esp32: log startup and UART receive for debugging

Made-with: Cursor

esp32/main.py

@@ -51,11 +51,14 @@ def ensure_peer(addr):
             raise
 
 
+print("Starting ESP32 main.py")
+
 while True:
     if uart.any():
         data = uart.read()
         if not data or len(data) < 6:
             continue
+        print(f"Received data: {data}")
         addr = data[:6]
         payload = data[6:]
         ensure_peer(addr)