Implement notetaking app, ST7796 display with touch support, audio beep navigation, and video streaming

scratch/nuke_boot.py

@@ -0,0 +1,71 @@
+import serial
+import time
+import os
+import sys
+
+PORT = '/dev/cu.usbmodem101'
+print("=== MicroPython Boot Interrupter & Recovery Tool ===")
+print(f"Waiting for {PORT} to appear. Please press the RESET button on the board...")
+
+while True:
+    try:
+        ser = serial.Serial(PORT, 115200, timeout=1.0)
+        print("\n[+] Port opened successfully!")
+        break
+    except Exception as e:
+        # Port not present or busy
+        time.sleep(0.01)
+
+print("[*] Sending Ctrl-C storm to halt boot sequence...")
+# Send 100 Ctrl-C interrupts in rapid succession
+for _ in range(100):
+    try:
+        ser.write(b'\x03')
+        time.sleep(0.005)
+    except Exception as e:
+        print(f"Write error during storm: {e}")
+        break
+
+time.sleep(0.1)
+ser.reset_input_buffer()
+
+# Check if we have REPL access by sending a newline and expecting a prompt
+print("[*] Verifying REPL responsiveness...")
+ser.write(b'\r\n')
+time.sleep(0.2)
+
+if ser.in_waiting:
+    resp = ser.read(ser.in_waiting)
+    print(f"REPL Response:\n{resp.decode('utf-8', errors='ignore')}")
+else:
+    print("[-] No response to newline, trying to force it...")
+    ser.write(b'\x03\r\n')
+    time.sleep(0.2)
+    resp = ser.read(ser.in_waiting)
+    print(f"REPL Response:\n{resp.decode('utf-8', errors='ignore')}")
+
+# Try to rename main.py to stop it from running on subsequent boots
+print("[*] Attempting to disable main.py...")
+rename_code = b"""
+import os
+try:
+    os.rename('main.py', 'main_bad.py')
+    print('RENAME:OK')
+except Exception as e:
+    print('RENAME:ERROR:', e)
+"""
+ser.write(rename_code + b'\r\n')
+time.sleep(0.5)
+
+if ser.in_waiting:
+    result = ser.read(ser.in_waiting).decode('utf-8', errors='ignore')
+    print(f"Execution Output:\n{result}")
+    if "RENAME:OK" in result:
+        print("[+] SUCCESS! main.py has been disabled.")
+        print("[+] You can now safely upload files or reboot.")
+    else:
+        print("[-] Rename failed or returned unexpected output.")
+else:
+    print("[-] No response to rename command.")
+
+ser.close()