Keychain sized UV and environmental sensor
Designed by xlabz in Hungary
This product is no longer available for sale.
The seller may be offering an improved version or it may be hanging out on the beach, enjoying the retired life.
What is it? A small, wearable instrument to check UV index, air temperature, humidity and air pressure. The latest firmware (v4.0) has the following functions: temperature measurement: °C / °F…
Read More…A small, wearable instrument to check UV index, air temperature, humidity and air pressure.
The latest firmware (v4.0) has the following functions:
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.
Why is it important?
Natural sunlight contains UV rays, they are important for life (e.g. body's vitamin D production)
However, too much UV exposure can cause serious health problems, so you have to achieve the optimal UV dose for your body.
On the other hand, tracking and predicting weather changes has been desired by people for a long time. The basis of weather observation is still the measuring and recording of barometric air pressure, temperature and relative humidity.
Avoid Sunburn
On the one hand you can check the current UV index, on the other hand you can keep track of the accumulated UV exposure checking the "UV index hour" value, which correlates with the UV erytherma dose.
By monitoring the UV index you can protect yourself in time (e.g. by applying sunblock, using some shading...)
Predict weather changes or storms
The rule of thumb is, when the pressure is stationary or slowly rising, you can expect nice weather. Falling pressure is followed by bad weather, and quickly falling pressure usually means that a storm is coming.
Estimate elevation
Atmospheric pressure changes ~12 mBar / 100m. By reading the pressure difference, you can easily calculate the altitude change.
Indoor humidity control
Too low or high humidity can be uncomfortable, check the indoor humidity then turn on the humidifier if it's too low, or if it's too high you can decrease it by airing the room or turning on the air conditioner.
Observe the trend in the changes of the values
The observation of the changes in the environmental characteristics can also be meaningful.
Lightweight: 11g Dimensions: 50mm * 32mm * 8.1 mm
2015 Hackaday Prize - Best Product Finalist http://hackaday.com/2015/08/24/10-best-product-finalists-announced/
Programming adapter included!
If you want to tinker with the software, you will need the programming adapter clip as well: check out the 7th step of the instuctions: https://hackaday.io/project/4706-uv-badge
To re-flash the device you need a ATMEL ICE ISP or compatible programmer (obviously its not included in the set)
You can do this:
ARCADE GAMES!!! ;-)
DEMO:
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