3D Robotics Comment by Chris Anderson on July 10, 2008 at 11:47pm

No, those are female to female. They include a male-to-male pin if you want to convert one or both sides to male.

No strain relief, although that's not a bad idea. I'm just not sure it's necessary.

Comment by Guy on July 28, 2008 at 1:51am

Im Sorry but im new here and i would like to order the board and the kit. how do i do that ?

3D Robotics Comment by Chris Anderson on July 28, 2008 at 7:41am

Guy,

There's no "kit" per se yet. That will be coming out in fall. For now if you want to experiment with this board, you can buy it and the individual components from all the links above. It's not recommended for people new to this, and probably won't work as is. I'd suggest you wait until we release the commercial version.

Comment by hoopty on August 6, 2008 at 6:34am

Chris,

The link to buy the SMT version of ArduPilot points to the thru hole design. I sure would like to get started on the SMT version. [=)'

3D Robotics Comment by Chris Anderson on August 6, 2008 at 7:51am

Hoopty,

Sorry about that--I've fixed the link above. We're still improving the boards, so think of this one as a test platform. The final version will be out in Sept (and available pre-soldered)

Comment by hoopty on August 6, 2008 at 2:34pm

Hi Chris,

Great work but I have some bad news... The ATMEGA168V-10AU-ND listed in the SMT project is a 10Mhz unit. All the picopower units as designated by the V in the part number are 10Mhz max. You will actually want a ATMEGA168-20AI-ND and it is a 20Mhz unit!
Sorry

-Bill

3D Robotics Comment by Chris Anderson on August 6, 2008 at 2:54pm

Bill,

Good catch! We'd actually been using the right chips, but I put in the wrong link. Now fixed...

Many thanks!

Comment by Phil Wilshire on August 6, 2008 at 6:04pm

Chris,
I have the right boards and I have ordered the rest of the parts now.
I will, hopefully, build one or two of the new boards as soon as all the bits get here.

Phil

Comment by hoopty on August 12, 2008 at 5:09am

You know I have been thinking about the resolution issue with 300d/s gyros and the resolution of the AVR168 chips. It seems to me if we think outside the box for a moment the problem can be easily solved. It would require 3 op amps per channel but it may be worth it.
The first op amd is a unity gain buffer. The other two op amps are configured to have 0 -3.3v for an input of 0-1.5v the second op amp would drive an ADC1 input directly. The third op amd
would be biased so that it did not produce output until it reveived an input of 1.5v. This coulkd be easily achieved with two diodes in series to the input of op amp 3 the voltage drop across each would be .7v and two would be 1.4v. A forward bias would be achieved at ~1.4v hence setting the bias. The third op amp would feed ADC2 and readings would only be taken from this if ADC1 achieved an overflow condition (full 1024 bits). This should give more resolution than ever needed. :)

Comment by hoopty on August 12, 2008 at 11:25am

Like this

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