trimmed main.py

This commit is contained in:
rawhide kobayashi 2025-01-06 02:10:52 -06:00
parent 12573d6245
commit cc721465fb
4 changed files with 0 additions and 71 deletions

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@ -3,84 +3,15 @@ import json
from rich import print
import time
def map_fan_range(air_temp, water_temp, max_water_temp=40, min_fan_spd=90, max_fan_spd=250):
if water_temp >= max_water_temp:
return max_fan_spd
temp_diff = water_temp - (air_temp + 2.4)
print(temp_diff)
if water_temp >= max_water_temp:
return max_fan_spd
else:
return round(min(max(temp_diff * (max_fan_spd - min_fan_spd) / 4 + min_fan_spd, min_fan_spd), max_fan_spd))
class fan_PID:
def __init__(self):
self.kp = 80.0
self.ki = 0.08
self.kd = 8.0
self.integral = 0
self.last_error = 0
self.last_time = time.time()
self.max_water_temp = 40
self.min_fan_spd = 90
self.max_fan_spd = 250
self.temp_tgt_offset = 3
self.fan_spd_offset = 10
def update(self, air_temp, water_temp):
if water_temp >= self.max_water_temp:
return self.max_fan_spd
else:
error = water_temp - (min(air_temp + self.temp_tgt_offset, self.max_water_temp))
delta = time.time() - self.last_time
if control_data['f'] != 250:
self.integral = self.integral + (error * delta)
if air_temp + self.temp_tgt_offset > water_temp - 1:
self.integral = 0
derivative = (error - self.last_error) / delta
output = self.kp * error + self.ki * self.integral + self.kd * derivative
self.last_error = error
print(self.integral, derivative, error)
return round(min(max(output + self.min_fan_spd, self.min_fan_spd), self.max_fan_spd))
# very abbreviated to fit in the arduino uno's 64 byte serial receive buffer
# the arduino will crash if the fan speed goes to 70 or below... why? god only knows...
# in addition, running the fans at speeds of over 250 will break the tachometer...
control_data = {
"f": 90,
"p": 255,
"lp": 300,
"hp": 500
}
PID = fan_PID()
while True:
try:
serial_port = serial.Serial('/dev/ttyS0', baudrate=115200)
while True:
try:
# msg = json.dumps(control_data)
# print(msg.encode('ascii'))
# serial_port.write(msg.encode('ascii'))
monitor_stats = json.loads(serial_port.readline())
print(monitor_stats)
time.sleep(1)
# control_data['f'] = map_fan_range(monitor_stats['temps']['air'], monitor_stats['temps']['water'])
# control_data['f'] = PID.update(monitor_stats['temps']['air'], monitor_stats['temps']['water'])
except Exception as e:
print(e)
break

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@ -1 +0,0 @@
X:\Dev\server-watercooling-controller\KiCad Files\server-watercooling-controller\_autosave-watercooler.kicad_sch

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@ -1 +0,0 @@
{"hostname":"SAKUYA","username":"rawhide"}