Blynk Invalid Auth Token

Dear community,

I have read a couple of posts about how to connect to blynk. Tried a couple of different solutions.
Including the CPP and Python libraries but … I need further support.


Platform: raspberry pi
CPP library v1.0.0 – connection to cloud
Ping works → no network problems!

My first lines of code are:
#define BLYNK_PRINT stdout
#define BLYNK_TEMPLATE_ID “my_prj_template”
#define BLYNK_DEVICE_NAME “my_prj_name”

Invalid auth Token.
Before you ask … Yes I double check that I am using the right Auth code.

My first goal is to achieve a connection.
Does someone have any ideas that could support. I am able to provide more info on request.

Note: Usually I would use the Python Library. Do we have any update about when will it be released?

Thanks in advance,

How are you managing to run the C++ library on a Pi?

Are you using the deprecated WiringPi library?


Hi Pete,

Thanks for your quick support. I managed to find out the error.
I was passing the Token through the script and it was being not properly parsed.

Changed it directly at the code and…
I have have now connection with the cpp library.

Question… Do you have plans to release the python?

Or … maybe if you want… I could also support the dev of the python…


You should read this topic…