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Sun Small Programmable Object Technology (Sun SPOT)

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The Sun Small Programmable Object Technology (Sun SPOT ) is a small wireless sensor/actuator platform programmed entirely in Java “on the bare metal” (without an OS). It is based on an ARM 9 processor with 512K ram, 4 MB flash, and a 802.15.4 radio part. The Sun SPOT includes a “demo sensorboard” that hosts a 3-axis accelerometer, temperature sensor, light sensor, 8 tri-colored LEDs, 6 ADC lines and 9 digital IO pins. The device includes a battery that recharges when the Sun SPOT is plugged into a USB port. For longer-term deployments, the system supports a 36 micro-amp deep sleep mode. The Java VM, called Squawk, is specially designed for small devices, and can run many applications in the one VM. This capability, and other featu be demoed as part of the presentation. Also shown will be “SPOTWorld,” a deployment and management application.


Randall B. Smith received his PhD in Theoretical Physics from UC San Diego, and has worked at Atari Corporate Research Labs, Xerox Palo Alto Research Center, Rank-Xerox EuroPARC, and Sun Microsytems Labs. Hs research tends to focus on making computer programming more tangibly present to the user. He is creator of the Alternate Reality Kit, and co-designer of the programming language Self.

This talk is part of the Computer Laboratory Digital Technology Group (DTG) Meetings series.

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