Comparison of applying sleep mode function to the smart wireless environmental sensing stations for extending the life time

This paper has reported the design of smart wireless environmental sensor station by interfacing the environmental sensors directly to the zigbee module and performs analogue-to-digital conversion through it. Then the API data packets command were used to transmit the ADC values of the sensors to the coordinator, whereas the AT data packets commands were used to monitoring the environmental conditions through sensor station based on the user's environmental specification limits.