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Hello Sir, I am Ain and I am doing my project which is using your apps as a references. I got the references and doing the same instructions that u given in your blogspot. but it doesn't works. Please help me sir. I want to know if my connection between bluetooth HC-05 to arduino UNO and also the connection to the breadboard is correct or not. If u got this message, please kindly reply. I am waiting for your response.Thanks you sir.R - pin 3CA - 5VG - pin 5B - pin 6Bluetooth HC - 05RX - pin 12TX - pin 11GND - gnd