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Is Multiple device that used blynk library allowed?

This is related to my old post about joystick interface. I want to make my own mobile app in future which is able to use gamepad hybird with touchscreen.
I want to use HTTP Rest API at first however I just recognized there also write method in Blynk lib so I think I can use this instead of HTTP Rest API but I am afraid it will affected performance if I shared token to another device (as remote control interface and main device itself), since as free user we are limited by energy system.

It should always be one Auth token per device.

Your reference to Energy tells me you are using the Legacy version of Blynk. You should migrate to the IoT version before you go any further.

Pete.

I never know the IoT version before this, I just check it out. Even my password does not work. should I register again? sorry for out of topic.

Open blynk iot app and register.

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Create an IoT account. There is no connection between Legacy and IoT.

Pete.

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