GT3B Hack Question and Answer Thread

[losikid]

Originally Posted by cartronicshn

so my gt3b with 4.2 and the one on 6.1 should be around 10ms

No, after some tests on the o-scope it was discovered that the 4.1 averaged about 40ms latency...so it was optimized and got it down to like a 25ms average...and afew more tweaks were made between 4.2 and 6.1 to drop another ms or two

[cartronicshn]

so about as fast as stock? which was 20ms right?

[losikid]

I haven't seen any tests on sock adios....but i'd assume slightly faster as i doubt the flysky engineers would have made a firmware that is extremely efficient in getting info to the module as soon as possible. Right now, the latency can't get any faster because the module is a 20ms module. With the new frsky 11ish ms is possible on the latency

[Charlie-III]

Originally Posted by LosiKid

I haven't seen any tests on sock adios....but I'd assume slightly faster as I doubt the FlySky engineers would have made a firmware that is extremely efficient in getting info to the module as soon as possible. Right now, the latency can't get any faster because the module is a 20ms module. With the new frsky 11ish ms is possible on the latency

OK (turn on sarcasm....) what is "sock adios"?? Are you going barefoot?? (yes, I know you meant "stock radios"). Frikkin "auto spell check....."

For crawling, I really don't see latency as an issue. On a "go fast" I can a potential issue.

I have yet to upgrade my firmware, so I can't comment yet.

[losikid]

Originally Posted by Charlie-III

OK (turn on sarcasm....) what is "sock adios"?? Are you going barefoot?? (yes, I know you meant "stock radios"). Frikkin "auto spell check....."

For crawling, I really don't see latency as an issue. On a "go fast" I can a potential issue.

I have yet to upgrade my firmware, so I can't comment yet.

Auto correct

I guess i should proof read more often

[Charlie-III]

Originally Posted by LosiKid

Auto correct

I guess I should proof read more often

No problem with me......just saying.

Thanks for all the help in this thread. Quite a few of us trying to help fill in the gaps.

"Smooth sailing on the move".....

[zmaxroad]

humm..... i´ve been reading a lot of pages but (maybi missed it) i've only found someone with se same issue i have, and no resolution ....

i have the 2 esc template setup, but the dig dont stop the motors ... ch3. to the left and back wheels turn slowly ch3. to the rigth and front weels turn slowly
if i throtle up both motors turn foward ....

any one to help me ? thanks.

[losikid]

Calibrate the radio, calibrate your esc's

[zmaxroad]

have done esc / radio calibration several times ... always the same result ... instead of "full locked axle dig" i have a "slow speed axle dig" :(

[Charlie-III]

Originally Posted by zmaxroad

have done ESC / radio calibration several times ... always the same result ... instead of "full locked axle dig" I have a "slow speed axle dig" :(

Hmmm....I have a hacked GT3B, dual Sidewinder Micros and used the supplied template with no issues.
I did change the "20" for proportional steps to "5" since it made more sense to me.

When you calibrated the ESC's, were the EPA's set to 100% and the trims (and possibly subtrims) were set to "0"??

What version GT3B software are you running? I'm running an older one.

[losikid]

Originally Posted by zmaxroad

have done esc / radio calibration several times ... always the same result ... instead of "full locked axle dig" i have a "slow speed axle dig" :(

This issue is caused by a uncalibrated radio. So calibrate the radio again, especially the throttle channel.

There is a calibration how-to in post #2 of this thread

[losikid]

Spent some time tonight on these....still have quite abit more todo. Once finished they'll turn into a small 3x5 booklet

http://www.overkillrc.com/GT3X-Firmw...lp%20cards.pdf

[cartronicshn]

Austin, thanks for all the support you provide for these radios.

[mudboggin3]

Got my GT3C finally, turned it on to make sure it worked. installed hack kit, soldering with off without a hitch. put it back together. Now it won't turn on. rechecked to make sure all the wires were tight. still nothing. do you think i fried the controller?

I charged it too, still nothing. thinking i should have just tried my luck with getting one from losikid.

[Charlie-III]

Originally Posted by losikid

Spent some time tonight on these....still have quite abit more todo. Once finished they'll turn into a small 3x5 booklet

http://www.overkillrc.com/GT3X-Firmw...lp%20cards.pdf

Does the new firmware allow a "return to previous" when "dig" is locked?? I like on the "mom" dig that I go back to 5% propo when I return to 4WD. In "locked dig" it's not an option.

Originally Posted by cartronicshn

Austin, thanks for all the support you provide for these radios.

+1.

Originally Posted by mudboggin3

Got my GT3C finally, turned it on to make sure it worked. installed hack kit, soldering with off without a hitch. put it back together. Now it won't turn on. rechecked to make sure all the wires were tight. still nothing. do you think i fried the controller?

I would double check you didn't bridge a pin on the hack header, then make sure the connection from the wheel (& power button) are good.
Is your wheel connection (to the main TX body) wires or the spring pins?

[mudboggin3]

my is wires, no pins. the solder joints look good, no bridging from what i can see. maybe i should desolder it make sure.

[mudboggin3]

Okay took the 90 degree header out, broke it in the process though. now the radio turns on. so new question, anyone know where i can buy a new header for it.

[Charlie-III]

Originally Posted by mudboggin3

Okay took the 90 degree header out, broke it in the process though. now the radio turns on. so new question, anyone know where i can buy a new header for it.

Either LosiKid/OverkillRC or Digikey.

[losikid]

Originally Posted by Charlie-III

Does the new firmware allow a "return to previous" when "dig" is locked?? I like on the "mom" dig that I go back to 5% propo when I return to 4WD. In "locked dig" it's not an option.

Yea, i'll explain the rest of the menu key mapping menu options on another card/page.

[losikid]

Originally Posted by mudboggin3

Okay took the 90 degree header out, broke it in the process though. now the radio turns on. so new question, anyone know where i can buy a new header for it.

Your issue is strange...

I'll send you a new gt3c header next week, send me an email sometime after monday...make sure and send the email to losikid@overkillrc.com