Nordic USB ANT Stick - Change the Baud Rate

Wireless & IoT
1

Hello,

I am using the code from https://github.com/agcooke/python-ant to read information from the Nordic USB Ant stick. The demo 07-rawmessage3_SparkFun.py works and gets information from the USB stick. I use Linux Ubuntu 11.10 and the original author Martin and I started a google group to handle requests on how to get this library working at https://groups.google.com/forum/?hl=en# … pen-source .

The default Baud rate for the Nordic USB ANT Stick is 4800 Baud when shipped from the factory. On the web page http://www.sparkfun.com/products/8840, it states “The nRF24AP1 breakout board can be configured to operate at different baud rates by closing two solder jumpers. The board is shipped with settings for 4800bps.”

I have been a few years a way from electronics and cannot see which two jumpers should be soldered and how to solder them to increase the baud rate. I would like to have the fasted baud rate that the USB stick can handle. Does anyone know how to modify the Nordic USB ANT Stick to get a faster baud rate?

Kind Regards,

Adrian Cooke

2

There should be a BR1 and a BR2 on the rear of the board - these can be soldered across which then will change the baud rate for the receiver.

I don’t know which ones need to be bridged for what, except leaving them unbridged gets you the 4800baud async.

The options are 4800baud, 19.2Kbaud, 38.4Kbaud and 50Kbaud. Guessing this is just a binary figure - so BR2 closed, BR1 open would give 19.2k, etc.