Working with it.

PC_CONTROL_CODE/.gitignore

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+testing

PC_CONTROL_CODE/main.dht22.py

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+import time
+import board
+import adafruit_dht
+
+# https://randomnerdtutorials.com/raspberry-pi-dht11-dht22-python/
+
+# Sensor data pin is connected to GPIO 4
+sensor = adafruit_dht.DHT22(board.D4)
+# Uncomment for DHT11
+#sensor = adafruit_dht.DHT11(board.D4)
+
+while True:
+    try:
+        # Print the values to the serial port
+        temperature_c = sensor.temperature
+        temperature_f = temperature_c * (9 / 5) + 32
+        humidity = sensor.humidity
+        print("Temp={0:0.1f}ºC, Temp={1:0.1f}ºF, Humidity={2:0.1f}%".format(temperature_c, temperature_f, humidity))
+
+    except RuntimeError as error:
+        # Errors happen fairly often, DHT's are hard to read, just keep going
+        print(error.args[0])
+        time.sleep(2.0)
+        continue
+    except Exception as error:
+        sensor.exit()
+        raise error
+
+    time.sleep(3.0)

PC_CONTROL_CODE/main.py

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+import serial, time
+
+# CONST
+MD1200BAUD = 38400
+SERIALADAPTER = "/dev/ttyUSB0"  # In Windows it would be something like COM3
+
+# init
+MDserial = serial.Serial(
+    port=SERIALADAPTER,\
+    baudrate=MD1200BAUD,\
+    parity=serial.PARITY_NONE,\
+    stopbits=serial.STOPBITS_ONE,\
+    bytesize=serial.EIGHTBITS,\
+    timeout=1)
+
+
+# Check if UART is used
+# Not neede because when defining MDserial it gets automatically opened
+# try:
+#     MDserial.open()
+# except serial.serialutil.SerialException:
+#     # MDserial.close()
+#     # MDserial.open()
+#     print("Port allready opened.\nTry closing it first")
+
+
+def getTemp():
+    print()
+
+def setSpeed():
+    print()
+
+while True:
+    MDreturning = MDserial.read_until(" >").decode()
+
+    # sleep(50)
+    MDfanspeed = getTemp(MDreturning)
+
+    setSpeedrcode = setSpeed()
+
+    if setSpeedrcode == 0:
+        continue
+    elif setSpeedrcode == -1:
+        continue
+    else:
+        print("o nyo")
+        exit()
+
+
+
+    
+
+# https://stackoverflow.com/questions/52578122/not-able-to-send-the-enter-command-on-pyserial
+# MDserial.write("_temp_rd\n\r".encode())
+
+# getTemp()
+# print(MDserial.read_until(" >"))
+
+# fanprct = 23
+
+# MDserial.write(f"set_speed {fanprct}\n\r".encode())
+
+
+
+
+# print("closing port")
+# MDserial.close()

PC_CONTROL_CODE/requirements.txt

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+pySerial == 3.5