Electro-ramblings

An Engineer in Wonderland has a new home. You can find this particular entry here. If you wish to leave a comment, please do that on the new blog.

Little did I know when I

An Engineer in Wonderland has a new home. You can find this particular entry here. If you wish to leave a comment, please do that on the new blog.

There was a drawback to thoroughly removing the nasty old glass insulation from my loft and replacing it with nice safe polyester fluff.

Rodents have moved in.

It may just be a coincidence, but when I took out the mineral wool there were only a couple of birds nests in the loft and not a sign of a mouse.

Now I hear little feet scurrying around at night, and things are starting to get chewed.

An Engineer in Wonderland has a new home. You can find this particular entry here. If you wish to leave a comment, please do that on the new blog.

They are made of not-particularly-stretchy plastic - polyethylene I think - and are blown up hard enough to make a noise a bit like a drum - a thankfully quiet drum - when you hit them.

The valve is simply some more of the skin material formed into a tube and stuffed inside one end. The only closing force appears to come from internal air pressure.

• en.wikipedia.org/wiki/Solar_cell
• en.wikipedia.org/wiki/Waste_Electrical_and_Electronic_Equipment_Directive
• en.wikipedia.org/wiki/Memristor
• en.wikipedia.org/wiki/Long_Term_Evolution
• en.wikipedia.org/wiki/3GPP_Long_Term_Evolution
• en.wikipedia.org/wiki/P.A._Semi
• en.wikipedia.org/wiki/Avometer
• en.wikipedia.org/wiki/Printed_electronics
• en.wikipedia.org/wiki/Split-pi
• en.wikipedia.org/wiki/Application-specific_integrated_circuit
• en.wikipedia.org/wiki/E-UTRA

• Vicor
• Agilent

• FTDI Chip" border
• FRAMOS Electronics
• Ecopac Power
• ACAL Technology
• Envirowise
• Pico Technology

While these multicore devices clear the way for increased performance, this can only be achieved if software developers adapt the way they write code so that it fully uses the newly realised hardware resources they have available. Here is an outline of the multicore programming "problem" and list five top tips for software developers to prepare themselves for the new "parallel landscape" in front of them.

An Engineer in Wonderland has a new home. You can find this particular entry here. If you wish to leave a comment, please do that on the new blog.

Some motorcycles have digital gear indicators, some of which work by grounding one of five contacts depending on what gear you are in - plus one for neutral.

For the record, others use a potentiometer, and some after-market versions calculate the gear after measuring engine revs and wheel speed.

I was googling gear indicators and came across this circuit to interface such switches to a seven segment display. 

It is classical digital approach to the problem, with three logic chips and a regulator.

An Engineer in Wonderland has a new home. You can find this particular entry here. If you wish to leave a comment, please do that on the new blog.

With developments made in the efficacy of white LEDs in the past few years, LED technology is driving the future of lighting.

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