Orange Pi-Lite - GPIO (power)

April 9, 20179 yr

Is it possible to turn off / on the voltage (5V) GPIO from the command line ? ....
So turn off eg 16x2 LCD power ....Is it possible only physically eg disconnecting the cable ( 2 , 4 - GPIO)

April 9, 20179 yr

No, it is directly connected to power supply line. Which display do you have exactly? It is hard to suggest alternatives without knowing exact pinout.

April 9, 20179 yr

Author

thanks for the information

April 10, 20179 yr

You can power on/off the LED of the LCD using digital pins, not the power pins.

May need resistor.

April 12, 20179 yr

On 2017/4/9 at 8:33 PM, kris777 said:

Is it possible to turn off / on the voltage (5V) GPIO from the command line ? ....
So turn off eg 16x2 LCD power ....Is it possible only physically eg disconnecting the cable ( 2 , 4 - GPIO)

When using the switch circuit, it's possible.
The switch circuit is possible by the photo switch or a transistor.

When the switch does a blue line, a backlight of LCD turns on /OFF.