JAVA SUN SPOT (Sun Small Programmable Object Technology) - For programming
Sun SPOT (Sun Small Programmable Object Technology) is a sensor node for a wireless sensor network developed by Sun Microsystems. The device used the IEEE 802.15.4 standard for its networking, and unlike other available sensor nodes, used the Squawk Java virtual machine.
The completely assembled device fit in the palm of a hand.
Its first processor board included an ARM architecture 32 bit CPU with ARM920T core running at 180 MHz. It had 512 KB RAM and 4 MB flash memory. A 2.4 GHz IEEE 802.15.4 radio had an integrated antenna and a USB interface was included.
A sensor board included a three-axis accelerometer (with 2G and 6G range settings), temperature sensor, light sensor, 8 tri-color LEDs, analog and digital inputs, two momentary switches, and 4 high current output pins.
The unit used a 3.7V rechargeable 750 mAh lithium-ion battery, had a 30 uA deep sleep mode, and battery management provided by software.
It comes from the folks in Sun's Labs and SPOT stands for Small Programmable Object Technology. Sun SPOTs (at least this initial version of them, there will probably be others) can fit in the palm of your hand and are essentially tiny wireless Java Virtual Machine-based computers.
In other words, their programming can be modified for a wide variety of applications to which these little devices might come in handy. For example, with six analog interface, a Sun SPOT could be the heart and sole of an unmanned vehicle.
One of the more interesting features of Sun SPOTs is how their programming can by dynamically changed -- sort of the way androids on Star Trek have can have their programming changed. And these changes can be made via a USB cable.
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