Category Archives: Electronics

Hacking the Wii Motion Plus

I’ve been looking for a 3-axis gyroscope recently, and I came across the Wii Motion Plus. Fortunately, other people have done the hard work of reverse engineering the protocol and written this up elsewhere. In short, it’s a nice simple … Continue reading

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Dead slug

My slug died. No, not the sort that shrivels up when it comes across salt, but my Linksys NSLU2. As it turns out, the power supply is known to be a bit flaky. Again, dodgy electrolytic capacitors. Who’d have thought … Continue reading

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Black box

A while back, you may remember that I had to put together an RS-232 level shifter for my NSLU2′s serial console. It’s been working reliably so far, despite hanging loose as a bare piece of stripboard dangling from the other … Continue reading

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More repairs

I thought it was about time to write here about my DVD player and my CD player.

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Blinking Lights of Death

I have a Netgear GS108 8-port gigabit ethernet switch, which died the other day. I found it working normally for a few seconds, and slowly flashing all of its lights for a few seconds, over and over again. During the … Continue reading

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Contactless payment card

My bank recently sent me a new debit card, which included the non-optional feature of contactless payment. This is based on NFC (Near Field Communication) technology, which utilises a loop antenna to allow a reader to communicate with the chip … Continue reading

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Driving an LCD module from an FPGA

Some time ago I bought a Digilent Nexys 2 FPGA development board and a Digilent PmodCLS LCD module. I spent some time implementing a more or less trivial CPU in the FPGA, and various bits and pieces to aid with … Continue reading

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Memory upgrade

Some months back, I picked up a 1GB DIMM at a computer fair. It was cheap, which was about the only thing going for it, but I thought I’d take a chance on it. When I got home I plugged … Continue reading

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Playing with hardware

I decided to have a play around with digital hardware. Having been exposed to some verilog at work, and seen that FPGA development boards have become quite affordable, I thought I’d have a go.

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