I want to switch (toggle) two devices using one GPIO pin and basic components. To achieve that I designed circuit containing one FET driving first device and two FET transistors for driving second device using inverter circuit. Design presented in attached picture:
I would like to figure out practical aspects about this circuit:
Is this correct solution for this simple problem? What can be improved?
Do I need resistors between GPIO and transistor gates? Or maybe pull down resistors for every gate? How will circuit behave when GPIO signal is floating (e.g. microcontroller boot time)?
What is the switching time between devices? Can I safely assume that only one device is always ON? Or maybe I should expect current spikes when devices are switching?