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Sun SPOT, Wireless Sensors Networks
1. Sun SPOT
Wireless Sensors Networks
José Jaime Ariza
ISIS group (University of Málaga)
Slideshare version, original version at http://jariza.net/ponencias.
8. 2. COMMUNICATIONS
A sensor may use a communication device to connect to a
network, but it is of key importance that devices “speak” a
common language.
9. 2. COMMUNICATIONS
ISO standarizes the different communication levels
of devices, so that they can understand each other.
WIRELESS PERSONAL AREA
NETWORKS (WPAN)
WIRELESS LOCAL AREA
NETWORKS (WPAN)
12. 2. COMMUNICATIONS
ISO standarizes the different communication levels
of devices, so that they can understand each other.
Security (authentication and privacy)
Hardware interfacing
13. 2. COMMUNICATIONS
ISO standarizes the different communication levels
of devices, so that they can understand each other.
Fixed network
14. 2. COMMUNICATIONS
ISO standarizes the different communication levels
of devices, so that they can understand each other.
Mobile network
15. 2. COMMUNICATIONS
ISO standarizes the different communication levels
of devices, so that they can understand each other.
Mobile network
27. 4. Sun SPOT
Communications
• Wireless
– 802.15.4
– +250Kbps
– ZigBee support
– Topologies: adhoc, mesh, cluster tree, star.
• Wired
– USB
28. 4. Sun SPOT
Sqwak VM
• Mainly written in Java.
• Runs on ARM9 without underlying OS.
• Drivers written in Java.
• Open Source.
• Isolate application model.
29. 4. Sun SPOT
Build and deploy flow
Javac
Java source
Squawk suit
converter
SunSPOT
Build