Probably is as you said.
Do you know as i could sent command from Blynk to arduino with Bluothoot protocol?
An other question, but Blynk don’t remember the storical data? Every time that i open the app i lose all hystorical data.
Historical data is stored on the Blynk server.
If you are using a direct connection between the device and the phone then the data isn’t going to the server.
Blynk is an IoT product, and to get the full functionality you need to connect the device to the internet via WiFi or Ethernet.
Pete.
I use bluetooth and i Think that it is a direct connection.
Next time i will try to use a wifi logger in order to use your fantastic help.