My laptop is win11 which cannot detect my hc-05 , however my phone and other win10 laptop (borrow from my friend) can detect it. I would like to ask how can I fix this problem in win 11?
Can you laptop detect any other Bluetooth devices?
I just read one web page... which said...
When Arduino is connected to the USB port of the computer, RX and TX pins on the HC-05 need to be disconnected. When RX and TX pins on HC-05 are connected, USB needs to be disconnected. This prevents HC-05 from interference with the USB.
Maybe try the tutorial... (no guarantees, it's an Instructable)
I did not see in the tutorial, but I believe the HC-05 has a 3v3 RX pin, so it needs a voltage divider on the HC-05 RX pin from the Arduino TX pin.
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