08/09/2016 at 07:58 •
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:
06/06/2016 at 19:23 •
Check out the latest firmware on github: https://github.com/x-labz/UV-badge/tree/master/firmware/v4.0
06/06/2016 at 15:16 •
...for the firmware V4: https://github.com/x-labz/UV-badge/blob/master/doc/uv-badge-usersguide-v4.pdf
10/29/2015 at 19:56 •
With the new improved battery management feature the device enters 'sleepwalking' mode after 30 sec. In the sleepwalking mode the display is not refreshed but the data is still acquired for the log.
Let's compare the operation modes:
Active Sleepwalking Measurement rate every 2 sec every 512 sec Display refresh every 2 sec no refresh
09/14/2015 at 16:21 •
With this custom firmware the UV-badge sensor hardware can be used as a precision ALTIMETER!
Check out the elevator test:
08/27/2015 at 08:12 •
The new v2.1 firmware implements the unit change function. Using the left-hand button, you can change the temperature unit from °C to °F, and back.
The barometric pressure can be displayed in mBar and mmHg as well.
08/23/2015 at 20:10 •
Play arcade game on the UV-badge hardware!
~20 FPS @ 8 MHz.
Only 6.5 KB ROM and 145 B RAM is required.
...and remember, there is no frame-buffer! The application generates the picture line-by-line for every frame. The CPU can't store the whole picture in it's small RAM, and the LCD is "write only'' , you can't read the data back!
08/09/2015 at 13:55 •
The sample devices for the 'best product' category are fully assembled. They will be shipped with UPS.
07/29/2015 at 19:34 •
The sample devices are ready for #bestproduct prize. The 3D printed cases are still in production.
07/08/2015 at 18:42 •
The new (UV printed) plexi cover is finally ready!!!