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Electronic dummy load is a work of readily-available art

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Electronic dummy load is a work of readily-available art

Arduino TeamMarch 5th, 2019

As seen here, Juan had some problems with his power supply, and while he wanted to “simply” build another one, he didn’t let the power supply go to waste. Instead he converted it into an adjustable dummy load based on the design by Dave Jones’ shown below.

This device, however, is no mere duplication of Jones’ and adds an Arduino for control, allowing for voltage, current, power, and temperature monitoring. The enclosure was designed in Fusion 360 and 3D-printed, and the front panel overlay in Inkscape. 

Other interesting tricks include using a readily available DC motor for input instead of an encoder, along with an array of 7-segment displays that don’t quite all match, but act as functional outputs nonetheless. 

Code for the project is up on GitHub.

[youtube https://www.youtube.com/watch?v=8xX2SVcItOA?feature=oembed&w=500&h=281]

Website: LINK

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