I'm sorry to report that FMA is no longer carrying Z sensors. They ran out of existing stock and because their basic Co-Pilot doesn't require them, they won't be making any more. They will continue to make XY sensors, which the Co-Pilot does use, and those should be back in stock in a few days.

We're currently exploring alternative sources for the Z sensors, but in the meantime, I suggest you buy them from Dean Goedde for $40 including cable (scroll to bottom for price list).[Update: Turns out that those may not be totally compatible (they're 3.3v and require special wiring to our 3.3v shield). Stay tuned....we're looking at other options.]
[Update 2: Dean writes and says that they are compatible: "My Z head is 100% fine at 5V. The analog output will be 1/2Vdd for a balanced horizon view, and skew away based on tilt. After all, myself, FMA, and Paparazzi are all using the same components and design. The AD8551 OpAmp is being used in all 3 of our Z heads and is fine to at least 5 volts.]

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Developer
Comment by Jordi Muñoz on May 28, 2009 at 9:33am
I guess Dean Z sensor is NOT compatible with us... Is he running at 3.3 volts?
Comment by evilmacaw on May 28, 2009 at 10:32am
well i paid them for one they dinged my card for it, they had better ship it :(
Comment by Gagarien on May 28, 2009 at 11:25am
You could use Ardu-shield 3.3v output with voltage deviders on TX & RX from deans Z sensor but that means more circuits ---- maybe a shield version 2 incl. volt deviders maybe for a SD card slot aswell?
Does this make sense or am I far off.

Moderator
Comment by Robert Krogh (hooks) on May 28, 2009 at 1:00pm
I resived my Z sencor 4 days ago.
Comment by Zahid Hasan on May 28, 2009 at 1:57pm
How does the Z-sensor works?
Comment by evilmacaw on May 28, 2009 at 2:35pm
Zahid Hasan,
it is a thermalpile like the FMA sensor but with two sensors , one looks at the ground and the other looks at the sky
Comment by Zahid Hasan on May 28, 2009 at 3:02pm
Thanks evilmacaw. Hmm, I will be getting my Z sensor soon. It will be interesting to see how it sends out signals to see if you can make your own.
Comment by Marty on May 28, 2009 at 5:03pm
That is a shame. Mine just arrived this week.
Comment by OlivierD. on May 28, 2009 at 7:07pm
I guess we could adapt these to work:
http://ppzuav.com/osc/catalog/product_info.php?products_id=66
Comment by Greg Fletcher on May 28, 2009 at 7:11pm
I ordered both sensors from FMA on 4/24 and it was to be shipped on the 15th and don't have them yet. Don't know if they've been shipped or what.

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