I am currently in the process of rebuilding my FR4 multirotor and replacing the Free Flight board with the CRIUS AIOP. I will be posting videos to my youtube channel as I progress forward.

1/27/2013:
FPV on FR4 failed. Diagnosed down to a faulty cable from the camera. Gives me an opportunity to rewire everything for the MinimOSD which is already configured but not tested. Plan to combine the MinimOSD with the Hobby King Super Simple OSD to display main LIPO and FPV LIPO values.

1/28/2013:
Have the MinimOSD connected and configured to the CRIUS AIOP. For now, I am leaving out the SSOSD until I get the MinimOSD up and running. Everything is wired up correctly but am having an issue with screen flicker. I believe it's a refresh rate issue due to selecting the incorrect character set. Will re-set the character set later on and add the findings to the MinimOSD setup video, which is yet to be posted.

1/29/2013:
Per Pavel from DIYDrones, I updated firmware on MinimOSD to latest pre-release. Flicker has been reduced but not eliminated. Tested SSOSD as a slave and it works. I just have to setup the MinimOSD layout so that the voltages are viewable. Awaiting replies from DIY Drones on flicker issue.

1/30/2013:
Flicker issue with MinimOSD has been fixed by changing the OSD's video mode to PAL. The OSD will flcker once placed back in NTSC mode. Re-flashed firmware to pre-release V1.2.5 and all is good. Being PAL, there are characters that go past the screen edges but their location can be moved using the configurator tool.

11/31/2013:
Again I played with the MinimOSD to try and get the flicker removed when the OSD is set to NTSC. With the help from Gabor at DIYDrones, I can finally say it's fixed. Since I am not using Panel 2 and have the switch disabled in the config tool, I removed the items from Panel 2 and arranged/deleted some of the items from Panel 1. Once I saved each panel to the OSD and retried it, it worked. I guess the removal of items from Panel 2 and the re-arranging of items from Panel 1, forced the OSD to accept NTSC mode.

2/2/2013:
Completed setting up the MinimOSD and SSOSD. I removed the unwanted values from the MinimOSD panel to make it as clean as possible. SSOSD supplies its values at the top left, center and right.

2/7/2013:
Well, I finally got the CRIUS AIOP mounted onto my FR4 frame with all it's associated toys. No matter how neat you try to be and how big the frame is, there is always gonna be a mess of wires

Had to manually calibrate the ESCs as even after 3 attempts to do the auto calibration through the CRIUS, one motor always failed to sync up. Manual calibration finally did the trick. Only one channel had to be reversed.

I will be starting up again with recording the videos of the build starting with the ESC calibration and then moving onto the other basic setups and then onto the advanced setup such as the changing the flight mode and PID tuning, etc. As I learn I will record..

I have an idea for a harness type thingie that can be used to suspend an X type quad in order to perform the PID tuning. Will have that tested later on.

Moe fun!!

2/9/2013:
I figured out how to program two switches on ny Turnigy 9X so that I can program the 6 flight modes. Have to perform some general setup and then I can start testing/setting up the PID values.

3/8/2013:
I setup the PID tuning on my FR4 in ACRO mode about 2 weeks ago and finally was able to make a good video showing how to do it. See video #16 below. Next I have to determine the tuning for YAW in ACRO mode and then onto settings for STAB/LOITER modes. Will post a short video with the latest PID settings within a few days.

3/30/3013:
Finally got to test out the ACRO mode PID settings. All went very smooth until about 4 minutes in when the FR4 decided to flip forward on me. Broke 2 props and one motor mount. The flip could have been caused by a previously cracked mount that I did not notice or the PID settings. See video #17 below. Abriosi suggested I lower my Rate_I, which I did from 0.0100 to 0.0050 and I changed the mount as well. I then tested the FR4 again and it flew perfect for the remaining life on the battery, about 5 minutes, considering I did not balance any of the new props and it was windy outside. I plan on performing one more full test for the ACRO PID settings to make sure and then start adjusting the STAB settings.

04/16/2013:
Tested the final PID settings for ACRO mode and had a beautiful 9 minute flight in light wind over the weekend. No flips so the change in the rate_I helped. I also swapped out the FR4 motor mounts from a spider frame to a set of aluminum mounts I purchased on ebay from a seller named dben1015. Great mounts! Video #18 of the flight is below.

Video #1:

CRIUS AIOP V1.1 Project Part 1 - Introduction (5 min 31 sec)

Video #2:

CRIUS AIOP V1.1 Project Part 2 - Software (18 min 58 sec)

Video #3:

CRIUS AIOP V1.1 Project Part 3 - Firmware (14 min 4 sec)

Video #4:

CRIUS AIOP V1.1 Project Part 4 - Accessories (3 min 5 sec)

Video #5:

CRIUS AIOP V1.1 Project Part 5 - Programming Adapter and Cables (26 min 58 sec)

Video #6:

CRIUS AIOP V1.1 Project Part 6 - External Power Connector (3 min 58 sec)

Video #7:

Part 7 - Blue Tooth (17 min 3 sec)

Video #8:

CRIUS AIOP V1.1 Project Part 8 - MinimOSD (28 min 16 sec)

Video #9:

CRIUS AIOP V1.1 Project Part 9 - MinimOSD and SSOSD (7 min 15 sec)

Video #10:

CRIUS AIOP V1.1 Project Part 10 - Ublox CN6-02 GPS (8 min 22 sec)

Video #11:

CRIUS AIOP V1.1 Project Part 11 - LC Filters (12 min 28 sec)

Video #12:

CRIUS AIOP V1.1 Project Part 12 - Frame and RX Wiring (11 min 48 sec)

Video #13:

CRIUS AIOP V1.1 Project Part 13 - RC Calibration (7 min 36 sec)

Video #14:

CRIUS AIOP V1.1 Project Part 14 - IMU Calibration (7 min 52 sec)

Video #15:

CRIUS AIOP V1.1 Project Part 15 - Flight Modes (31 min 50 sec)

Video #16:

CRIUS AIOP V1.1 Project Part 16 - PID Tuning For ACRO Mode (27 min 54 sec)

Video #17:

CRIUS AIOP V1.1 Project Part 17 - PID Tuning For ACRO Mode Test Flight (5 min 20 sec)

Video #18:

CRIUS AIOP V1.1 Project Part 18 - Final PID Tuning For ACRO Mode Test Flight (8 min 38 sec)

Hello my friend can you help me with my Crius AIO V1.1 my setup is F450 all i want is to have fun flying flips and acrobatic on my Xquad. im running on a stock Multiwii V2.1. i would like to upgrade on Megapirate NG but some suggest to stay multiwii if i want to fly acro. my TX is FS-TH9X running also on stock firmware im planning to flash it with ER9X as soon as the USB asp arrive. what can you advice for a beginner like me? what are the advantages and disadvantages on both Megapirate NG and Multiwii?

Thanks in advance