clockworkpi/DevTerm
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Changed the an control so that it considers every thermal zone separately, rather than just kind of wrongly lumping them all together and possibly getting the temperature values a bit confused. Added some log messges. Added function to read the fan state from GPO and made the control function use that rather than guess whether the fan is on.

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This commit is contained in:
Chris Smith 2022-06-10 05:46:20 +00:00
parent 6765b86f86
commit 45b4a6d078
1 changed files with 31 additions and 14 deletions
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45
Code/devterm_fan_daemon_cpi_a06/temp_fan_daemon_a06.py
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@ -16,7 +16,7 @@ MAX_TEMP=60000
TEMP_THRESH=2000
ONCE_TIME=30
lastTemp = 0
lastTemp = {}
gpiopath="/sys/class/gpio"
gpiopin=96
@ -34,6 +34,9 @@ def fan_off():
init_fan_gpio()
open("%s/gpio%i/value" % (gpiopath,gpiopin),"w").write("0")
def fan_state():
return int(open("%s/gpio%i/value" % (gpiopath,gpiopin),"r").read()) == 1
def isDigit(x):
try:
float(x)
@ -90,30 +93,44 @@ def set_performance(scale):
def fan_loop():
global lastTemp
statechange = False
hotcount = 0
coolcount = 0
while True:
temps = glob.glob('/sys/class/thermal/thermal_zone[0-9]/')
temps.sort()
statechange = False
hotcount = 0
coolcount = 0
for var in temps:
#Initial check
if not var in lastTemp:
sys.stderr.write("Found zone: " + var + "\n")
lastTemp[var] = 0
_f = os.path.join(var,"temp")
#print( open(_f).read().strip("\n") )
_t = open(_f).read().strip("\n")
if isDigit(_t):
if int(_t) > MAX_TEMP:
if lastTemp <= MAX_TEMP:
sys.stderr.write("Temp: " + str(_t) + " Fan on.\n")
fan_on()
statechange = True
if lastTemp[var] <= MAX_TEMP:
sys.stderr.write("Temp(" + var +"): " + _t + "; hot.\n")
hotcount += 1
else:
#Don't turn it off right at the threshold
if int(_t) + TEMP_THRESH < MAX_TEMP:
if lastTemp + TEMP_THRESH >= MAX_TEMP:
sys.stderr.write("Temp: " + str(_t) + " Fan off.\n")
fan_off()
statechange = True
lastTemp = int(_t)
if statechange:
break
if (int(_t) + TEMP_THRESH) < MAX_TEMP:
if (lastTemp[var] + TEMP_THRESH) >= MAX_TEMP:
sys.stderr.write("Temp(" + var + ": " + _t + "; cool.\n")
coolcount += 1
lastTemp[var] = int(_t)
if hotcount > 0:
if not fan_state():
#sys.stderr.write("Temps: " + str(lastTemp) +"\n")
sys.stderr.write("Fan on, " + str(hotcount) + " zones hot.\n")
fan_on()
else:
if coolcount > 0:
if fan_state():
#sys.stderr.write("Temps: " + str(lastTemp) +"\n")
sys.stderr.write("Fan off, " + str(hotcount) + " zones hot.\n")
fan_off()
time.sleep(5)
def main(argv):