SALE! - last two pieces

A project log for UV-badge

wearable UV Index & weather sensor

x-labzx-labz 08/09/2016 at 07:582 Comments

You can buy the last sample pieces for $55 / item. (postage included)

The adapter clip for the in-system-programmer will be $10 / piece. The adapters will be shipped few weeks later, because those are out of "stock".


- temperature measurement: °C / °F

- barometric pressure: mBar

- altimeter: meter / feet ( you can zero the altitude value, and the device will show you the difference when you eg. climb a hill, or go up to a skyscreeper)

- UV index

- the device takes a measurement in every 2 sec when in active mode, after 30 s left unattended falls to sleep, but takes measurement in every 30 min. so you can have an ~12 hour chart of measure data.

The "UV index hour" ( UVIh - the accumulated or summed UV index) was removed, because after some experiments I found it quite useless (the device should face very precisely directly towards the sun for hours to get acceptable result)

Anyway you can measure the actual UV index by turning the sensor directly in the sun direction.

Short VIDEO of the current firmware in action:


x-labz wrote 09/04/2016 at 06:12 point

Hi Stefan,

yes, two items left. Three extra sample items were produced for the 2015 HackadayPrize / Best Product contest. Contact me at if you are interested. 

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Stefan-Xp wrote 09/03/2016 at 17:28 point

Hi there,

so you have some left for sale?

Best regars,


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