Bluefruit LE Hookup

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rmoquin
 
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Joined: Wed Jun 04, 2014 10:22 am

Bluefruit LE Hookup

Post by rmoquin »

I wanted to have bluetooth le capability from a BBB, but I'm not completely sure how all the pins get hooked up. I'm wondering if since the Adafruit driver uses UART to communicate with an Arduino, if you can then use one of the UART connections on the BBB directly with the Bluefruit LE? If you can, how does the RDY pin come into play? Is the ACT pin still left disconnected?

I want to make sure whether it's possible to get it to work, if I'm barking up the right tree or if I need to go with a USB bluetooth solution? I'd hate to hog up the USB unless I have to, but that's what I need to find out.

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adafruit_support_mike
 
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Re: Bluefruit LE Hookup

Post by adafruit_support_mike »

The nRF8001 supplies a UART bluetooth connection, but it talks to the host microprocessor through the SPI bus.

To make the nRF8001 work with the BBB, you'll need a device tree overlay that enables SPI and code to communicate with the nRF8001 through that interface.

The tutorial for the BLE breakout has more information about the basic signals and connections:

https://learn.adafruit.com/getting-star ... rything-up

and the BBIO tutorial has information on getting the various protocol buses working:

https://learn.adafruit.com/setting-up-i ... bone-black

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