Fallback ntfy server

main.py

@@ -79,6 +79,24 @@ def disconnect_wifi():
     wlan.deinit()
     print('Disconnected')
 
+def send_notification(notify_url):
+    print('Sending notification to ' + notify_url + '...')
+    # Send notification
+    request = requests.post(notify_url, data="Csengo", headers={
+        'Title': 'Dany Csengo', 
+        'Priority': '5', 
+        'X-Tags': 'bell'
+    })
+    print(request.content)
+    request.close()
+
+def set_cpu_to_high_freq():
+    machine.freq(125000000)
+
+def set_cpu_to_low_freq():
+    machine.freq(20000000)
+
+    
 door_bell = machine.Pin(14, machine.Pin.IN, machine.Pin.PULL_DOWN)
 debug_mode = machine.Pin(15, machine.Pin.IN, machine.Pin.PULL_DOWN)
 
@@ -100,29 +118,28 @@ disconnect_wifi()
 
 blink_onboard_led(2)
 print('Changing frequency and beginning loop...')
-machine.freq(20000000)
+set_cpu_to_low_freq()
 while True:
     doorbell_current_state = door_bell.value()
     debug_current_state = debug_mode.value()
 
     if debug_last_state == False and debug_current_state == True:
-        machine.freq(125000000)
+        set_cpu_to_high_freq()
         print('Frequency is set to default')
         blink_onboard_led(5)
+    debug_last_state = debug_current_state
     
     if doorbell_last_state == False and doorbell_current_state == True:
-        machine.freq(125000000)
+        set_cpu_to_high_freq()
         led.value(1)
         connect_wifi()
         
-        notify_url = 'https://ntfy.sh/adix-dany-doorbell-test'
-        request = requests.post(notify_url, data="Csengo", headers={
-            'Title': 'Dany Csengo', 
-            'Priority': '5', 
-            'X-Tags': 'bell'
-        })
-        print(request.content)
-        request.close()
+        try:
+            send_notification('https://ntfy.sh/adix-dany-doorbell-test')
+        except:
+            print('Error sending notification')
+            blink_onboard_led(3)
+            send_notification('https://ntfy.adix.link/adix-dany-doorbell-test')
         
         disconnect_wifi()
         
@@ -132,7 +149,7 @@ while True:
         # Sleep for 5 sec to avoid multiple triggers AND too frequent frequency change
         print('Waiting 5 seconds before changing frequency...')
         time.sleep(5)
-        machine.freq(20000000)
+        set_cpu_to_low_freq()
     
     doorbell_last_state = doorbell_current_state
     time.sleep_ms(200)