There is no better way to learn electronics and wearables than building your own things. The LED Breath Stats Mask is all about building a mask that displays your breathing stats. For this project, an Adafruit’s CCS811 gas sensor was used with two NeoPixel Sticks and a Circuit Playground Express.
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The sensor’s Total Volatile Organic Compound monitoring is useful for detecting acetone levels on the breath and determining whether you are burning glucose or fat. The instructions are available here.
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