Fan start on boot

[gchecchin92]

I'm using a

2N3905 transistor that should be the equivalent of 2N2222.

The installation works fine, but after the boot the fan is running and the temp is 33.6'C.

With python I try to understand the state of the fan object importing just the code needed.

from gpiozero import OutputDevice

GPIO_PIN = 17  # Which GPIO pin you're using to control the fan.
fan = OutputDevice(GPIO_PIN)

after that the fan is active, and fan.active() return 0 that should mean OFF.

After that I read the OutputDevice docs and find that you can set the initial state of the object OutputDevice. So I edit the line
from
fan = OutputDevice(GPIO_PIN, [active_high=True, initial_value=False])
to
fan = OutputDevice(GPIO_PIN, active_high=False, initial_value=False)

Hope this can help someone else

[bilalh96]

Hi there,
Can you explain what the last line change that you made in the initial state of the object OutputDevice really does? I am a newbie here so need some explanation on this haha.