It recently occurred to me that I have been accumulating microcontroller development boards for a while, so I thought I’d lay them out for a photo! Reading left to right, top to bottom you can see: STM32 “value line” Discovery board STM32-L Discovery board STM32-F0 Discovery board STM32-F4 Discovery Board Cubieboard Freescale Freedom KL05Z Freescale …
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The day after we got back from our holiday travels, I popped in to a nearby Aldi store. Every week they have “special buys”, and sometimes they can be bargains. What tempted me in was the idea of a relatively low-cost battery-operated LED light, with an infra-red remote control. I bought one, but I haven’t …
Continue reading ‘My new favourite Raspberry Pi accessory’ »
Today seems to have been mostly about porting. I’ve not really developed anything new, but I have learned a lot by moving things around between machines. Yesterday I was a little disappointed with the un-tuned performance of the FFT code I had found and got running on the Freescale Freedom KL25Z, so I decided to …
One of the characteristics of “Problem-Oriented Languages” (POL) is that they are tiny. The language run-time provides just enough to enable a programmer to extend the language into something appropriate to the needs and terminology of the domain. This “tininess” also extends to memory usage. On a single process system the complete language and operating …
This evening I presented a session on Raspberry Pi at The Ipswich Ruby User Group (IPRUG). I think the presentation went well, as dd the Q&A session which followed. Unfortunately, all my plans to demonstrate stuff fell through. Mainly this was due to my own lack of preparation rather than any problems with the hardware …
Last month, when I found my Raspberry Pi again and started this blog, I had a look around the web to see what was happening in the world of Raspberry Pi. One of the things I kept bumping into was the “Gertboard” – an almost mythical input/output expansion board, named after Gert van Loo, its …