Friends who need information, please contact the Wangwang store owner, or QQ 271885846 for reference [url=http://space.taobao.com/958eaaba7d6ea34b4e87143d04fa66ec/show_blog-18653393.htm] so that all m...
I want to use an electronic scale to make an automatic weighing controller. The material to be weighed is metal powder, with a weighing range of 10-999g and a weighing accuracy of 1g. The design ideas...
When making a high-speed data converter, a high-frequency clock signal of about 50M is required, and the output signal is required to be good. How to obtain it? Can a voltage-controlled crystal oscill...
1. Primary school numerical calculation: 0.65( 。)73( 。)÷1.5( 。)4869( 。)=0.X( 。)XXX………XXXX( 。) 2. Use two common I/O ports of a 3.3V working CPU, such as P0.0, P0.1 and Vc=3.3V, R1>1K, R2=?, R3=? to po...