How to route the positive and negative lines of the LED on the PCB, with the smallest loop and the best anti-interference ability? What is the most appropriate route? Does the master have any relevant
I downloaded an AT89S51 ISP burner circuit diagram and an online programmer from the Internet. The programmer and the circuit diagram are packaged together. However, after soldering the circuit, I con
One reply said that the power metering chip cannot be used. Why? The second question is to make a recognizable minimum current appliance with resistors. Can you give me some ideas?
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