June UV Sensor Bracelet Teardown

June is a UV exposure sensing bracelet by Netatmo. It communicates over Bluetooth low energy to iOS devices, tracking your exposure over time and triggering reminders to reapply SPF. We took it apart to see how it works:
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[@thehaarpreport9203]

Wow, what a great technical analysis! I understood everything she said, and it made perfect sense. UV safety is becoming a bigger issue every day, especially in California (big ozone holes). Could you do more teardowns on UV sensors?

[@gudenau]

That qr code.