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                    March 28, 2021, 10:21am
                   
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              hello. I wanted to write an application for connecting the phone with Arduino via Bluetooth. but I ran into a problem, the application can't get the mac address of the device to work with bluetooth
  
             
            
              
            
                
           
          
            
            
              I think you swapped the BeforePicking and AfterPicking events. Try exchanging them and let us know if it worked...
             
            
              
            
                
           
          
            
            
              Hi,. I have posted some tutorials about AppInventor and Arduino, maybe they can help you.
  
  
    I provide 15 tutorial links about App Inventor communicating with Arduino Uno. The tutorials start with a Bluetooth connection and they are developed ending with a monitor for 2 potentiometers, leds, buttons and small supervisory using procedure blocks, canvas, etc 
Tutorial 1/15: connecting with bluetooth 
            
 
Tutorial 2/15: Led ON / OFF 
            
 
Tutorial 3/15: Led ON / OFF - Changing Button Color 
            
 
Tutorial 4/15: Led ON/OFF - Using a single button on App Invento…
   
 
             
            
              
            
                
           
          
            
              
                system  
              
                  
                    April 4, 2021,  1:20pm
                   
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