I tried to connect my desktop computer win 11 home with 3 different Bluetooth devices with Uno:
-JDY-33
-HC-05 new version
-HC-05 old version
I used 2 different bleutooth adapter: TP-Link UB500 and a cheap one Bluetooth V 4.0.
I can connect my cell phone to my computer using both adapters. But computer never find the device.
My cell phone Galaxy M31 always find the devices and my desktop.
I tried master mode, slave mode.... The computer never finds the devices.
How can I make it work?
What's your OS? windows 11?
win 11 home
I'm assuming the HC-05 is connected to the TX/RX lines on an Arduino?
If so, is the Arduino also connected to your computer at the same time? It could be that TX/RX and USB are interfering with each other. Make sure that the HC-05 and Arduino are powered correctly without using the USB plug on the Windows computer. If that doesn't do it, try checking baud rates, port settings, etc.
Hope this helps!
I think all this stuff about baud rates and Tx Rx connections is irrelevant and confusing. I submit your problem has nothing to do with Arduino and everything to do with proper installation of the Bluetooth dongle.
HC 05 is a classic Bluetooth device and I suggest you stick with the classic dongle. The BLE dongle may be able to see an HC-05 but may require something extra in order to work with it. If both dongles are BT4, then ditch the HC-05s and concentrate on the JDY.
I tried to powered from a different source and did not work.
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