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Upcycle a Vintage Milliampere Meter

Presenting another project from the “VIntage Upcycling With Raspberry Pi and Arduino” recently published on Amazon. In the New Zealand, it is distributed by The Shed magazine.

When I found a YOKOGAWA milliampere meter dated 1972 circa I was not sure what to do with it, but it was in very good conditions, so I decided to buy it on the second-hand market. After a good cleaning to the Bakelite case, I tried to see how it was working measuring the low power levels of an Arduino connected to an RGB LED. As the gauge of the milliampere meter worked fine but with a lower sensibility than expected, I removed the coil from inside and repeated the test, getting a better result.
Then, I focused my efforts on the options available for a new project: the YOKOGAWA upcycling.
Due to the available space inside the case after removing the measuring coil, for this project I decided to use an Arduino UNO. The idea is to show the interaction of the device with the environment sounds and loudness generating some visual effects with lights and a consistent motion of the milliampere meter gauge.

(from the chapter introduction of Vintage Upcycling With Raspberry Pi and Arduino).

From The Shed magazine YouTube channel, the making-of the milliampere meter upcycling.

The book is available in digital Kindle ebook and paperback format.

Every project presented in the book includes details and links to hack, replicate or improve them by yourself.

Want to know more? Download the pdf book preview to the link below!

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