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Both HC-05 i bought worked for a short time. Then the transmit data line failed. The logic level became unstable. I used proper anti static protection. Was carefull with my connections. Ensured proper connections to my arduino. I purcase another HC-05 and it works fine.
Verified purchase: Yes | Condition: New
I have not use it yet but it looks good.
Verified purchase: Yes | Condition: New
To master mode, set key pinout high and bps to 38400 to communicate with it. The arduino and serial port need remain 9600bps.
Verified purchase: Yes | Condition: New
Item is is not HC-05. It can not work in master mode.
Verified purchase: Yes | Condition: New
Even is connected in a wrong voltage polartity, still working.
Verified purchase: Yes | Condition: Pre-owned