Category: Project
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Then and now – 37 years in electronics
In 1985 I completed the final year project for my electronic engineering degree. The project I chose was an ultrasonic level detector. Here is the introduction from my report which explains the use scenarios… Without getting too technical, the solution involved using a special purpose ultrasonic transceiver integrated circuit (LM1812 by National Semiconductor) surrounded by…
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Learning 3D – modelling & printing
A “real life” situation When learning something new, I find it very useful to have an actual application to which the learning applies. I had previously made a couple of attempts at learning 3D modelling using Blender but with essentially nothing to show for it, due to a few reasons, one of which was that…
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Yacht keel winch controller – Part 1
Quandary My friend came to me with an interesting problem… he was doing some work on his yacht and wanted to improve the mechanism for raising and lowering the keel. Mechanically the keel is controlled by an electric motor (essentially an old cordless drill) turning a drum that winds a cable attached to the keel.…