IPSO challenge 2013

The winners of the IPSO challenge 2013 was announed last week here. Colorado Micro Devices, you may know this guys already from the RadioBlock modules, participated in the challenge, came among the top 10 semi finalists and finally made it to the second place. How is that related to µracoli? Simply by the fact that we reused parts of this years Chemnitz Linux Days project. Especially this was  Icinga, that  was installed on a Raspberry-Pi and on a Cloud server. In difference to the Linux Days project we used MQTT instead of SNMP. MQTT makes it easier to operate from behind a firewall, since the local Rasperry-PI needs no official IP address, in order to be reached from the server, instead it publishes the sensor data to the cloud server actively. Thanks to the open source MQTT implementation from the Mosqitto project, we could quickly change from SNMP to the new protocoll, that fits perfectly as transport layer for sensor data.