For a long time I have been using the AVR port of FreeRTOS as the platform for my Arduino hardware habit. I’ve written (acquired, stolen, and corrupted) a plethora of different drivers and solutions for the various projects I’ve built over the last years. But, sometimes it would be nice to just try out a […]
There’s a great new Arduino Uno (pre-R3) Shield available from Open Music Labs. Their Audio Codec Shield is an Arduino shield that uses the Wolfson WM8731 codec. It is capable of sampling and reproducing audio up to 88kHz, 24bit stereo, but for use with the Arduino it is practically limited to 44kHz, 16bit stereo. The Audio Codec Shield has 1/8″ […]
This post is a bit of a mixed bag, describing some software and hardware integration, together with some raving about a great tool I’ve been using. So, let’s get started. Platform Some time ago I got a Freetronics EtherMega, which is essentially a…
I’ve been spending some time integrating the Rugged Circuits QuadRAM extension for the Arduino Mega (or Freetronics EtherMega) into the freeRTOS environment. And, it is now my standard environment. Actually, the MegaRAM, a slightly cheaper 128kByt…
This is an unboxing and porting review of the Freetronics EtherMega. It is an Arduino Mega 2560 compatible product, with the added goodness of a Wiznet W5100 Ethernet module and a MicroSD card cage on board. http://www.freetronics.com/products/eth…
I’ve created a Sourceforge project as a place to host all my current tools and working environment. Sourceforge freeRTOS & libraries for AVR ATMEGA That’s the thing about open source. Sometime you have to give back. Things I’m really happy about: …
In Part 2 I promised to build a very stylish finished product, that could be displayed with pride. Well, I don’t think I’ve quite achieved that. But, at least now I consider the project finished, and now have the confidence to get on with other pr…
Just for interest, I decided to see how the support for AVR or Arduino was on the PS3. Using the standard tools on Ubuntu Lucid 10.4 from my OtherOS installation. A quick search for AVR on synaptic got the avr-lib, avr-gcc, and avrdude tools neede…
Part 2 of this project involved learning how to use hardware PWM to control servos. And, then to make the clock actually work with retrograde analogue hands. First the functional definition. A retrograde movement in horological terms is where the …
I was pondering the blank space on my 2010 recently, and combining that space with some other left over kit from Dogbot, I decided to make a dual retrograde analogue clock. To build the clock I have the choice of either using NTP to sync a wireles…
Gone Bush 