Added option to allow user to choose 24-hour or 12-hour time

config.example.py

@@ -2,5 +2,6 @@
 WIFI_SSID = "YourSSID"  # Set this to your Wi-Fi network name
 WIFI_PASSWORD = "YourPassword"  # Set this to your Wi-Fi network password
 
-# Timezone settings
+# Time settings
+USE_24_HOUR = False  # Set this to True for 24-hour time (no AM/PM)
 UTC_OFFSET = -5  # Set this to your desired NTP server

main.py

@@ -76,6 +76,14 @@ def draw_scaled_text(display, text, x, y, scale=2):
                 display.fill_rect(x + (c * scale), y + (r * scale), scale, scale, 1)
 
 
+def calculate_x_spacing(text, scale=1):
+    """
+    Calculates the amount of horizontal (x) spacing is needed to center a string.
+    """
+    scaled_text = len(text) * scale
+    return (128 - (scaled_text * 8)) // 2
+
+
 # --- Main Loop ---
 DAYS = ["Mon", "Tue", "Wed", "Thu", "Fri", "Sat", "Sun"]
 
@@ -83,29 +91,37 @@ while True:
     local_epoch = time.time() + (Config.UTC_OFFSET * 3600)
     year, month, day, hour_24, minute, second, weekday, _ = time.localtime(local_epoch)
 
-    # 1. Determine AM/PM and 12-hour format
-    period = "AM" if hour_24 < 12 else "PM"
-    hour_12 = hour_24 % 12
-    if hour_12 == 0:
-        hour_12 = 12
-
-    # Format time without leading zero (or use {:2d} for alignment)
-    time_str = f"{hour_12:2d}:{minute:02d}"  # 5 characters -> 80px at 2x
-    date_str = f"{DAYS[weekday]} {year}-{month:02d}-{day:02d}"  # 14 chars -> 112px
-
     oled.fill(0)
 
-    # 2. Draw 2x scaled time (starts at x=14)
+    # Draw 24-hour time
-    time_x = 14
+    if Config.USE_24_HOUR:
-    time_y = 12
+        # Time string (HH:MM:SS is 8 chars -> 8 chars * 8px * 2x = 128px wide)
-    draw_scaled_text(oled, time_str, x=time_x, y=time_y, scale=2)
+        time_str = f"{hour_24:02d}:{minute:02d}"
 
-    # 3. Draw AM/PM in standard 1x font (aligned with the bottom of the 16px digits)
+        # Draw time at 2x scale (16px high, spans 128px across)
-    oled.text(period, time_x + (len(time_str) * 16) + 4, time_y + 8)
+        time_x = calculate_x_spacing(time_str, 2)
+        draw_scaled_text(oled, time_str, x=time_x, y=14, scale=2)
+
+    # Draw 12-hour time (AM/PM)
+    else:
+        # 1. Determine AM/PM and 12-hour format
+        period = "AM" if hour_24 < 12 else "PM"
+        hour_12 = hour_24 % 12
+        if hour_12 == 0:
+            hour_12 = 12
+
+        # Format time without leading zero (or use {:2d} for alignment)
+        time_str = f"{hour_12}:{minute:02d}"
+
+        # 2. Draw 2x scaled time
+        time_x = calculate_x_spacing(time_str, 2)
+        draw_scaled_text(oled, time_str, x=time_x, y=12, scale=2)
+        # 3. Draw AM/PM in standard 1x font (aligned with the bottom of the 16px digits)
+        oled.text(period, time_x + (len(time_str) * 16) + 4, 12 + 8)
 
     # 4. Draw date centered horizontally underneath
-    date_x = (128 - (len(date_str) * 8)) // 2
+    date_str = f"{DAYS[weekday]} {year}-{month:02d}-{day:02d}"
-    oled.text(date_str, date_x, 42)
+    oled.text(date_str, calculate_x_spacing(date_str), 42)
 
     oled.show()
     time.sleep(0.5)