Need help Connecting Raspberry pi W with Blynk Servers

Solved
1

Details: i am new to Rasp Pi W (loaded with MicroPython) and Blynk But not new to Python :wink:
so i am tryin to connect my Pi with Blynk it seems that i got no response the terminal shows nothing as you will see in my code i added some code to check if it is a server issue or Pi is not connected to Wi-Fi(tho pi is successfully connected with my hotspot) . Also, i tried pinging blynk-cloud.com in CMD which returned
Ping request could not find host blynk - cloud . com. Please check the name and try again.
Then i searched on the forum and i got a post that mentioned some server addresses one of them was
fra1.blynk.cloud i pinged this and got pong from it, so i thought a handshake might be possible with this server then i used this example
blynk = blynklib.Blynk(BLYNK_AUTH,server='fra1.blynk.cloud', port=443, ssl_cert='/certificate/blynk-cloud.com.crt',heartbeat=30, rcv_buffer=1024, log=print)
didn’t work even tried without the ssl_cert=NoneNothing happened
print(blynk.connected()) this always print False
then i tried changing server address within lib replaced the default address with fra1.blynk.cloud and tried blynk = blynklib.Blynk(BLYNK_AUTH) this simple example but no luck.

• Hardware model: Raspberry pi W
• Smartphone OS: Android 14
• Blynk server region: sgp1
(not sure, i am in China and use VPN, mostly i use a German Server)
• Blynk Library version 0.2.6
(So board is successfully connected to Wifi)
#below is code to connect with Blynk
any help will be appriciated :slight_smile:

BLYNK_AUTH = 'MY_AUTH_TOKEN'
blynk = blynklib.Blynk(BLYNK_AUTH,server='fra1.blynk.cloud', port=80,heartbeat=30, rcv_buffer=1024, log=print)
# blynk.connect()
if blynk.connected() == False:
    print(blynk.connected())
    print('Blynk not connected yet...')
    time.sleep(1)
@blynk.handle_event('read v0')
def read_virtual_pin_handler(pin):
    print(pin)
while True:
    blynk.run()```
below is my terminal Log

    ___  __          __
   / _ )/ /_ _____  / /__
  / _  / / // / _ \/  '_/
 /____/_/\_, /_//_/_/\_\
        /___/ for Python v0.2.6

Connected to blynk server
Authenticating device...
[ERROR]: Auth stage failed. Status=4
Connection closed'
2

So i came to know that legacy servers used
http://blynk-cloud.com/ which is not longer used in V2 , but still with v2 server address blynk.cloud its not working

3

You’re using the wrong version of the Blynk Python library.

You should be using version 1.0.0 with Blynk IoT.
This is available here:

but not as a bundled package. You have to copy the files manually. You should also take a look at the Examples folder, as I believe the syntax has changed too.

Pete.

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4

Got it Pete, i will try and let you know :slight_smile:

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5

thanks, it worked like a charm <3

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