Trouble connecting HC05 with PC

Whenever I power on the HC05, it is visible to my PC and connects then says 'not connected' after about 2 seconds. How do I get it to stay connected?

Thread about a similar problem here
https://forum.arduino.cc/t/hc05-disconnecting-and-not-entering-at-mode/1344975/1

What version of Windows is on the PC?
Does it have a BT dongle or is built in?
What procedure did you follow pair and connect the HC05 and the PC?
Did you create the BT Port?

Edition Windows 11 Home
Version 23H2
Installed on ‎2/‎1/‎2023
OS build 22631.4751
Experience Windows Feature Experience Pack 1000.22700.1055.0

Bluetooth is built in

I tried pairing VCC->5V, GRD->GRD, TX->RX, RX->TX, but i also tried the method with the 1k and 2k resistors. I've also tried putting in AT and have tried resetting and still no luck.

No I did not create the BT port and do not actually know what that means.

I appreciate your help!

Please read the linked thread. Pay special attention to post #9.

1 Like

Oh sorry, i am new to this forum and did not see the link at first.. that was a success thanks so much cattledog!!

This worked once, but now i cannot get it to work again :frowning:

got it!

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