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I am new to arduino programming . This is a gctrl code in the processing software. I am getting this error "the method showInputDialog(Component,Object,String,int,Icon,Object,Object) in the type jOptionPane is not applicable for arguments(gctrl,String,String,int,null,int,int)" even though i have seen the same format of the arguments in the tutorials.
How to solve this error
Is this code also works on HC-O5 Bluetooth module
Internet of Things Class