Temperature and humidity detection and alarm system based on single-chip microcomputer

The invention discloses a temperature and humidity detection and alarm system based on a single-chip microcomputer, which comprises a single-chip microcomputer and is characterized by further comprising a temperature sensor, a humidity sensor, a display module and an alarm module, wherein the temperature sensor and the humidity sensor are connected with the single-chip microcomputer through an ADC(Analog-to-Digital Conversion) module; and the display module and the alarm module are connected with the single-chip microcomputer. The temperature and humidity detection and alarm system based on the single-chip microcomputer meets the requirement of user diversity, and also meets users of different classes at the same time, not only can be installed in residential houses to use, but also can be installed in crop greenhouses or warehouses to use. The temperature and humidity detection and alarm system performs early warning on a risk by using an alarm circuit, thereby enabling the users toquickly know that the environment is abnormal. In addition, the temperature and humidity detection and alarm system realizes wireless transmission of signals by using a ZigBee module, and avoids tedious construction and inconvenient use brought about by wired transmission.