em250芯片datasheet。Ember公司的EM250是单片机解决方案，它集成了2.4GHz、兼容IEEE 802.15.4的收发器以及一个16位XAP2b微处理器。-em250 chip datasheet. Ember' s EM250 is a single chip solution that integrates a 2.4GHz, IEEE 802.15.4-compliant transceiver and a 16-bit XAP2b microprocessor.

Wireless Sensor Networks (WSNs) have attracted much attention in recent years. The potential applications of WSNs are immense. They are used for collecting, storing and sharing sensed data. WSNs have been used for various applica- tions includin

A Simulation Model for the IEEE 802.15.4 Protocol: Delay/Throughput Evaluation of the GTS Mechanism