Hello everyone, I now want to control the input of the edit box to only be numbers and dots, and I rewrote the OnChar event, but I found that when debugging on the device, when I enter numbers such as
I have just made a 2440 board and there is no program on it. How can I tell if the 2440 is working properly after powering on? Is there a frequency output pin that I can measure?
I encountered a problem in the process of designing a signal processing circuit. I need help from the experts on the forum! The input signal is a 200kHz, ±20mV pulse train. The general structure of th
Who says engineers are dull, silly, and have low emotional intelligence? After watching the short video collected for the impression test, I don't believe it. If you are still like this, then you shou