tony1812 wrote: ↑
Fri Oct 05, 2018 11:04 pm
Also on the rx line of the JC-05. do I need a voltage divider? Some tutorial say yes but yet many don't and I don't recall I use it in the last time either.
Are you connecting an HC-05 to the Raspberry Pi? I think it depends on the carrier board. I seem to recall I got away without one, but I could be wrong, or lucky.
Better to have it and not need it. Or is it a 3v3 Arduino? Same applies.
Reason I ask is because you don't need an HC-05 on the Pi-side, you can use the built-in Bluetooth chip or a dongle, and rfcomm.
I've always used the factory settings on my HC-05s.