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→40pin GPIO port test
orangepi@orangepi3b:~$ '''sudo blink_all_gpio''' #Remember to add Sudo permissions
[sudo] password for orangepi: #You need to enter a password here'''
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# A There are a total of '''28 ''' GPIO ports can be used in the 40pins of the development board 40pin. Below is Nothat can be used. 7 pins -The following uses pin 7—the corresponding GPIO as GPIO4_A4 -is GPIO4_C3——the corresponding WPI wPi serial number 2 -as is 2—as an example to demonstrate how to set the height high and low levels of the GPIO port
::[[File:pi3b-img259.png]]
