DIY Head Tracker For A Tenner

Whagwan

W
brumster said:
Does it list the COM port at all in the drop down? As an "Arduino Leonardo"? If you bring up the Device Manager and browse to Ports (COM & LPT) is it listed under there?

If not, I'd suggest the old USBDeview clean-up of unwanted COM ports/drivers and see if that fixes it... (in the user guide)
www.nirsoft.net/utils/usb_devices_view.html
Click to expand...

Device manager shows Arduino Leonardo on COM 8.

When I load the GUI only COM 1 appears in the drop down.
 

pocketmoon

P
Quick update - EDTrack2_9150 v4.0.1 is now available via the UI for folks with a MPU-9150 EDTracker.

This fixes an issue with orientation, yaw being incorrectly clamped and yaw bouncing with low yaw scaling.

Ad Astra Dudes!
 

PiLhEaD

PiLhEaD
Great - thanks for the update - I use EDTracker on low scaling and 'linear', and I'd seen a 'bit of bounce', so this is great news.

I'm sure this has been said before but EDTracker has increased the pleasure I get from ED hugely, so many thanks to all for all your hard work, and an excellent 'little' product - small in form, large in fun... :)
 

Veloxi

Veloxi
pocketmoon said:
Quick update - EDTrack2_9150 v4.0.1 is now available via the UI for folks with a MPU-9150 EDTracker.

This fixes an issue with orientation, yaw being incorrectly clamped and yaw bouncing with low yaw scaling.

Ad Astra Dudes!
Click to expand...

OMG another update. Yay! Time to recalibrate! Soon I'll be an expert at it! :) Thanks guys, can't wait to try it!
 

Lasse B.

Lasse B.
Another revelation:

Looks like my headphones do indeed have an influence on the magnetometer. I calibrated it away from the headphones using sketch 4.0.1 and it worked just flawlessly. But when I put it back onto the headphones I got overcorrection issues again. All is fine once more when removed from the headphones. It's always happening when looking down and right, no matter what the rotate mounting axis is set to. Just right is okay, just down is okay, but both in combination are pure evil.

Perhaps for cases such as these it could be made so the magnetometer is used for correction only when the view is within an adjustable deviation from the center of both axes, e.g. 2°, 5° or whatever the user sets it to.
 

BrewerGeorge

BrewerGeorge
Can anybody quickly link the info to the most recent set of instructions and sources for this project? The thread is 238 pages long and there appear to have been several revisions in both hardware and software since the beginning. I used to be an electronics tech - I can build this thing if somebody can point out the plans.

Thanks!
 

Antmax

Antmax
Lasse B. said:
Another revelation:

Looks like my headphones do indeed have an influence on the magnetometer. I calibrated it away from the headphones using sketch 4.0.1 and it worked just flawlessly. But when I put it back onto the headphones I got overcorrection issues again. All is fine once more when removed from the headphones. It's always happening when looking down and right, no matter what the rotate mounting axis is set to. Just right is okay, just down is okay, but both in combination are pure evil.

Perhaps for cases such as these it could be made so the magnetometer is used for correction only when the view is within an adjustable deviation from the center of both axes, e.g. 2°, 5° or whatever the user sets it to.
Click to expand...

I wonder if a wafer of plastic underneath might have enough thickness to isolate it from the phones better. You might only need an extra 3-4mm to reduce it.
 

pocketmoon

P
Lasse B. said:
Another revelation:

Looks like my headphones do indeed have an influence on the magnetometer. I calibrated it away from the headphones using sketch 4.0.1 and it worked just flawlessly. But when I put it back onto the headphones I got overcorrection issues again. All is fine once more when removed from the headphones. It's always happening when looking down and right, no matter what the rotate mounting axis is set to. Just right is okay, just down is okay, but both in combination are pure evil.
.
Click to expand...

You need to calibrate the tracker with it on the headphones otherwise mayhem may result :)
 

Lasse B.

Lasse B.
Antmax said:
I wonder if a wafer of plastic underneath might have enough thickness to isolate it from the phones better. You might only need an extra 3-4mm to reduce it.
Click to expand...
If it's about the distance from the headphones, I tried it with a folded cleaning rag that put like 2cm between the headphones and the tracker. Didn't work :(

Headphone is the Shure SRH 1840 btw.


PS:
@pocketmoon
Mayhem does result either way, the least though when I spin the tracker very close to where it would be strapped onto the headphones but without actually moving the headphones.
 
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Lasse B.

Lasse B.
It also sounds lovely and is pretty linear to my ears. All I had to do is bump the 8.4kHz frequency up by 6db as it had a gap there.

In regards to the tracker and the headphones, I've now had a calibration run that produced working results, but the spheres look rather egg shaped:

23fxqpU.png
 

brumster

brumster
We should have a contest, see who can get the blobs in the most interesting shape or pattern. I'm going to go for a mickey mouse head/ears silhouette.... :)
 
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