+3.3V / GND / TX pins to power this 7-segment display with Serial Port connection. It works, but during booting time, the display displays random things, probably because it receives random values on
I would like to set the 7-segment display ON only when my Python code starts, and OFF by default (during booting time).
Is there a +3.3V or +5V GPIO pin that is default to OFF (during boot), and that I can power ON with my code?
Is there a way to prevent GPIO TX to send random values during booting time?