I have been separated from my girlfriend for a while. I was not used to it at first, but gradually I found that I could live well alone, and I missed her less and less. We had a small conflict some ti
I'm in urgent need of an oscillator circuit that can output a 100MHz sine wave. Crystal or LC is fine. It must meet all the requirements. The price is 50 RMB. If you have a circuit diagram, please add
I would like to ask everyone, if I want to realize data collection and communication of about 20 nodes, should I use binding or something else? I am not familiar with key routing, please help me...