Made a basic watchdog system for Pico

main.py

@@ -1,12 +1,44 @@
 import serial
+import threading
 
-pishock = serial.Serial('/dev/tty.usbserial-120')
+def listen(keep_alive_event, pi):
+    while True:
+        message = pi.readline().decode()
+        if '\n' in message:
+            if "keep-alive" in message:
+                keep_alive_event.set()
+            else:
+                print("Other stuff is happening")
+        else:
+            print("No newline found")
 
-pishock.baudrate = 115200
-pishock.timeout = 15 
 
-print(pishock)
+def watchdog(keep_alive_event):
+    while True:
+        alive = keep_alive_event.wait(1.0)
 
-pishock.write(b'{"cmd": "info"}\n')
+        if alive:
+            print("Yay!")
+            keep_alive_event.clear()
+        else:
+            print("Nay!")
+
+
+if __name__ == "__main__":
+
+    pi = serial.Serial('/dev/tty.usbmodem2101')
+
+    pi.baudrate = 115200
+    pi.timeout = 0.1 
+
+    print(pi)
+
+    keep_alive = threading.Event()
+    
+    listen_thread = threading.Thread(target=listen, args=(keep_alive, pi))
+
+    watchdog_thread= threading.Thread(target=watchdog, args=(keep_alive,))
+
+    listen_thread.start()
+    watchdog_thread.start()
     
-print(pishock.readlines())