基于MSP430F149的温湿度传感器DHT21（又名AM2301）控制程序。 说明：空闲时单片机处于LPM3,若串口收到有效命令唤醒单片机开启采集，温湿度值以字符形式发送到串口，用串口调试助手即可观察。-Temperature and humidity sensors based on MSP430F149 DHT21 (also known as AM2301) control procedures. Note: when the MCU is in idle LPM3, if the

DHT21使用范例,硬件连接： P2.0口为通讯口连接DHT11,DHT11的电源和地连接单片机的电源和地，单片机串口加MAX232连接电脑.-DHT21 usage examples, hardware connection: P2.0 port as communication port connected DHT11, DHT11 the power and ground connections and power microcontroller, the microcontroller