I want to make a motion sensor. If it is installed on a door or window, it can detect when the door or window is opened. The accuracy requirement is not high. I just want to detect whether the door or
[p=25, 2, left][font=微软雅黑, "][b]Suggestions[/b][/font][/p][p=28, 2, left][font=微软雅黑, "]Some beginners spend a lot of time on theory, but still don't understand PLC after half a year. In fact, they jus
There is about 100mv of noise in the waveform in the figure, and the voltage of the horizontal line is 2V. Can the noise be filtered out to below 10mv or lower through a first-order active filter (the
[size=4][b]{:1_102:}The following content is original by ST front-line engineers. Friends, please come and have a look. Questions and discussions are welcome. § 0 to 100% Humidity measurement range§ O