Modifying the Bluetooth Module Settings

Simple Bluetooth serial communications for your Arduino. Pair with your Mac, Linux, or Windows computer to send and receive messages using regular Serial.print() commands. [Product page]
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Jed Hodson
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Joined: Wed Apr 24, 2013 5:14 am
Location: New South Wales, Australia

Modifying the Bluetooth Module Settings

Post by Jed Hodson » Fri Jul 03, 2015 9:56 am

I have recently purchased the Freetronics Bluetooth Shield and I am trying to reprogram the HC-05 module. Could someone please tell me how to do this? I have tried shorting the key pin and managed to get the Status light flashing at 2 second intervals, but I don't know how to send commands to it. I have tried to follow this guide ... s-Using-A/ with no success.

Thanks in Advanced,
Jed Hodson

Freetronics Staff
Freetronics Staff
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Joined: Sun Jul 14, 2013 7:06 am
Location: Melbourne, Australia

Re: Modifying the Bluetooth Module Settings

Post by andrew » Mon Jul 06, 2015 12:25 am

Here's a link to the AT commands and more information: ... mmands.pdf

Give the following a try: ... mands.html
and don't forget to change the jumpers on the BT shield to 10 and 11 for RX and TX respectively.

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