"Thanks for posting the Eagle files. It's been a while since I've done any hardware design. I can see how the DI input going to the xBee gets switched between DIDO and DODI signals coming from JP2, but I don't understand how the DO output from the…"
"FWIW, the xBee Pro 60 milliwatt radios seem to have voltage level issue when used with the XtremeBee adaptors. I got mine to work after putting a 7.5K resistor in the tx and rx lines between the xBee adaptor and Oil Pan shield. I'm also going to…"
"I've got the same problem, and know of another user who has it too. Two 60mW xBee Pro's on XtremeBee adaptors. Baud ratea set at 57600, master mode selected on adaptor boards. Hooked up to FTDI's and 2 laptops and they communicate just fine. …"
"I'm using some modified code, so it does not matter what position the slider switch is in. I'm positive the issue is the board is not being released from the reset state. If the reset state is released, it will connect. It is just more often than…"
When the magnetomter is initialized, it is run thru a self test as desribed in the HMC5843 datasheet. This should output a specific set of numbers. The difference between these readings and their theoretical value (715 the way I set up…"
"Here's my code. I changed the formatting somewhat so I could read it easier. The matrix multiply routine and matrix storage method has been changed too. This was to accomodate matrix mulitplys in various dimensions. This also forced changes in the…"
"If the gyros and accels can handle the vibration, there is no reason it can't fly a heli with the proper control laws. As soon as I can my hands on the new shield, I'm going to put the unit on my Trex450 and see how the AHRS behaves."