Project v1

main.py

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+import rp2
+import network
+import ubinascii
+import machine
+from machine import Pin
+from time import sleep
+import urequests as requests
+import time
+from secrets import secrets
+import socket
+
+# Set country to avoid possible errors
+rp2.country('HU')
+
+print('Starting up...')
+
+wlan = network.WLAN(network.STA_IF)
+
+# Define blinking function for onboard LED to indicate error codes    
+def blink_onboard_led(num_blinks):
+    led = machine.Pin('LED', machine.Pin.OUT)
+    for i in range(num_blinks):
+        led.value(1)
+        time.sleep_ms(200)
+        led.value(0)
+        time.sleep_ms(200)
+
+def connect_wifi():     
+    wlan.active(True)
+    # If you need to disable powersaving mode
+    # wlan.config(pm = 0xa11140)
+
+    # See the MAC address in the wireless chip OTP
+    mac = ubinascii.hexlify(network.WLAN().config('mac'),':').decode()
+    print('mac = ' + mac)
+
+    # Other things to query
+    # print(wlan.config('channel'))
+    # print(wlan.config('essid'))
+    # print(wlan.config('txpower'))
+
+    # Load login data from different file for safety reasons
+    ssid = secrets['ssid']
+    pw = secrets['pw']
+
+    wlan.connect(ssid, pw)
+
+    # Wait for connection with 10 second timeout
+    timeout = 10
+    while timeout > 0:
+        if wlan.status() < 0 or wlan.status() >= 3:
+            break
+        timeout -= 1
+        print('Waiting for connection...')
+        time.sleep(1)   
+    # Handle connection error
+    # Error meanings
+    # 0  Link Down
+    # 1  Link Join
+    # 2  Link NoIp
+    # 3  Link Up
+    # -1 Link Fail
+    # -2 Link NoNet
+    # -3 Link BadAuth
+
+    wlan_status = wlan.status()
+    blink_onboard_led(wlan_status)
+
+    if wlan_status != 3:
+        raise RuntimeError('Wi-Fi connection failed')
+    else:
+        print('Connected')
+        status = wlan.ifconfig()
+        print('ip = ' + status[0])
+
+def disconnect_wifi():
+    wlan.disconnect()
+    wlan.active(False)
+    wlan.deinit()
+    print('Disconnected')
+    
+door_bell = machine.Pin(14, machine.Pin.IN, machine.Pin.PULL_DOWN)
+debug_mode = machine.Pin(15, machine.Pin.IN, machine.Pin.PULL_DOWN)
+
+doorbell_last_state = False
+doorbell_current_state = False
+
+debug_last_state = False
+debug_current_state = False
+
+""" led = Pin('LED', Pin.OUT)
+print('Blinking LED Example')
+
+while True:
+  led.value(not led.value())
+  sleep(0.5) """
+
+led = Pin('LED', Pin.OUT)
+disconnect_wifi()
+
+blink_onboard_led(2)
+print('Changing frequency and beginning loop...')
+machine.freq(20000000)
+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)
+        print('Frequency is set to default')
+        blink_onboard_led(5)
+
+    if doorbell_last_state == False and doorbell_current_state == True:
+        machine.freq(125000000)
+        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()
+
+        disconnect_wifi()
+        
+        led.value(0)
+        time.sleep_ms(200)
+        blink_onboard_led(1)
+        # 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)
+    
+    doorbell_last_state = doorbell_current_state
+    time.sleep_ms(200)