Adding Serial communication to Python code

Readme.md

@@ -218,3 +218,60 @@ void loop() {
   }
 }
 ```
+
+# Python serial communication 
+
+First install Srialpy with:
+```sh
+pip3 install serialpy
+```
+
+```python
+import serial
+import time
+
+ser = serial.Serial('/dev/cu.usbmodem101', 115200, timeout=1)  # Adjust port
+time.sleep(2)  # Wait for Arduino reset
+
+# Example: read temperatures
+ser.write(b'T1\n')
+t1 = ser.readline().decode().strip()
+time.sleep(1)  # Wait for Arduino reset
+print('T1 =', t1, '°C')
+ser.close()
+```
+
+For multiple readings and data store:
+```python
+import numpy as np
+import matplotlib.pyplot as plt
+m = 300 #seconds
+Q = np.zeros(m)
+T = np.zeros(m)
+Q[10:250] = 100
+plt.plot(Q,'.k')
+plt.show()
+```
+
+```python
+import time
+
+ser = serial.Serial('/dev/cu.usbmodem101', 115200, timeout=1)  # Adjust port
+time.sleep(2)  # Wait for Arduino reset
+
+for i in range(m)):
+    value = Q[i]
+    command = f"Q1 {value}\n"
+    ser.write(command.encode('ascii'))
+    ser.write(b'T1\n')
+    t1 = ser.readline().decode().strip()
+    T[i] = t1
+    time.sleep(1)
+    if (i%10==0):
+      print(Q[i], T[i])
+    
+value = 0
+command = f"Q1 {value}\n"
+ser.write(command.encode('ascii'))
+ser.close()
+```