Good news: APM 2 preorders have reopened. You can now choose it with the onboard GPS or without, so can use an external GPS or any other supported GPS module (the Ublox GS406/407 can be used with this adapter, and other modules can be used in NMEA mode). 

All the necessary components for this batch of APM 2s will be coming in by the end of March, so pre-orders placed to today will be shipping in 4-6 weeks. After this pre-order period we will be in full APM 2 production, so the product should be constantly in stock by the middle of April.  At that point, we'll probably also offer versions with external magnetometers, and with an option for different connector pins, including right-angle pins.

We also now offer a version with no pins pre-soldered at all, for those who want to configure it to taste themselves. 

You can always follow the 3D Robotics Twitter feed for more regular updates.

On the code front, the current ArduCopter and ArduPlane supports APM 2, but has not yet been optimized for its sensors. Optimized code will be out in the next couple weeks, and further enhancements will be coming in the months to come. There's a lot of power in APM 2's MPU-6000 sensors, and you'll find that each software update taps it more. 

The first code enhancement, coming in the next week or two, will address the "lean" issue that some people are experiencing on multicopters. This is due to vibration. With the current code, the APM 2 board is more susceptible to this for two reasons: first, because it's a lighter board than APM 1 and as a result has less mechanical damping even when mounted on vibration-insulation, and second because we have not yet implemented software filtering of accelerometer noise.

The reason for that second issue is that in the current code, most software filtering is done in the ADC library. But because  APM 2 uses digital sensors, unlike the analog ones on APM 1 (which go through an ADC), it doesn't use the ADC library. This week we're going to move the filtering to the main ArduCopter code, which is shared by both APM 1 and APM 2, and we'll be able to optimize the settings for APM 2. This should resolve most of the "leaning" issues with a simple software update, which should be out by mid-March. 

There are a bunch of other improvements we're doing to improve filtering, including new test processes and easier ways to adjust the filters, both for the dev team and end-users. We're also preparing to use the MPU-6000's internal DMP processor, as an option to replace the software DCM sensor fusion algorithm we now use, but are still working with Invensense on a legal path to distribute the source code, in keeping with our commitment to open source. Look for that update to be out in a few months. 

Views: 6612

Comment by Dez Socks on February 29, 2012 at 7:27pm

@ Yusuf 

Nice thinking,good idea,But maybe buy the full board and de-solder the six pins supporting the shield.Rather than trying to solder all those pins which i think would be a nightmare.Downside is 12 wires to the shield after removal. 

Comment by Ismail Akcoral on March 1, 2012 at 6:47am

What is the roadmap for ARM versions? when will we see first examples

Comment by TFS Aeronautical Robotics Club on March 9, 2012 at 8:14pm

Is there a still a baro sensor on the APM2? I noticed that in the old pre-order there was that option; however, it no longer appears to be available.

Comment by Alonso Rodriguez on March 9, 2012 at 9:41pm

I was wondering what ARM the team is thinking about using.

Comment by Jason Willis on April 10, 2012 at 6:46am

I've looked at the Twitter feed but don't see any updates on the soldered APM 2.0, does anyone know when these will start shipping?


3D Robotics
Comment by Chris Anderson on April 10, 2012 at 7:15am

Jason: they're shipping this week.

Comment by Jason Willis on April 10, 2012 at 7:21am

Great! Thanks Chris!

Comment by Ismail Akcoral on April 17, 2012 at 10:17pm

still waiting for my order #20346 to be shipped which was ordered on 03/08/2012. here had been said pre-orders to be completed mid of April. according to twitter feedback 30 pcs/day are shipped until now.

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