关键词】热释电红外传感器，菲涅尔透镜，单片机，语音警示电路 [gap=729]KEYWORDS pyroelectric infrared—detector，Fresnel lens，MCU，voice alarm circuit
基于4个网页-相关网页
This design mainly include: obstacle detection circuit, obstacle ranging circuit, temperature measurement circuit, speed measurement circuit, display circuit, voice alarm circuit and so on.
本设计包括障碍物探测电路、障碍物距离检测电路、温度检测电路、车速检测电路、显示电路、声音提示电路等。
The music alarm clock from SCM system is the smallest system and the expansion of LED display circuit and voice circuit .
该音乐闹钟系统是由单片机最小系统及扩展LED显示电路和语音电路组成。
应用推荐