The first part of a (very) occasional series which follows my creation of a digital speedo for my motorcycle. Continue reading “Motorcycle Digital Speedo With Arduino”
Linux Music with Guitarix – A Fix for High CPU Usage
A quick tip for those using the excellent Guitarix guitar effects program on Linux. I regularly found both cores of my machine up around the 90%-100% when that application was running, causing XRuns in Jack and clicks in outputted audio. I just found a way around it. For some really weird reason, SSHing into my main box from a separate, really underpowered netbook (an EEE701) with the “-X” flag, then running Guitarix from that machine, results in much lower CPU usage. It’s weird because Guitarix is still running on my main machine, it’s just displayed on the remote machine. Presumably something in the display code for Guitarix is a lot heavier than it should be.
Using the Ethernet Shield with Veroboarduino
In which I investigate whether I can connect an Arduino Ethernet shield to my Veroboarduino. Not as easy as I first thought it would be!
Continue reading “Using the Ethernet Shield with Veroboarduino”
Site Re-Located
This weblog is now running on its own domain – www.martyndavis.com. You should have been redirected here automatically if you clicked a link which went to the other address (www.marengo-ltd.com/blog/). Apache mod_rewrite settings, being somewhat of a black art, means it’s possible I’ve mucked something up :) If you see any problems with any pages you’re trying to access, just comment here.
VeroBoardUino – Last Part – Burning a Bootloader and Uploading Programs
In which we burn an arduino boot loader onto the ATMega, and then upload our own programs.
Continue reading “VeroBoardUino – Last Part – Burning a Bootloader and Uploading Programs”
VeroBoardUino Part Three – Crystal and Final Connections
In which we add the crystal, finish wiring and insert the chip.
Continue reading “VeroBoardUino Part Three – Crystal and Final Connections”
VeroBoardUino – Part 2.5 – Circuit Diagram and Parts List
It was suggested to me that I should publish the actual circuit diagram of this project, together with a parts list. Here it is!
Continue reading “VeroBoardUino – Part 2.5 – Circuit Diagram and Parts List”
VeroBoardUino – Part Two – Serial Connector and Reset Button
This is part two of a short series on how to build your own arduino-compatible board from scratch. You can find part one here: http://www.martyndavis.com/?p=105.
Continue reading “VeroBoardUino – Part Two – Serial Connector and Reset Button”
VeroBoardUino – How to Build an Arduino-Compatible Board for Very Little Money
Note: this was going to be one post but it’s ballooned into a huge thing so this is one of several which will be posted over the next few days. Stay tuned!
So you’ve got a nice Arduino board for experimentation and you’ve built a circuit on a breadboard which you’d like to make permanent.
It’s expensive (and overkill) to use a new arduino each time you build a new circuit you want to keep. Here’s how you can easily build an arduino-compatible board, from complete scratch, for a few pounds/dollars/euros so you can keep your real arduino for experimenting with…
Continue reading “VeroBoardUino – How to Build an Arduino-Compatible Board for Very Little Money”
Ubuntu Unity – The Last Straw!
The whole point about Linux, surely, is that it gives freedom back to the user.
So what’s with Ubuntu? I got used to the buttons suddenly going on the other side of the window bar in 10.04, but this whole Unity thing now has just pushed me a bit too far.