Troubleshooting

gaugemqttcontinuous.py

@@ -155,6 +155,7 @@ BL_UNIT = _cfg.get("backlight_unit", "%")
 # Gauge initialization
 # ---------------------------------------------------------------------------
 
+info("Initialising gauge objects...")
 gauge_objects = []
 for g in gauges:
     gauge_objects.append(
@@ -169,6 +170,7 @@ for g in gauges:
     info(
         f"Gauge {g['id']}: {g['name']} pins={g['pins']} mode={g['mode']} range=[{g['min']}, {g['max']}]"
     )
+info("Gauge objects done")
 
 gauge_targets = [g["min"] for g in gauges]  # target value per gauge
 gauge_last_rezero = [utime.ticks_ms() for _ in gauges]
@@ -318,6 +320,7 @@ def check_wifi():
 # LEDs (per gauge)
 # ---------------------------------------------------------------------------
 
+info("Initialising LEDs...")
 num_gauges = len(gauges)
 leds_red = []
 leds_green = []
@@ -327,7 +330,13 @@ for g in gauges:
     leds_green.append(Pin(g["green_pin"], Pin.OUT, value=0))
 
 total_backlight_leds = num_gauges * (BACKLIGHT_LEDS_PER_GAUGE + STATUS_LEDS_PER_GAUGE)
-leds_bl = NeoPixel(Pin(BACKLIGHT_PIN), total_backlight_leds)
+info(f"Total backlight LEDs: {total_backlight_leds}")
+leds_bl = (
+    NeoPixel(Pin(BACKLIGHT_PIN), total_backlight_leds)
+    if total_backlight_leds > 0
+    else None
+)
+info("LEDs done")
 
 backlight_color = [(0, 0, 0) for _ in range(num_gauges)]
 backlight_brightness = [100 for _ in range(num_gauges)]
@@ -339,10 +348,6 @@ status_led_green = [False for _ in range(num_gauges)]
 _bl_dirty_since = None
 _BL_SAVE_DELAY_MS = 5000
 
-backlight_color = [(0, 0, 0) for _ in range(num_gauges)]
-backlight_brightness = [100 for _ in range(num_gauges)]
-backlight_on = [False for _ in range(num_gauges)]
-
 
 def _flush_backlight(client):
     for i in range(num_gauges):
@@ -391,9 +396,11 @@ def set_backlight_color(gauge_idx, r, g, b, brightness=None):
     leds_per_gauge = BACKLIGHT_LEDS_PER_GAUGE + STATUS_LEDS_PER_GAUGE
     base_idx = gauge_idx * leds_per_gauge
     for j in range(BACKLIGHT_LEDS_PER_GAUGE):
-        leds_bl[base_idx + j] = (int(g * scale), int(r * scale), int(b * scale))
+        if leds_bl:
+            leds_bl[base_idx + j] = (int(g * scale), int(r * scale), int(b * scale))
     _update_status_leds(gauge_idx)
-    leds_bl.write()
+    if leds_bl:
+        leds_bl.write()
     _mark_bl_dirty()
 
 
@@ -411,13 +418,17 @@ def set_backlight_brightness(gauge_idx, brightness):
     leds_per_gauge = BACKLIGHT_LEDS_PER_GAUGE + STATUS_LEDS_PER_GAUGE
     base_idx = gauge_idx * leds_per_gauge
     for j in range(BACKLIGHT_LEDS_PER_GAUGE):
-        leds_bl[base_idx + j] = (int(g * scale), int(r * scale), int(b * scale))
+        if leds_bl:
+            leds_bl[base_idx + j] = (int(g * scale), int(r * scale), int(b * scale))
     _update_status_leds(gauge_idx)
-    leds_bl.write()
+    if leds_bl:
+        leds_bl.write()
     _mark_bl_dirty()
 
 
 def _update_status_leds(gauge_idx):
+    if not leds_bl:
+        return
     leds_per_gauge = BACKLIGHT_LEDS_PER_GAUGE + STATUS_LEDS_PER_GAUGE
     base_idx = gauge_idx * leds_per_gauge + BACKLIGHT_LEDS_PER_GAUGE
 
@@ -443,7 +454,8 @@ def set_status_led(gauge_idx, led_type, state):
     elif led_type == "green":
         status_led_green[gauge_idx] = state
     _update_status_leds(gauge_idx)
-    leds_bl.write()
+    if leds_bl:
+        leds_bl.write()
 
 
 # ---------------------------------------------------------------------------
@@ -812,21 +824,29 @@ def publish_state(client):
 
 
 def main():
+    utime.sleep_ms(0)
     info("=" * 48)
     info("Gauge MQTT controller starting")
     info("=" * 48)
 
+    info("Connecting WiFi...")
     connect_wifi(WIFI_SSID, WIFI_PASSWORD)
+    info("WiFi done")
 
     info("Zeroing gauges on startup ...")
     for i, g in enumerate(gauge_objects):
         g.zero()
         info(f"Zeroed gauge {i}")
-    info("Zero complete")
+    info("Zero done")
 
+    info("Connecting MQTT...")
     connect_mqtt()
+    info("MQTT done")
+
+    info("Publishing discovery...")
     publish_discovery(client_ref)
     publish_state(client_ref)
+    info("Discovery done")
 
     info("Entering main loop")
     info("-" * 48)
@@ -843,6 +863,7 @@ def main():
     last_heartbeat = utime.ticks_ms()
 
     while True:
+        utime.sleep_ms(0)
         try:
             check_wifi()