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yosemitez's blog
Posted by yosemitez | Dec 07, 2014 @ 06:55 PM | 922 Views
After reading so much about the mini quad craze i decided to give it a try. Will be building a Backout Mini H Quad with NAZE32 Acro - EZUHF - Futaba 8FG. There are tons of videos and how to's on most every aspect of this so i am just making notes on parts of the build where i could not find info or had to really dig to get a answer. These are notes to self on how I got this setup working.

First wanted to update FW on the Naze and it seemed simple enough with some programs but then i saw a video where they do it from inside Baseflight(Chrome app version). I already had BF up and running so i go in and look for where it says to update the FW like i saw, cant find it anywhere? Reason why is that you have to have the board disconnected! for the FW update screen to be visible. I had BF set up to auto connect and that is why i couldnt find it. Once found, update of FW was easy.

set align_board_yaw = 90 to rotae board 90 degrees so usb port sticks out side

EZUHF 8 channel Lite, make sure latest FW 1.50 on this one, 8 channel, PPM Muxed. see images 2 and 3

Wire setup between Naze and EZUHF with 6 volt battery providing power to EZUHF. Image 4

EZUHF is now talking to Naze. Image 5

Reverse Throttle and Elevator(Pitch) channel in Futaba

Set mid point to 1520(Futaba) for Pitch, Roll, Yaw. Max at 1950 and min at 1050 in baseflight tabs *above and the 125 endpoints mentioned are what will allow full stick travel and the ability to acc trim while motors are not...Continue Reading
Posted by yosemitez | Nov 14, 2014 @ 01:06 PM | 1,901 Views
QAV400, 6,300' distance flight
Posted by yosemitez | Oct 14, 2014 @ 08:42 PM | 2,817 Views
GoPro Hero4 Black vs GoPro Hero3 Black

Just got the new GoPro Hero4 Black and the 4K to me looks much sharper, true colors and just plain crisp 3D looking. Now this could all be just me excitied over a new camera so I decided to do a side by side comparison.

I strapped both cameras to my QAV400 and did some filming while hovering around the yard. I shot stills and 2.7k 30fps. Then I tried 4K 30fps on the GoPro Hero4 Black and the GoPro Hero3 Black at 15 fps, on this I will do some frame grabs for comparison.

Still Image Comparison, these are unedited straight from the camera.
The GoPro Hero3 Black image looks sharper but that is because it is doing in camera sharpening and color correction. GoPro Hero4 Black image has protune(GP3 has no still image protune) so i have the protune on with sharpening on low, 400 iso and -5 exposure compensation (to not blow out highlights). I was having a real hard time getting true sky colors with the GP3, it was always washed out in the highlights and a wierd gaudy color. The GoPro Hero4 Black image looks much better as far as colors go and i am sure some sharpening in PS would help.

Photos 4 and 5 are still images zoomed in 200%. The GoPro Hero4 Black is not as sharp but the colors are much more accurate and the white wispy clouds have tons more detail.

2.7K Video Comparison- Frame Grabs
Here are frame grabs from some 2.7K video. The The GoPro Hero4 Black looks much better, sharper and again the colors are more true with sky not a...Continue Reading
Posted by yosemitez | Oct 03, 2014 @ 06:56 PM | 3,266 Views
I have now had the Eagle Tree Vector installed in my QAV400 since July 2014. I continue to be impressed with how it handles in full manual flight (i have never used loiter or 2d). This coupled with the customizable OSD makes for fun flying!

I had not flown my other QAV400 with a KK2.1 since getting the Vector so I decided to install a Vector in it and then add on a gimbal.
Photo 1- Pigtail PSU soldered to PDB

Photo 1A- On this build i decided to go with the Pigtail PSU as I could solder it right into the PDB and eliminate a lot of connectors. On my first build I have the XT60 PSU version and after using it a few times it became very evident that it would not stand up to constant use so I added a small pigtail. That added 2 more connectors for a total of 3 XT60's. This new version has just 1 XT60.

Photo 1B- XT60 PSU version on my first build showing all the connectors. Over 300 flights on this setup and still feels solid. This set up makes it easy to plug in and unplug the battery as you hold the XT60 against the frame,

Photo 2- Next was the power to the EZUH. I built a short JST connector wire and this is connected to the Vector 5v tap. You will also see in this photo the Receiver Connection Harness. Since I am using Serial PPM i removed all the extra wires including the red power wire.

Photo 3- shows the wiring and how i had to move the Vector forward to maintain the CG on the QAV400. Also notice how the Vid tx and cam connectors are...Continue Reading
Posted by yosemitez | Aug 22, 2014 @ 05:52 PM | 2,349 Views
Eagle Tree Vector - QAV400 - 1.2 mile run
Lee Vining Creek, 8/19/14
Elevation 9,500'
Eagle Tree Vector - QAV400 - 1.2 mile run (5 min 27 sec)

Posted by yosemitez | Jul 26, 2014 @ 04:38 PM | 3,484 Views
Eagle Tree Vector installed in a QAV400, Advanced Gain Settings

After thousands of flights with the trusty KK2 i am now trying the Vector in my QAV400. I only fly in full manual (3D vector speak).

As the KK2 the Vector is totally configurable in the field but is done through the OSD on the monitor. There are so many options that it is very overwhelming at first coming from the simple world of KK2.

The Vector is mounted a bit forward of it s recommended CoG so that I can get the battery far enough forward to maintain the QAV400 CoG, it seems to have no effect on the flight characteristics.

After 20 flights I am finally getting it dialed in through the Advanced Gain settings as to where it feels as crisp and responsive as the KK2.1.5

It seems very smooth and responds quick to stick commands. It does not have the jitters / oscillations when dropping down in a hover that is found on the KK2, very smooth dropping down flat

These are the current settings as of 7/26/14
Posted by yosemitez | Jul 19, 2014 @ 05:42 PM | 2,758 Views
Both controllers are in full manual, that is all I fly in.

First clips shows my trusty KK2.1.5 which has hundreds and hundreds of flights. It flies very smooth with little oscillations for the type of flying i do. it is a balance of control or oscillations.

2nd and 3rd clips show the Eagle Tree Vector FC i just installed. I tried just adjusting basic gains and i did get rid of oscillations but i did not have the locked in control feeling that i had with the KK2. So i enabled the advanced gains to tune through PID. You leave the "Controller Gains and Responsiveness" Pitch/Roll/Yaw at 100% and then tune through the PIDs.

This is just the first tuning with the PIDs on the Vector and it seems more locked in already.

Quadcopter Pid Tuning (1 min 33 sec)

Posted by yosemitez | Jul 10, 2014 @ 05:23 PM | 2,874 Views
Myself and several others were having problems setting up the Vector with the EZUHF to get RSSI and LINK readouts.

I upgraded the EZUHF rx and tx to 1.50. I updated the Vector to Fw 1.38 although it has a big WARNING about how it might be unstable.

In ezuhf tools i selected ppm muxed on the servo output and rssi on ppm slot 11 and link on ppm slot 12.

In vector config select rssi as channel 11 and link to channel 12, hit apply.

Now run vector rx wizard and if you have success you should see the rssi on receiver status as 100%. under serial ppm rssi should be channel 11, link quality ch 12. under serial ppm servo positions ch 11 will read 0% and ch 12 reads 80%. This is with rx and tx on.

here are screen shots of the vector config and osd with tx on and then off

ET support has been stellar and this is what they responded with and posted on forums:
Hey, wanted to post some troubleshooting steps for configuring and displaying RSSI/LQ via the PPM stream.

The first thing is to make sure you've installed our beta software 11.26 or later, found here.

The next step is to confirm you have correctly configured your Rx to output these readouts correctly, per your Rx instruction manual. You can test that this is correctly configured by looking at the channels corresponding to LQ and RSSI on the "RC Configuration" tab in the Vector software, in the "Serial PPM/S-BUS Channel Mapping" Section

For...Continue Reading
Posted by yosemitez | Jul 10, 2014 @ 05:01 PM | 2,762 Views
Vector, Futaba T8fg and ezuhf throttle failsafe setup

I was able to assign a sub-mode switch to enable RTH but could not figure out how to make Throttle Failsafe work with ezuhf and Futaba T8fg

Turns out it was very easy
Trim your throttle all the way down which on a Futaba T8fg reads +50 when you trim down T3. Now with TX and RX on hold the failsafe button on the ezuhf tx until you hear a series of beeps. This programs the rx what to go to when it looses bind. Next dont forget to put your throttle trim back to 0.

Now run the vector rx wizard and select throttle failsafe and you should have success.

Here are Us reading from the Vector Rc Config tab/receiver input monitor
throttle trim all the way down
throttle down 1002 us
throttle up 1950 us

o throttle trim
throttle down 1101 us
throttle up 1950 us
Posted by yosemitez | Jul 05, 2014 @ 05:27 PM | 3,129 Views
Found this over at fpvlab

The ezuhf will usually bind after the escs power up so you won't be able to enter ESC throttle calibration. This way of the throttle is at full when the ezuhf binds so you can calibrate.

1. Set throttle to max. saved settings to EzUHF, hitting 2secs on the EzUHF failsafe button, confirmation beeps.
2. Connected ESC to CH3 on the receiver
3. Listened for the ESC tunes/beeps.
4. Throttled to minimum and listened for the ESC confirmation tunes/beeps.
5. Same procedure on the other 3 ESC.
6. Afterwards set throttle stick and switches back accordingly and saved settings to EzUHF, hitting 2secs on the EzUHF failsafe button, confirmation beeps
7. Powered up, connect Naza to PC. Checked that failsafe acted accordingly when radio turned off (no props on ofcourse).
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Posted by yosemitez | Jun 26, 2014 @ 01:53 PM | 3,180 Views
Build State 6/26/15
For fast hard flying
QAV400, Kk2.1.5, EZUHF Lite with dipole, Afro ESC, 1.3 800mw, PT-1B TRANSMITTER, PR-100A RECEIVER
Posted by yosemitez | May 18, 2014 @ 12:26 AM | 15,982 Views
Trying to get my quad to fly like this!
Aerobatic Helicopter Bo-105 (3 min 7 sec)

Posted by yosemitez | Mar 31, 2014 @ 04:37 PM | 3,928 Views
Using KK2.1 V1.16S1 Updated Firmware
The firmware now supports the following receivers: -
Standard PPM
Combined PPM (CPPM)
DSM2 satellite (bind on power up holding down buttons 2&3)
DSMX satellite (bind on power up holding down buttons 3)

This reduces the wiring between the KK2.1 and the EZUHF down to 1 servo cable. Attach cable to CH 1 on the EZUHF and Channel 1, Aileron, on the Kk2.1

Hook up EZUHF RX to usb and go into Immersion tools and select Servo Mapping and change CH1 to "PPM Muxed". Upload settings to RX

In KK2.1 Menu select Mode Settings> Receiver> CPPM
Now power cycle the KK2.1

Go to Receiver Test in the Kk2.1 and the channels should be working.
Posted by yosemitez | Mar 04, 2014 @ 05:27 PM | 3,979 Views
Last update 5/18/14
These are always changing as my flying skills develop.

QAV400, 980kv, 4s, rctimer props
For fast aggressive flying, no rolls or flips

kk2.1.5 KK2V1++_AiO
link roll/pitch> NO
pitch 51/100/37/20
roll 57/100/37/20
rudder 55/20/51/10
ss 45/45/65/95
Gyro 500

Futaba 8fg, EZUHF
RX- EZUHF LITE with Dipole Antenna seems to work as good or better than the EZUHF with diversity
throttle curve 0/30/60/80/94
expo 45

VRX- Madmushroom and Crosshair, IBCRAZY, of course, on diversity
VTX- 800MW ReadyMade, IBCrazy 1.3GHz BluBeam Ultra Airscrew Antenna

Notice rubber band to hold VTX antenna for high speed flying. Back up rubber band on battery as I had a velcro strap fail.

...Continue Reading
Posted by yosemitez | Feb 21, 2014 @ 03:50 PM | 4,027 Views
QAV400 #qav400
FFBLG, excellent low cost gimbal that works very well on the QAV400. I did not use the vibration system that comes with the gimbal. Just mounted straight to frame and it shoots perfect vibe/jello free video. Some photos of the assembly.
ALEXMOS Brushless controller
Thread http://www.rcgroups.com/forums/showthread.php?t=2007874
Grinding holes, QAV400 _ KK2.1_FFBLG (1 min 33 sec)

...Continue Reading
Posted by yosemitez | Feb 18, 2014 @ 07:04 PM | 4,429 Views
Qav400 went down today and would have never found it without these:

it was out 3/4ths of a mile and nowhere near where it thought it would be.
the pr-100a led me right to it. 5th time ive used the system and has easily paid for its self!
Posted by yosemitez | Feb 10, 2014 @ 05:22 PM | 3,794 Views
wanted to mount a gimbal on my spare qav400 since getfpv has not released theirs yet. then i saw that FFBLG offered a adapter and mounting plates for the qav400

i used the alexmos board from my qav500 and the main part from a beholder lite gimbal i had made into a handheld gimbal.

i cut off 1/4" from the front of the qav400 so that the roll arm would clear the frame. i didnt use the vibration system that mike offers as the qav quads have amazing a vibration dampening system with the bobbins. to get a little bit more clearance on the roll arm i added a nut onto the bolts between the frame mount and motor mount. bolted the beholder gimbal to the ffblg motor mount

powered up the alexmos and it seems to work excellent with the stock settings from the qav500 gimbal!

here is the first test flights and it seems to be working well
QAV400, KK2.1, Beholder Lite Gimbal onto a FFBLG adapter (2 min 48 sec)