Crius Aio Pro V2.0 and Crius Aio Pro V2.1

[geniola]

Difference between Crius Aio Aio Pro Pro V2.0 and Crius RCTIMER, then I find now that the new version Crius Aio Pro V2.1 there is a type for MegapirateNG and a type for Multiwii.Il problem is that I can not understand how I can identify externally or via software the difference between the two schede.Scusate but before you could not use both MultiWii that Megapirateng on the same card?
thanks

[Julia]

I have a hard time understanding your question. And I am not an expert. But from what I know, both are firmwares, so no, you can't run them on one board at the same time. But I have seen boards compatible with both (which means that you have to choose one).

[Leo]

Today I received my Crius AIO Pro V2.1.

Here both sides of the board:



Things that I have noticed that are different compared to version 2.0:

- The SMB capacitor in the upper right corner is larger
- The TX/RX LED's are arranged differently
- The pcb ground layer under the magnetometer has been removed (circle)
- ...

I'll be doing tests in particular concerning the MS5611 baro and I2C bus.

Leo

[brewski]

Today I received my Crius AIO Pro V2.1.

Here both sides of the board:



Things that I have noticed that are different compared to version 2.0:

- The SMB capacitor in the upper right corner is larger
- The TX/RX LED's are arranged differently
- The pcb ground layer under the magnetometer has been removed (circle)
- ...

I'll be doing tests in particular concerning the MS5611 baro and I2C bus.

Leo

Looks like the series Shottky reverse polarity diode & fuse are the same. This still means that inputting 5V from either ESC BEC or UBec will only give approx. 4.5V to AT 2560 when board under load. This is the minimum voltage when running at 16Mhz so suggest a 5.5V UBec to compensate & prevent brownouts/resets especially when running servos from board.
The J2 & J3 pads are still there so easy to cut traces to disable 5883 Mag & use Ext 12C Mag as I have done.
I really can't see any improvement over V2.

[Leo]

Thanks for the insight! I wasn't aware of the 5V via BEC problem! You probably saved me a lot of grief as i always run my boards via BEC.
Looking at the diode it reads "SLZ4". I can't find any data sheets online.

The modifications around the magnetometer should show improvements. I'll be using the on-board MAG as I have a shield protecting the FC from high current cables.

First tests using power from the USB port are promising. I2C bus seems to be clean.

[brewski]

Hi Leo,

I tried several different shield materials (copper plated circuit board, steel mesh, tinplate) all with varying success but none reduced more than 10 degrees. I was getting up to 30+ on full throttle as distribution board directly below & with cables twisted. Even moving FC up 20mm I wasn't satisfied as quad would yaw when using Mag.
With Ext Mag out front on CF square section I have zero interference on full throttle & with white foam on end (still havn't put a hi intensity led in it) gives great orientation together with my LED strip lights that are controlled by FC.
The series diode is a Shottky which they obviously copied from APM 2.5. APM were smart though & designed their inline power module/voltage/current monitor to output 5.3V. This compensates for the average drop of the Shottky diode which is typically 300mv (but can go higher at full current) but even at 500Mv will still be well within safe level for AtMega 2560 running at 16Mhz. I'm certain that many of the crashes that MW uses experience is due to FC brownout or reset.
APM doesn't have this issue to same extent unless builders cheap out & use ESC BEC. APM 2.5, 2.6, 2.7 is a locked down design with same basic design unlike MW with every supplier designing what they like!
At least with Crius their engineers build quality products & know how to lay out boards as per manufacturer chip design parameters. Crius AIOP is the benchmark for the APM/ 8 bit Megapirates branch because of the reliability of these boards which appear to be copied from APM2.5 but with exception of using IMU6000. Even onboard 8mb EEProm is there which unfortunately MW still cannot access for logging

[Leo]

Here is what I use as shield with success: http://www.multiwii.com/forum/viewtopic.php?f=18&t=5657#p57787
I'll let you know how it works with my new Crius board.

Thanks for the details concerning 5V voltage. They could have optimized it on the v2.1 board. Oh well...

[qwerty232]

Hello Leo,
where you bought aiop 2.1? I can find only 2.0 everywhere.

[Leo]

Hello Leo,
where you bought aiop 2.1? I can find only 2.0 everywhere.

I purchased mine here: http://www.ebay.com/itm/CRIUS-All-in-One-Pro-V2-1-MultiWii-MegaPirateNG-ArduPlaneNG-Flight-Controller-/251714163029?pt=LH_DefaultDomain_0&hash=item3a9b555155

I made sure that they are selling v2.1 by asking them before I made the purchase.

[Lecostarius]

At least with Crius their engineers build quality products & know how to lay out boards as per manufacturer chip design parameters. Crius AIOP is the benchmark for the APM/ 8 bit Megapirates branch because of the reliability of these boards which appear to be copied from APM2.5 but with exception of using IMU6000. Even onboard 8mb EEProm is there which unfortunately MW still cannot access for logging

Actually MW can access the Crius dataflash and log with it, see my corresponding thread for the code

You mention a 8mb EEPROM - that would be a change versus the Crius v2.0, which has a 2 MByte Flash, not 8 MB. Can you confirm there is a larger dataflash on the 2.1?

Thank you,

-- Leco