DIY Head Tracker For A Tenner

{SAS}Stalker

{SAS}Stalker
brumster said:
Which model and firmware?
Click to expand...

Hi Brumster,

Its a pre-built EDTracker (Magnetometer) + Cable (EDTTRK002C). The firmware (i think) is 4.0.1 although I wont know until I get home. I know I have only flashed it once since getting it but the version dates listed on your website are all wrong so I don't know when they were released.
 

brumster

brumster
Hmmm, ok. Well, I wouldn't worry too much about it, on the 9150 the temperature reading is really for info only - being a mag version it doesn't really have to warm up, so monitoring the temperature isn't critical to it's use. It's odd that the temperature would stop working but the rest of the sensor remains unaffected, so I doubt it's a hardware issue. I'm not aware that any firmware addressed a temperature reading issue but try and update to the latest if it's not 4.0.3+... let me know how you get on ;)
 

Shamoth

Shamoth
I'm kinda bored of My old 6050 and i have weird urge to soldier something...
So Brumster as we talked earlier You were considering using GY-88 or GY-85 in future but from what I see how situation evolves it looks like 9150 is rock solid "fire and forget" solution but im tempted to 9250 just for unknown future...
Question is, how You see the situation/future?
Should I stick to 9150 since nothing more can be done in this matter no matter what chip will be used and 9150 is final solution or should i target 9250 since it will be updated less frequently than 9150 but its less noisy and some more responsiveness or less usb/cpu overhead can be achieved... or You're working on something new and need some feedback/testing ;)
 

brumster

brumster
We see far less people ordering 6050 units now, for obvious reasons.
On the 9150/9250 debate, there really is nothing in it. The 9250 is the newer chip from Invensense, and the 9150 will soon be EOL'd, but from a functional perspective on a DIY EDTracker they both do the same thing - one is no better than the other in real-world use. The only reason I built the 9250 firmware was because people requested it - mainly in the US where I think it's easier to get the 9250, at a better price.
So I would drive your decision on what is cheaper and easier to source.
Be aware the 9250 breakout boards I've seen are 10-pin rather than 8, and so encroach over the EDTracker PCB where the button goes. So if you do build one on our PCB, you'll have to drop the button (not a big deal; the software can do the recentre). If you're building it home-brew, this won't be a concern.
 

Shamoth

Shamoth
Then 9250, since its a bit cheaper in Poland than 9150 for some unknown reason ;)
Im going to build some small hybrid with 3 leds build in to test OT double input possibilities, maybe in time there will be way to get xyz movement like in OR :)
 
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brumster

brumster
I'd defer to Rob, but I think he said it was some sort of hybrid - exponential around the dead-ahead position, but then becomes linear as you point a certain amount off-centre. I don't find much perceptable difference myself, but then I'm normally an exponential user anyway.
 

{SAS}Stalker

{SAS}Stalker
brumster said:
Hmmm, ok. Well, I wouldn't worry too much about it, on the 9150 the temperature reading is really for info only - being a mag version it doesn't really have to warm up, so monitoring the temperature isn't critical to it's use. It's odd that the temperature would stop working but the rest of the sensor remains unaffected, so I doubt it's a hardware issue. I'm not aware that any firmware addressed a temperature reading issue but try and update to the latest if it's not 4.0.3+... let me know how you get on ;)
Click to expand...

It came back when I unplugged it and plugged it back in :p Gremlins!
 

Priminius

Priminius
Hopefully someone is familiar with this. Have an email into the developer, but wanted to see if someone here could help...


Got my EDTracker board and all my components in over the last couple days.
Used the instructional video and soldered everything up as described with no issues.
I added the arduino drives and my device was recognized in windows as Arduino Leonardo. I am using the 9150 version.
I opened the GUI software. connected to the tracker, and flashed the calib to the device. All the boxes were green except the Accel Z box which was red and set at zero. Problem is, in the software, the nice flowing lines for temp etc that I see in your video I am not getting. just some weird vertical lines across the temp and axis bars. Temp on top is green.
Don't know what this means, if anything, but the 9150 board ha a green light lit, Arduino board has has a green light lit near the USB connector and a flashing red light on the opposite side of the board. when i connect the tracker in the GUI, a second solid lit red light comes on opposite the flashing red.
I have gone through and verified my solder point (except the ones under the 9150) and all looks good. any advice?


Screenshot of the software:
http://i.imgur.com/BYg5J4J.jpg


Thoughts?
 

{SAS}Stalker

{SAS}Stalker
That image shows its not connected, I think the last chap who had a similar issue had the button on the wrong way round. Brumster is your man though.
 

Priminius

Priminius
I believe I read somewhere you can now just leave the button off and use a mapped key command for the recenter. Can anyone confirm? Thanks...
 

Fenster

Fenster
Polusk said:
I've rebuild another one:
other components, other layout (the first was Shadowcat's one and now I've tried the Bartybee's guide).
The only remaining component is the MPU-9150.

And I still have the same issue:
-Visible in "Devices and Printers", but axes are not moving
-COM port visible on EdTracker GUI
- success for installing the sketch
- but not able to connect on it for tracking

Is it an hardware problem on this piece?
Or a software issue?

I really don't know how to debug all this stuff. If you have any clue, or a least logs, it would help!

Thanks

edit: is the project still active? the last commit was 7 months ago https://github.com/pocketmoon/EDTracker2
Click to expand...

Where did you buy your parts?

I had some trouble with ones bought in Canada.. Needed different drivers
 
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Priminius

Priminius
All off ebay, using edtracker PCB.

- - - Updated - - -

I'm all good now! Desoldered the button and everything just worked so I'm leaving the button off and using an F key for centering. Thanks for the feedback fellas!
 
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brumster

brumster
Sorry, been a long weekend at Lavecon, but back now :)

Yes, prime candidate if the device just "sticks" after powering-on is that it thinks the button is held down - often because it's connected the wrong way ;) Sounds like you've sorted it now anyway....
 

Priminius

Priminius
brumster said:
Sorry, been a long weekend at Lavecon, but back now :)

Yes, prime candidate if the device just "sticks" after powering-on is that it thinks the button is held down - often because it's connected the wrong way ;) Sounds like you've sorted it now anyway....
Click to expand...

No worries brumster, you have to catch some time off at some point. What an awesome little device. Had it running through Opentrack on Star Citizen today and couldn't be happier. Will need to tweak some settings but that's half the fun. Can't wait to see where it goes from here. I put mine in a half tic tac box but may CAD up my own box version for 3d printing. Again, thanks, you fellas are stars! :)
 
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