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I am making a car using arduino UNO, L298N driver and HC05 Bluetooth module. I have
completed all the circuit part but I am not able to upload the code to the board.
Answer ( 1 )
1. Check if you have selected the right port and board.
2. Reconnect the USB of arduino UNO if still not working check the USB cable in not malfunctioned. I hope this will help you.
3. Firstly, check whether you have connected your TX, RX pin of Bluetooth module with the arduino UNO. If you have connected the wires then you have to remove the TX, RX wires from arduino uno and then only code can be uploaded.