Hehe has the correct answer for you:

There is no fixed method for connecting the at89s52 microcontroller to the breadboard. I can only tell you the general usage precautions and basic requirements:

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1 Chips and components can be directly connected to the wiring port of the breadboard, but it should be noted that the two rows of pins of the dual-in-line microcontroller chip must be plugged into the interface of the breadboard with isolation in the middle. That is to say, it must be inserted along the way, not horizontally (that is, the pins in the left and right rows cannot be short-circuited).

2 Use special plug-in wires for breadboards to connect tightly and firmly between different pins on the chip and components.

3 Different signals are connected using different colored wires. For example, the power wire uses a red wire, the ground wire uses a black wire, the data wire uses a white wire, and the control wire can use a yellow or blue wire. This can avoid mistakes and confusion.

4 For special chip pins (which cannot be directly inserted into the breadboard), you can use a conversion socket for plugging, or you can solder the plug wire

to the device and then Connected by patch cord.

5 Be sure to connect the breadboard according to the electrical schematic diagram

6 After the connection is completed, carefully check that everything is correct before powering on the breadboard.

Haha, I will provide you with this help. I hope you will adopt it and choose a satisfactory answer