When you think about serial communications, Microsoft Excel isn’t typically the first program that springs to mind. But this spreadsheet has a rather powerful scripting language hidden away inside it, ...

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** Example Phenomenon：After the program runs, it can be observed that ** 1. When the LED light is on, the serial port sends a setting subdivision command ** 2. If the setting is successful, the LED ...

** 1. The LED light is on, that is, the serial port sends a setting subdivision command ** 2. If the setting is successful, the LED light will flash slowly, and you can check the set working mode ...