Ultimate GPS Wiring

[mennochio]

Isn't the wiring shown in the picture at the link wrong? Between the Arduino and the Ultimate GPS it shows Rx --> Rx & Tx --> Tx. Shouldn't they actually be crossed over?

http://learn.adafruit.com/adafruit-ultimate-gps

Sorry if this has already been answered or I am misinterpreting the picture.

Thanx.

[adafruit_support_mike]

"Direct" wiring doesn't actually talk to the Arduino. It just lets the GPS module take over the Arduino's TX and RX pins.

The signals from the GPS module pass through to the Arduino's UART-to-USB bridge, which sends the message along to your computer. The RX/TX flop happens there.

If you want the GPS module to talk to the Ardiuno itself, yeah.. you need RX->TX both ways.

[mennochio]

Thanks for the clarification, Mike.

It turns out I am actually thinking of using the Ultimate GPS with a BeagleBone. Would the same thing apply there, or would I use a crossover connection in that case. i.e.:

GPS Tx --> UART5_RXD (P8-38)
GPS Rx --> UART5_TXD (P8-37)

Thanx.

[adafruit_support_mike]

The BBB is a complete Linux computer, so you'd use RX/TX connections there.