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Wifi modules enable sensor nodes to send data directly to Cloud servers or any Smartphone

February 27, 2012 | Jean-Pierre Joosting | 222902570
Wifi modules enable sensor nodes to send data directly to Cloud servers or any Smartphone Libelium has launched a Wifi module for the Waspmote sensor platform. The radio module adds an extra layer of intelligence to the nodes allowing them to send the collected data to any web server in the Cloud. The Wifi sensor nodes will also be capable of sending data to any iPhone or Android device nearby by creating direct links with them.

This Wifi radio extends the possibilities of The Internet of Things to iPhone/Android apps developers as it completes the current connectivity possibilities — already covered by ZigBee, Bluetooth and 3G/GPRS — allowing for the first time direct communications between the sensors and the smartphones even without an intermediate router.

These Wifi sensors are also capable of using the secure version of the standard web protocol -HTTPS- ensuring the privacy of the information sent, a major concern when deploying wireless sensor networks in cities. They can also create TCP and UDP connections enabling developers to design their own communication framework between the sensor nodes and the Cloud servers.

Libelium provides an intuitive and open source programming API and complete documentation with examples in order to help developers to easily start working with the platform. Demo applications for iPhone and Android are also available for free, in order to easily test the new Wifi sensor capabilities from any Smartphone.

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