Nowadays, everyone's life is inseparable from mobile phones. For some people, tablets or computers are also essential tools for their lives and work. People have no energy if they don't eat, and elect
APM32 has a built-in RTC as shown belowIt says that you can choose LSI, so I want to test the accuracy of using LSI.
I have used ST products, and LSI products are not very accurate either. Some produc
Recently, a user of a Macosin oscilloscope asked how to use an oscilloscope to calculate the harmonic content of a signal. So today we will systematically learn how an oscilloscope measures the harmon