SparkFun Forums 

Where electronics enthusiasts find answers.

Have questions about a SparkFun product or board? This is the place to be.
By Aggrav8d
#103142
Dear Sparkfun,

I taught myself C++ and I built my own hexapod robot. Still, I have yet to learn how to read wiring schematics. They don't make one bit of sense to me.
In the gallery for each product could you put an image that explains what each pin is for and maybe what it should connect to?

I've been trying to decypher your 9dof imu all evening and, thanks to the gaps in my knowledge, I am taking blind shots in the dark. I tried at first to connect the TX/RX to the RX/TX on the duemilanova, but I can't daisy-chain devices together to send the imu data to the PC through the USB serial.

Now I'm looking at the six pins in the middle of the board and for the life of me I have no idea which is the std output and which is the 3x. It wouldn't matter if I had female breakout pins... but I don't.

Thanks,
Dan
User avatar
By TS-Feedback
#103242
Hi,
Thanks for checking with us on this. We supply schematics with all of our products. If you are having trouble understanding schematics you may want to brush up on some of those skills. There are lots of internet tutorials about reading schematics such as these
http://www.learn-c.com/schemat.htm
http://www.best-microcontroller-project ... atics.html

As for connecting the 9dof to an Arduino, connecting TX/RX to RX/TX should be the correct connection. As for the six pin header (2x6) on the middle of the board, please DO NOT modify those pins. Those are programming pins, and need to be left available in case the unit needs to be reflashed with firmware.

The pass through of IMU data to the PC through the USB serial sounds like a question better suited for the Arduino forums. Have you looked around there before? If not I highly recommend you search there for possible posts that have already done what you are trying. I am confident that someone on there has already connected a 9dof to an Arduino. http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl
Thanks,
Tim