Keyestudio EASY PLUG Ultimate Starter Kit - Page 42

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5
Print the specified number in hexademical format on
newline of monitor.
6
If the serial port is available, it returns true,
otherwise returns false.
(generally used in Bluetooth communication)
7
Returns a string in serial port
8
A string read from serial port to a string variable,
pause until read the specified character.
9
Read the serial data by byte (generally used to read
the value sent from Bluetooth) (delete the data has
been read)