I want to drive an LCD that needs 6V from a RaspberryPi. The Pi has a 3.3V logic power-pin, and a 5V power-pin that's directly connected to the MicroUSB-PowerSupply.
Am i right in the assumption that all MicroUSB-Supplies are regulated, so the PI expects / delivers regulated 5V-voltage on this pin?
What happens i connect a voltage-converter (Step-Up?) to this 5V line and connect this circuit to the GPIO-InputPins? Is that even possible? Does the circuit then have 5V or the voltage that the converters delivers?