More GPIO info

Orange-Pi-GPIO-pins.md

@@ -39,3 +39,21 @@ http://www.orangepi.org/Docs/Pindefinition.html
 
 USB GPIO on Orange Pi One is difficult, need someone with awesome solder skills: https://forum.armbian.com/topic/755-orange-pi-one-adding-usb-analog-audio-out-tv-out-mic-and-ir-receiver/
 http://linux-sunxi.org/images/7/7e/ORANGE_PI-ONE-V1_1.pdf
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+Orange Pi GPIO - Interfacing
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+https://forum.armbian.com/topic/4940-how-to-turn-onoff-orangepi-pc-from-button-on-gpio/
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+  https://github.com/duxingkei33/orangepi_PC_gpio_pyH3
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+  https://gist.github.com/BiTinerary/2734ac46e80af2b1a2158c9f0ba79e25
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+https://diyprojects.io/orange-pi-onelite-tutorial-use-gpio-python-pinouts/
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+Adjust device default LEDs.
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+Raspi example of LED lighting:
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+https://thepihut.com/blogs/raspberry-pi-tutorials/27968772-turning-on-an-led-with-your-raspberry-pis-gpio-pins