SunSPOT

SUN SPOT (Small Programmable Object Technology) est une technologie de noeuds de réseaux de capteurs sans fil programmables en Java.

Caractéristiques Matérielles

 * 180 Mhz 32-bit ARM920T core, 512K pSRAM/4M FlashRAM
 * ChipCon 2420 radio 2.4 GHz IEEE 802.15.4
 * USB interface
 * 3.7V rechargeable 750 mAh prismatic lithium ion battery
 * 40 uA deep sleep mode, 40 mA to 100+ mA
 * 64 mm x 38 mm
 * Double sided connector for stackable boards

Sensors and Actuators
 * 8 tri-color LEDs
 * 3D accelerometer
 * 5 general purpose I/O pins
 * 4 hi current output pins
 * 1 A/D converter
 * Temperature sensor
 * Light sensor

Squawk JVM and Runtime

 * Motivations : Memory constrained devices
 * Fully capable J2ME-level Java VM with OS functionality
 * Features
 * No operating system : Runs on the bare metal on ARM
 * Device driver are written in Java
 * Isolate application model (sub/super set of JSR121)
 * Inter-isolate communication
 * Provides lower-level asynchronous message delivery
 * Memory footprint : 80K for the VM, 270K for the Runtime

Liens

 * http://www.sunspotworld.com/
 * Squawk http://research.sun.com/projects/squawk
 * Download SunSPOT Manager