Is there a bluetooth module for the Arduino, which you can disable the password?

Good time of day!
Developing a project on Arduino with bt module. In my project it is necessary to make so that Android automatically connected to the bt module, but encountered this problem: when the connection requires a pin code.
I have learned that you cannot programmatically insert it automatically. Then there is only one way to find the module without a password.
I have reviewed hc-05(08), hm-10(11) and which functions pairing without a password. If you know how to bypass the password or know a good module that can be powered from 2.7 V and does not require a password, please write.
June 27th 19 at 15:23
1 answer
June 27th 19 at 15:25
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