added rpi pico code and base pc code

SW/PC/main.py

@@ -0,0 +1,33 @@
+import serial
+
+def main():
+    s = serial.Serial(port="/dev/ttyACM0", parity=serial.PARITY_EVEN, stopbits=serial.STOPBITS_ONE, timeout=1)
+    s.flush()
+    
+    rw = input('Read or Write tags? [R/w]')
+    rw = rw.lower()
+    
+    if rw == 'w':
+        s.write('w'.encode())
+        while True:
+            data = input('ID:')
+            s.write(data.encode())
+    elif rw == 'r':
+        s.write('r\r'.encode())
+        while True:
+            mes = s.read_until(b'\r')
+            print(mes.decode())
+    elif rw == '':
+        s.write('r\r'.encode())
+        while True:
+            mes = s.read_until(b'\r')
+            if mes != '':
+                print(mes.decode())
+    else:
+        print('Invalid option')
+
+    
+
+
+if __name__ == "__main__":
+    main()