This is the news page for the WolkenThermometer. For more technical details about the project please visit the WolkenThermometer Project Page

The last 2 days members of the Otelo Gmunden have helped on manufacturing some PCBs. The location and host event was the Almtal EXPO in Scharnstein, where many visitors were impressed by the skills of these young people. The results look like from a PCB factory! Special thanks go to Friedrich Feichtinger, the leader of the Elektronik-Node for managing his group and helping with the production.
Otelo Gmunden
Forum of the Elektronik-Node

You can have a glance at current measurements of the prototype:
The most recent data point The last 24h

datafetch.php?maxlen=1&history=1&key[1]=AtAH8ziYVr

• maxlen is limited to 1000, and represents the number of data points
• history is a value in hours (max. xxx hours in the past)
• key[1] is the public key of the prototype

is in the form

<publicKey>&<date-time>&<temperature>&<battery>

AtAH8ziYVr&2015-04-04 01:43:49&0.31&59.1 

Means: 0.31°C and 59.1% battery

Many thanks here again to Benny Sällberg from Sällberg Technologies who has contributed with the server software to this project!

Heute Nacht um 5:52 hat der Prototyp seine Letzte Nachricht übermittelt. Untersuchungen am Vormittag haben gezeigt, dass die Leerlaufspannung der Batterie immer noch 3.8V ist. Bei einem Sendeversuch bricht die Spannung jedoch auf unter 2.3V zusammen. Grund dafür ist die niedrige Umgebungstemperatur von ca. 0°C. Im Vergleich dazu bricht die Batteriespannung bei Raumtemperatur z.B. von 3.880V nur auf 3.844V zusammen.

Nach einer passenden Lösung wird nun mit Nachdruck gesucht.

The datafetch.php can now accept the parameter '?web', which results in an HTML formatted table.

Example: http://me.zeilhofer.co.at/wt-test/datafetch.php?maxlen=1000&history=24&key[1]=AtAH8ziYVr&web