range Pi User Manual Copyright reserved by Shenzhen Xunlong Software Co., Ltd
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3) There are a total of 28 GPIO ports in the 40pin interface. The voltage of all GPIO
ports is 3.3v
3.15. How to install wiringOP
Note that wiringOP has been pre-installed in the Linux image released by
Orange Pi. Unless the code of wiringOP is updated, there is no need to re-download,
compile and install, and use it directly.
The storage path of the compiled wiringOP deb package in orangepi-build is:
orangepi-build/external/cache/debs/arm64/wiringpi_x.xx.deb
After entering the system, you can run the gpio readall command. If you can see
the following output, it means that wiringOP has been pre-installed and can be used
normally.
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