I have tried multiple time but the same error still occurs even though my mobile application is connected to the Bluetooth at the Arduino Uno. Below is the picture of the error occurred, as stated, the Bluetooth is already connected
FK.aia (4.4 KB)
You are trying to send data before BlueTooth Client1 is Connected.
Instead of
try
P.S. These blocks can be dragged directly into your Blocks Editor workspace.
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