Added

display_toggle.py

@@ -0,0 +1,67 @@
+#!/usr/bin/env python3
+"""
+display_toggle.py
+
+Repeatedly toggles the display ON/OFF via HTTP PUT.
+Run this while probing the 1.8 V rail manually on the scope.
+
+Usage:
+    python display_toggle.py                  # default: 2s ON, 1s OFF, forever
+    python display_toggle.py --on 5 --off 2   # 5s ON, 2s OFF
+    python display_toggle.py --count 20       # stop after 20 cycles
+    python display_toggle.py --on 0.5         # fast toggle
+
+Ctrl+C to stop cleanly.
+"""
+
+import argparse
+import requests
+import time
+
+DEVICE_URL = "http://192.168.45.8:5000/display"
+
+
+def toggle(state: str) -> bool:
+    try:
+        r = requests.put(DEVICE_URL, json={"state": state}, timeout=3)
+        return r.ok
+    except requests.exceptions.RequestException as e:
+        print(f"  WARNING: {state.upper()} request failed — {e}")
+        return False
+
+
+def main():
+    parser = argparse.ArgumentParser(description="Toggle display ON/OFF for scope probing")
+    parser.add_argument("--on",    type=float, default=2.0, metavar="SEC",
+                        help="Seconds to hold display ON  (default: 2.0)")
+    parser.add_argument("--off",   type=float, default=1.0, metavar="SEC",
+                        help="Seconds to hold display OFF (default: 1.0)")
+    parser.add_argument("--count", type=int,   default=0,   metavar="N",
+                        help="Number of ON/OFF cycles, 0 = run forever (default: 0)")
+    args = parser.parse_args()
+
+    cycles = 0
+    print(f"Display toggle — ON: {args.on}s  OFF: {args.off}s  "
+          f"Cycles: {'∞' if args.count == 0 else args.count}")
+    print("Ctrl+C to stop\n")
+
+    try:
+        while args.count == 0 or cycles < args.count:
+            cycles += 1
+            label = f"Cycle {cycles}" + (f"/{args.count}" if args.count else "")
+
+            toggle("on")
+            print(f"[{label}] ON", flush=True)
+            time.sleep(args.on)
+
+            toggle("off")
+            print(f"[{label}] OFF", flush=True)
+            time.sleep(args.off)
+
+    except KeyboardInterrupt:
+        print(f"\nStopped after {cycles} cycle(s). Leaving display OFF.")
+        toggle("off")
+
+
+if __name__ == "__main__":
+    main()