Small things because fuck sd cards

orchestrateur/sensors/rgb_lcd.py

@@ -1,6 +1,6 @@
 import time
 import sys
-from sensors.lock import grove_lock
+from sensors.lock import safe_grove_access
 
 if sys.platform == 'uwp':
     import winrt_smbus as smbus
@@ -18,7 +18,6 @@ else:
 DISPLAY_RGB_ADDR = 0x62
 DISPLAY_TEXT_ADDR = 0x3e
 
-
 def setRGB(r, g, b, brightness=1.0):
     """Set backlight to (R,G,B) with optional brightness level (0.0 to 1.0)."""
     brightness = max(0.0, min(1.0, float(brightness)))
@@ -27,7 +26,9 @@ def setRGB(r, g, b, brightness=1.0):
     g_scaled = int(max(0, min(255, g * brightness)))
     b_scaled = int(max(0, min(255, b * brightness)))
 
-    with grove_lock:
+    with safe_grove_access(timeout=1.0) as acquired:
+        if not acquired:
+            return
         try:
             bus.write_byte_data(DISPLAY_RGB_ADDR, 0, 0)
             bus.write_byte_data(DISPLAY_RGB_ADDR, 1, 0)
@@ -38,15 +39,15 @@ def setRGB(r, g, b, brightness=1.0):
         except OSError:
             pass
 
-
 def textCommand(cmd):
     """Send command to display (internal use)."""
     bus.write_byte_data(DISPLAY_TEXT_ADDR, 0x80, cmd)
 
-
 def setText(text):
     """Set display text (\n for second line or auto wrap)."""
-    with grove_lock:
+    with safe_grove_access(timeout=1.5) as acquired:
+        if not acquired:
+            return
         try:
             textCommand(0x01)  # Clear display
             time.sleep(0.05)
@@ -67,14 +68,15 @@ def setText(text):
                         continue
                 count += 1
                 bus.write_byte_data(DISPLAY_TEXT_ADDR, 0x40, ord(c))
-                time.sleep(0.001)  # Small pacing delay to prevent LCD buffer overflow
+                time.sleep(0.001)
         except OSError:
             pass
 
-
 def setText_norefresh(text):
     """Update display text without full screen erase."""
-    with grove_lock:
+    with safe_grove_access(timeout=1.5) as acquired:
+        if not acquired:
+            return
         try:
             textCommand(0x02)  # Return home
             time.sleep(0.05)
@@ -97,6 +99,6 @@ def setText_norefresh(text):
                         continue
                 count += 1
                 bus.write_byte_data(DISPLAY_TEXT_ADDR, 0x40, ord(c))
-                time.sleep(0.001)  # Small pacing delay to prevent LCD buffer overflow
+                time.sleep(0.001)
         except OSError:
             pass