Wireless temperature & humidity monitor and control system
The traditional cable data transmission is high cost
and big interference.instead,the wireless data transmission has
advantages like: low cost,better applicability and lower
interference.So,a kind of handheld wireless temperature and
humidity control system based on the msp430 microcontroller,
CC1101 wireless transceiver module and DHT11 temperature
and humidity sensor is designed. This system not only can
receive data by hand-held device, but also can connect to
computer with RS232 line. In this paper, software and
hardware design ideas have been givn. The practice usage
indicates that the system is stable, power consumption is small,
and can be used in various occasions where the temperature
and humidity data is needed.