Changing baud rate of RN-42 Mate Silver Bluetooth Module

Wireless & IoT Bluetooth
1

Hi,

I am using the RN-42 Bluetooth Module to transmit the temperature of a room to the tera terminal of my PC. So far, I have only got it to work with a baud rate of 115200. I tried to change the baud rate to 9600, but nothing was displayed onto the tera terminal. I changed the baud rate on my PIC microcontroller to 9600 and used the scope to verify that the baud rate was actually 9600. Is there a way to make the Bluetooth Module transmit to the tera terminal with a baud rate of 9600?

2

Hello Todd!

Yes, it’s possible to change the baud rate on the Bluetooth Mate Silver.

What you’re going to want to do is check page 26 on the [datasheet for the SU command. You might also have a look at our [hookup guide as well to learn how to send commands to the RN-42.](https://learn.sparkfun.com/tutorials/using-the-bluesmirf)](https://cdn.sparkfun.com/datasheets/Wireless/Bluetooth/bluetooth_cr_UG-v1.0r.pdf)