"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…"

"The resistors are in series.   JI"

"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…"

"Be interested in what you find.  In the mean time, can I get a copy of the adaptor board schematic to see if I can work out a level shifting circuit to make what I have on hand work?"

"Here it is:   http://www.sparkfun.com/products/8742   JI"

"More info:   Changing TX and RX and setting slave mode on the APM side does not chnage anything, same behavior.   If I disconnect TX and RX from the APM xBee and send characters from the laptop, I will get activity on the DO amber…"

"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…"

"BTW - What was the fix applied to the rev H board? Replacing the capacitor with a 1K resistor as shown below? Something else? Still no good explanation for this behavior............."

"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…"

"My Oil Pan shield is Rev F 2.2"

"I've got a problem connecting my APM board to the configurator, both the Arducopter and Aeroquad versions. I think it's related to this reset problem. In a nutshell, when trying to connect to the configurator, the APM is never released…"

"Haven't come across that one, will check it out, thanks."

"Is there a brand or a part number on the kite fittings, I've found the angular parts but can't find the joiner part or the parts used for the motor mounts. Similarly, who makes/markets the 10 gram motors? Thanks for publishing this,…"

"Carrying the weight high leads to a stable hover, but creates issues in high speed forward flight."

"I did scale factor first. JI"

"Yes, I did, and it's not correct. I added a 10 msce delay between the i2c setup steps to allow the self test bias to settle out and it seems to have solved the problem. Looks like some magnetometers need more setup times than others. John"