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test update test e
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Behind only smoking and obesity, exposure to UV radiation is a leading cause of preventable cancer cases in the UK. With that in mind, I wanted to minimise my exposure during periods of dangerous intensity, while also spending as little time and money on protecting myself as possible.
To help with this, I made a portable sensor unit to help me decide in real time if the UV risk justified my effort, eliminating reliance on my phone for estimates and looking pretty too.
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Murray Sherrington, and I’m a student living in the UK. I’m interested in the ways technology can be used for the expression, augmentation and automation of human abilities, as a medium for creative expression, and as an opportunity for profit. I believe the future belongs to those that build it, and that my interests can help it be a better one.
I intend to maintain this site as a selection of the interesting things I’ve discovered, made, or otherwise formed an opinion on, uploaded for your interest and for my reference.
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I recently purchased a few 8x8 WS2182 led matrices, and wanted a cool project to test them on. Each WS2182 led is individually addressable, has 32bit color, can refresh at up to 400Hz, and can be easily chained with a simple one wire protocol. Given these capabilities, I thought an ESP32-C3 powered console would be a great choice.
Assembly was simple, with a single bracket per panel attached to a bamboo chopstick providing enough support. A capacitor was added across the display VIN/GND to smooth out inrush current from the battery, and an admittedly bad controller was made from the handful of tiny smd buttons I had available. I initially intended to have a cover and button casings, but poor tolerances on my 3D printer made them difficult to fit. If I ever update this hardware, the controller will certainly be changed.
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