Help: Bridge required or not for HC - 05 to Pro Mini

I can't understand how to connect my arduino pro mini,

To my HC-05 Bluetooth module

There is a guide to connect them given here :

And this is the given circuit:

I am trying to follow this guide but it is for 5V version and involves shorting the diode on the pro mini plus a divider circuit.

Apparently, there is an obvious difference in the circuit according to my components.

Please help me connect them correctly. I am new to this and stuck at this. :frowning:


The link you provide is for a 3.3V Pro Mini.

The schematic is a 5V Pro Mini.

Which one is correct?