Wireless Temperature Measuring System Based on nRF24E1 and DS18B20

To satisfy the requirements of the current temperature data acquisition system for wireless transmission and multi-point collection,this paper proposed the short-range wireless multi-point temperature measurement system based on the wireless transceiver chip nRF24E1.The system took RF transceiver chip nRF24E1 as the core of the system,used a digital temperature sensor DS18B20,it achieved wireless short-range and multi-point temperature acquisition system.The data collected by the system were transmitted to the host computer that implemented functions of data storage,display,and query.The practice result indicates that the system can be used in a variety of temperature measurement,the single-point temperature measurement error is less than ±0.5 ℃,and the transmitedistance is about 30 meters actually in the room.