xbee interfacing to 9DOFIMU

Wireless & IoT
1

Hi All,

I have the SF 9DOF IMU running the AHRS software available on diydrones. I need to down link the serial data from the IMU to a ground station (laptop), and was wondering if a simple connection using xbee’s will work. I am thinking one of the long range xbees on both ends with the xbee explorer usb on the ground to the laptop. I only need one way com from the airborne system to the ground. I am new to this so if this is a stupid question please excuse my ignorance. I am learning a lot about this as time goes on. Many thanks!

Kraig

2

In general, XBees use Asynchronous data with 1 start and 1 stop bit with data rates to 115kBaud (57.6kBaud works better) and 3.3V logic level.

If your processor data rate can meet this requirement then XBees should work.

3

Great! The IMU transmits it’s data at 57600 so that should work well. Now if someone could give me a hint as to how to interface the IMU with the xbee, I’ll be in business… I’m assuming that I could just hook it to the same connector that the FTDI usb breakout board attaches to. Thanks!!

Kraig

4

TX data to XBee Din and RX data to XBee Dout. Just be sure that the signals are 3.3V logic.

5

waltr:
TX data to XBee Din and RX data to XBee Dout. Just be sure that the signals are 3.3V logic.

Thanks waltr! I’ll give it a go and see hat happens.