Bluetooth with HC-05 on Pocket Beagle

General Discussion
1

I’m trying to connect an HC-05 bluetooth module with a Pocket Beagle via UART4 and I’m able to do btattach, but when I do hciconfig I get no response. If I do hciattach, it attaches, but shows it is down and no MAC address.

2

Hi @RunSegura which HC-05 module are you using, how did you wire it up?

Regards,

3

I am using dsd Tech HC-05 bluetooth module. I don’t have any more details on it. I have VCC to P1.14, RX of HC05 to P2.07, and TX of HC05 to P2.05. I have gnd of HC05 connected to P1.22. I have validated that the UART4 is operational with another device for serial communication.

4

Looking on Amazon, most of these modules require 3.6V minimum: https://www.amazon.com/dp/B07VL725T8/

How are you doing the voltage translation?

Regards,

5

I’m powering off of P1.14 3.3V.

6

3.3V is less then 3.6V, can you share your purchased link for the HC-05, everything i’ve found so far needs a minimum of 3.6V to operate…

Regards,