As you may recall, I have plans to use a Freescale ARM development board (such as a KL25Z, or a K20D50M) as an I/O interface for at least one Raspberry Pi project. These boards are a bit like a super-Arduino: small enough to fit in the archetypal mint ton, bristling with pins for digital, analog, …
Continue reading ‘Code Warrior, Eclipse, and Freedom boards’ »
After my previous post on delimiter-free languages it occurred to me that the idea of txtzyme has merit for communication between some of the devices I have to hand. Some while ago I spent some time producing some bare-metal code examples for the Raspberry Pi (flashing morse code, GPIO control and uart stuff, for example), …
Pretty much everything I have done with my Raspberry Pi boards so far has either used the Raspbian Linux operating system, or my own “bare metal” code. From time to time I have been a bit frustrated with some of the choices in Raspbian, such as the difficulty in building device drivers. I have also …
A few weeks ago I was experimenting with the clever little “bus pirate” board and its odd control language. A little later I was reading an article about some of the fun things Ward Cunningham has been getting up to with electronics, and I came across “txtzyme.” Thinking further on the similarities between the two …
Continue reading ‘Delimiter-free languages – bus pirate and txtzyme’ »
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 …
Continue reading ‘Is it possible to have too many microcontrollers?’ »
Despite mentioning it months ago, I still have not got myself organized when it comes to looking after the growing collection of SD cards with different versions of Raspberry Pi software on them. It doesn’t help that many of them are outwardly identical, either. Having failed to buy any little stickers, I have now decided …
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’ »
It all started when I took a hurried bag full of Raspberry Pi-related bits and bobs to Norwich, and then spent over an hour trying to get a simple network connection working between my laptop and the Raspberry Pi. Ever since then I have been looking for a way to quickly and simply connect the …
Just a relatively short post this time, as I ease myself back into the blogging habit. In case you are interested; since my last post I have been travelling round the South West of the UK with my family, spending time with friends and relations along the way. Very pleasant to have a break, but …