be met.

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Introducing the Spartan 3E FPGA and VHDL – free book

spartan3EAuthor Mike Fields wrote this book as an introduction to FPGAs and VHDL. The book examples are mainly oriented to Xilinx Spartan 3E FPGA (but as in other books, the concepts are general. If you don’t have that FPGA, adapting the book examples to your own device can be an excellent way to learn).

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BeMicro CV – HW & SW LED flasher

The second project for the BeMicro CV board will be a HW/SW LED flasher. From the LEDs present in the board, some will be flashed by HW, and others will be flashed by SW running on a NIOS processor.

For an introduction about the Be Micro CV evaluation board, please refer to this post.

What will the project do:

  1. Flash a sequence of HW LEDs by dividing the clock input
  2. Make a ‘lamp test’ (all LEDs lit) when reset is pressed
  3. LEDs sequence is accelerated if the user presses the second push button on the board.
  4. Three LEDs are flashed by SW. To differentiate between the two groups, the LEDs flashed by SW run faster.

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Lattice Crosslink devices bridge the gap for VR solutions


“The pieces are falling into place for the Virtual Reality (VR) market. As designers move to higher bandwidth designs, integrate higher resolution displays, reduce system latency, and improve gesture and head tracking, they are beginning to deliver truly immersive experiences to VR users”

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