《常用运放电路集锦》美国国家半导体公司 资料 介绍了运放的典型应用- Collection of commonly used operational amplifier circuit, the United States National Semiconductor OPAMP information on the typical application
学习如何控制蜂鸣器的声音输出,这次我们只输出一个频率的声音,试验使用的是交流蜂鸣器。我们的电路中用P17来驱动-Learn how to control the buzzer sound output, this time we only output one frequency sound, experimenting with the use of a communication buzzer. Our circuit using P17 to drive the