ecg: handle ble inactive exception

preload/apps/ecg/__init__.py

@@ -8,9 +8,9 @@ import math
 import struct
 import itertools
 import bluetooth
-from ecg.settings import *
+import ecg.settings
 
-config = ecg_settings()
+config = ecg.settings.ecg_settings()
 
 WIDTH = 160
 HEIGHT = 80
@@ -89,6 +89,7 @@ class ECG:
                         self.disp.backlight(0)
 
     def __init__(self):
+        try:
             self.b = bluetooth.BLE()
             self.b.active(True)
             self.b.irq(self.ble_irq)
@@ -106,6 +107,9 @@ class ECG:
             # Disable streaming by default
             self.ble_streaming = False
             self.b.gatts_write(self.ecg_cccd_handle, "\x00\x00")
+        except OSError:
+            self.ble_streaming = False
+            pass
 
         leds.dim_top(1)
 
@@ -169,15 +173,11 @@ class ECG:
 
     def callback_ecg(self, datasets):
         if self.ble_streaming:
-            # try:
-            if 1:
             self.b.gatts_notify(
                 1,
                 self.ecg_data_handle,
                 struct.pack(">" + ("h" * len(datasets)), *datasets),
             )
-                # except:
-                pass
 
             # Don't update the screen if it should be off during a connection
             if not config.get_option("BLE Disp"):