Give fine control of fan by constantly switching between states

[DonFlymoor]

It would be possible to have five control of the fan by constantly switching between states. For instance, %75 could be achieved by turning the fan to state 2 until it reaches %75, then switch between state 1 and state 2 constantly, with a short delay. This would allow the fan to start to slow a bit, then does it back up. If done fast enough, it could keep the fan turing at the desired speed without slowing. Then you could create a fan curve in speedfan or hwinfo to get optimal temperatures and volume.

[DonFlymoor]

I've tried it, and with a bit of fine-tuning it works. Here's the python code I used:

import subprocess
import time

def fancmd(command):
    si = subprocess.STARTUPINFO()
    si.dwFlags |= subprocess.STARTF_USESHOWWINDOW
    cmd = '"<pathtocommand>\\DellFanCmd.exe"'+" "+command
    subprocess.call(cmd, startupinfo=si)
    print(command)

def disable_ec():
    fancmd("ec-disable")

def enable_ec():
    fancmd("ec-enable")

def set_10():
    fancmd("fan1-level0")

def set_11():
    fancmd("fan1-level1")

def set_12():
    fancmd("fan1-level2")

def set_20():
    fancmd("fan2-level0")

def set_21():
    fancmd("fan2-level1")

def set_22():
    fancmd("fan2-level2")

def set_0():
    set_10()
    set_20()

def set_50():
    set_11()
    set_21()

def set_100():
    set_12()
    set_22()

def set_level(percentage):
    #60, 70, 80, or 90
    if percentage == 60:
        delay = 1.5
    elif percentage == 70:
        delay = 3
    elif percentage == 80:
        delay = 4.5
    elif percentage == 90:
        delay = 6
    set_50()
    time.sleep(10)
    set_100()
    time.sleep(delay)
    for i in range(0,10):
        set_50()
        time.sleep(0.1)
        set_100()
        time.sleep(0.1)

def main():
    disable_ec()
    set_level(70)
    set_50()
    #enable_ec()

if __name__ == "__main__":
    main()

[shadowzlh]

I want to know if there will be some bad effects from such frequent switching states