Buy the SmartRF05EB or SmartRF05BB to mount the CC2530EM and have easy acces to many of the GPIO's to the ZigBee SOC. Build one of the ready-to-use Sample Apps for a low power end device from the Z-Stack installer. Your motion sensor should be connected to a gpio that is configured to wake the SOC from deep sleep. CC2530EM will wake from sleep on gpio from motion sensor and exchange data with other ZigBee devices on the network as you design.
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