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Introduction   So it's 2017 and whether you use bitcoin in your everyday lives, for future investment or don't know enough about it to use it we've all still at least heard of it!   Bitcoin was the first of its kind and remains today as the major player in the crytocurrency market, if you've never really bothered with cryptocurrencies you might be surprised to realize that bitcoin isn't the only cryptocurrency in the market there are others too such as ethereum, ripple, litecoin, mon ...
So I've been working on getting the de0-nano fpga to control an 32x32 LED matrix display and struggled to get any expected output, so I switched to using a beaglebone black to try controlling in a way that I'd done with a previous display only to get the same results. See the picture below. I can light up different rows but only the first 16 LED's seem to light up reliably and only in green, sometimes the red ones blink on for a few seconds but thats all I can get.     Knowing that ...
After a busy couple of months spent moving house, doing renovations and re-arranging work I've finally got my BigTrak project back out. I tested a circuit to allow me to re-use the existing optical encoders, burnt a couple of transistors testing out a H-bridge before settling for an off the shelf motor driver from ebay! (I guess bc237/bc238 transistor combo's just aren't cut out for driving motors but theyre the beefiest I had to hand... )   ...
The 2nd part of this mini series goes through the motions of desoldering the motors right-angle daughter board from the main circuit board, removing the optical encoders and looking closer at the motor control circuit and how it differs from the original bigtrak model.   ...
For the BigTrak conversion project, I plan to retrofit the lunar rover toy with a modern small board computer like a Raspberry Pi or something similar, my plans to start with are to install the new hardware and get it to function like the original device and then add other hardware/software components at a later time.   Today I took apart the bigtrak lunar rover toy for some preliminary investigations, I discovered that the drive trains feedback system uses optical encoders rather than hal ...
lucie tozer

Upcoming Projects

Posted by lucie tozer Top Member Jul 20, 2015
Lucie's Upcoming Project Overview       Below is a quick outline of ongoing projects that are going to be cropping up in my blog and other relevant sections. Each will have their own content index page that will be updated with relevant posts, the first should be coming soon!!   Project 1 - Adventures With Beaglebone Black     Recently, I've been meddling with different ways to control the GPIO and other on board peripherals of the BBB to help with the work fl ...
The past few days, I've been sketching up a few ideas for how the enclosure or console case should look. Yesterday was spent drawing up a finalised design and tweaking it a bit then working out the other electronic components that are going to be needed.   My original intention was to just post up some design pictures, but during a spell of insomnia last night, decided to do a quick video about it all. Its pretty long (about half an hour); I was in my own little world and full on natter mo ...
From the first thoughts on this project, I knew there needs to be an LCD on the gaming console. It's something that I've never seen before on one, but think it would add so much to the overall look of the system.   It's not a simple task by any means to incorporate an LCD screen and means working out how to control the GPIO through ubuntu, but it becomes more difficult thinking about the information actually displayed. What's going to be written on it?   The easiest messages to displ ...
The first part of the Hadron Vortex G2 project is all about the software. Important milestone are installing and configuring an operating system for administration, Installing and configuring gaming emulators, creating custom launchers for the games to run independantly without desktop support.   Risers have been installed onto the four corners of the Gizmo 2 board to act as legs and keep it's base raised above my desk to prevent any short circuits or static generated from the surface it's ...
What is it? It's the project I'm working on in order to review the Gizmo2 single board computer as part of a roadtest here at Element 14. For my project, I chose to make a retro style games console that plays emulated games initially from the amiga and arcade machine platforms. Why "Hadron Vortex G2?" With it being retro styled I also wanted it have a retro type name. The very first video game system was called the Magnavox Odyssey and then came name like Master System and Mega D ...
  visit http://www.element14.com/community/people/violet/blog/2015/04/15/hadron-vortex-g2--content-index for an index of progress reports, technical details and much much more.   Content will be added regularly until the project is complete so don't forget to keep checking back!!   Lucie ...
This is where new content updates and links will appear as progress is made:     1) Picture advert exploiting Courseware mode on Tektronix TBS1202B-EDU http://www.element14.com/community/people/violet/blog/2015/04/14/gizmo-2-roadtest-project--hadronvortexg2 2) Cyberpunk distopian style teaser video http://www.element14.com/community/people/violet/blog/2015/04/15/hadron-vortex-g2-video-transmission 3) Project overview http://www.element14.com/community/people/violet/blog/2015/04/15/hadr ...
  and on the scope:   ...
Restoring the Espruino bootloader using a Beaglebone Black's serial UART   I recently damaged the firmware and the USB bootloader on my Espruino, remembering that the STM32 which is at the core of the Espruino has a hardcoded bootloader that can be used to restore the firmware by uploading it through 3v TTL serial transfer.     Heading over to the Espruino website, I found this guide http://www.espruino.com/Serial+Bootloader which has instructions for programming the Espruino ...