I measured the resistance of the oscilloscope probe and found that the resistance of the x1 range is more than 200, while the resistance of the x10 range is more than 9M. What is the reason???
What is...
[i=s] This post was last edited by Yunhu Congbai on 2022-1-14 10:20 [/i] ## Preface The board has not been received yet. Let's get the compilation environment done first, and then merge M23 into my M-...
I want to make a very small circuit, which requires a 3.3V\10ma power supply to charge a 3v button lithium battery. I checked carefully and found that the 3.3v\10ma power supply can be charged directl...
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