I’ve not blogged here for a few days. Unfortunately my “real job” got very busy. In the meanwhile I received another package of bits I had ordered from China weeks ago and mostly forgotten about ;) Among other things in this package were some clone Arduino Mini Pro boards. These little boards have a SMD …
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If your workbench is anything like mine it’s covered in cables of one sort or another. Anything that helps manage that tangled complexity is a good thing, so I was very interested when I saw the “cerberus” multi-headed USB cable available from Sparkfun and distributors. As I hope you can see from the picture, it …
Continue reading ‘“Cerberus” a single USB cable for Raspberry Pi, Arduino and Freedom boards’ »
After thinking about how to drive the MAX7219 LED array I built yesterday, it occurred to me that maybe this is an ideal time to get to the bottom of how to use the Bus Pirate board that I failed to use with a MCP3002 ADC chip. This time I was determined to get it …
Continue reading ‘Testing a MAX7219 LED array with Bus Pirate’ »
In my continuing quest to get ultrasonic sound information in to a Raspberry Pi so I can do interesting stuff with bat sounds, one of the candidate devices I have identified is the Freescale Freedom KL25z board. Unlike the MCP3002 that I tried to connect to recently, this is not just an analogue to digital …
Continue reading ‘Using Raspberry Pi with a Freescale KL25z’ »
“Pirates and SPIs” sounds like a cheesy adventure story, but I’m afraid it’s more likely to be a serial than an exciting drama. A few days ago I had a delivery of some components I had ordered, including a MCP3002 analogue to digital converter. The data sheet for this device claims that it can do …
It seems like ages ago that I was complaining about not being able to access the UART pins when an add on board is attached to the GPIO header of my Raspberry Pi. I even drew a picture of what I was looking for. I still haven’t found anything exactly like that, but I have …
Following yesterday’s bumpy start, I was determined to make some progress with Minecraft today. I had hunted round our storage and gathered the following: A Dell Vostro 200 desktop with 1GB RAM which my wife used before she got her laptop. We stopped using this because its hard drive broke and it refused to boot …
I have spent a few days planning for my talk at IPRUG tomorrow evening. One of the things I was hoping to do was demonstrate a standalone Raspberry Pi controlling a USB missile launcher that I have had laying around unused for a few years. I got the device out of its box, found some …
A relatively quick post today. I started back at work after the Christmas break, and I wanted to take my little Pi in to show my colleagues some of the things I have been playing with during the holidays. Last night, while I was getting my stuff ready I though I’d have one more try …
Before I left for our holiday travels, I ordered a couple of extra toys for my Raspberry Pi, both from UK dealer Proto-PIC.co.uk The first was a “prototyping plate” from Aadafruit which brings out the on-board connections to a circuit board and some screw connectors for solderless cabling. This one is “some assembly required”, so …