New Products Flash Sale
Thread Tools
Old Mar 12, 2013, 01:49 AM
Enthlapy is offline
Find More Posts by Enthlapy
Team White Llama
Enthlapy's Avatar
Cool

SimonK Reversable ESC - Think 3D QuadCopter


Here are some modified SimonK's firmware for our flashable ESC's. Thanks Dave A for working them out


SimonK Reversible ESC Firmware (0 min 19 sec)





MultiWii3D Project started by: LittleMo

https://github.com/c---/MultiWii3D/



Please use at your own risk!
Last edited by Enthlapy; Mar 14, 2013 at 07:24 PM.
Sign up now
to remove ads between posts
Old Mar 12, 2013, 02:23 AM
deno6031 is offline
Find More Posts by deno6031
Registered User
deno6031's Avatar
Wow nice adding new possibilities for acro quads, would like to try it out, now I need props with bigger pitch angle, am I right?

Do I need to change anything on my multiwii sketch to fly upsidedown and 3d?
Old Mar 12, 2013, 03:18 AM
nicodh is offline
Find More Posts by nicodh
Registered User
yes you have
Old Mar 12, 2013, 06:11 AM
WhiteFox50 is offline
Find More Posts by WhiteFox50
Registered User
Reallllly..... I am very interested to see how this works. I've seen the videos from Warthox flying 3D with the prototype UltraESC's and that was amazing.
Old Mar 12, 2013, 07:45 AM
Veqtor is offline
Find More Posts by Veqtor
Registered User
Veqtor's Avatar
I'm very doubtful this will work, the normal ESC's can't perform regenerative braking so the motor will have to wind down slowly, the ultraESC guy seemed to not even promise that they will release the 3d firmware, even WITH this active braking, for this to be at all usable the motors need to be able to accelerate and deccelerate at almost instantly, something that is impossible with normal ESCs because:
* Noisy, dirty and low frequency pwm, gives poor acceleration (this is because of MCU that was never meant for precision BL control applications)
* Diode instead of active freewheeling (this not only makes regenerative braking impossible but also the efficiency of acceleration is significantly lower)

If this was so easy with just a FW hack, don't you think people would have done it ages ago?

Just look at the ultraesc accelerating and deccelerating:
Ultra ESC brakes (1 min 46 sec)


now tell if your simonk hack can do it? I also have simonk ESCs but plan to change as soon as these are available, the active freewheeling also recharges the battery when braking the speed so you get longer flight times in theory.
Last edited by Veqtor; Mar 12, 2013 at 07:52 AM.
Old Mar 12, 2013, 10:31 AM
Enthlapy is offline
Find More Posts by Enthlapy
Team White Llama
Enthlapy's Avatar
Veqtor,

You must be a puppet for Ultra ESC. Try it then lets talk BS.

The firware is here, people will report if its doable or not. BTW: Its already been done

Last edited by Enthlapy; Mar 12, 2013 at 11:07 AM.
Old Mar 12, 2013, 10:39 AM
NaterPin is offline
Find More Posts by NaterPin
Registered User
Quote:
Originally Posted by Enthlapy View Post
Veqtor,

You must be a puppet for Ultra ESC. Try it then lets talk BS.

The firware is here, people will report if its doable or not. BTW: Its already been done.
You beat me to it "not the Puppet part" but "the Its already been done"
Last edited by NaterPin; Mar 12, 2013 at 10:48 AM.
Old Mar 12, 2013, 10:41 AM
Enthlapy is offline
Find More Posts by Enthlapy
Team White Llama
Enthlapy's Avatar
Quote:
Originally Posted by deno6031 View Post
Wow nice adding new possibilities for acro quads, would like to try it out, now I need props with bigger pitch angle, am I right?

Do I need to change anything on my multiwii sketch to fly upsidedown and 3d?

You need to get up the thorttle so neutral is 1500. Negative is 1000-1500 positive is 1500-2000 ish.

But dont quote me on that, i havent done it yet. Ill try to get a better idea when i try it.
Last edited by Enthlapy; Mar 12, 2013 at 11:05 AM.
Old Mar 12, 2013, 12:06 PM
chanyote66 is offline
Find More Posts by chanyote66
Mobius Cables... I got em'
chanyote66's Avatar
why try to reverse the motor? just use variable pitch props and make their throw reversable... your stabilization is going to be all jacked if you dont reprogram the FC to understand "reverse" or inverted. a variable pitch prop would act the same regular or inverted and be much more efficient.
Old Mar 12, 2013, 12:14 PM
Granted is offline
Find More Posts by Granted
serial scratchbuilder
Granted's Avatar
Quote:
Originally Posted by chanyote66 View Post
why try to reverse the motor? just use variable pitch props and make their throw reversable... your stabilization is going to be all jacked if you dont reprogram the FC to understand "reverse" or inverted. a variable pitch prop would act the same regular or inverted and be much more efficient.
Let's see.
Build new, more complex and heavier quad, or flash firmware,adjust flight settings, and change props on quad I already own.

Seems like a no-brainer to me.
Old Mar 12, 2013, 03:16 PM
Veqtor is offline
Find More Posts by Veqtor
Registered User
Veqtor's Avatar
Quote:
Originally Posted by Enthlapy View Post
i havent done it yet. Ill try to get a better idea when i try it.
I thought you said it's already been done? Who has done it? Where is this video of someone using generic ESC's with simonK doing 3D? I'm not a tool, I wouldn't pay 35 for an ESC that I don't need
Old Mar 12, 2013, 03:29 PM
chanyote66 is offline
Find More Posts by chanyote66
Mobius Cables... I got em'
chanyote66's Avatar
Quote:
Originally Posted by Granted View Post
Let's see.
Build new, more complex and heavier quad, or flash firmware,adjust flight settings, and change props on quad I already own.

Seems like a no-brainer to me.
ya... in that case It may be worth it... Im more of an "all in" kind of guy... If Im building something to fly a specific way, I start from scratch... Modifying an older frame is much more economical though.
Old Mar 12, 2013, 08:59 PM
heli-yeah is offline
Find More Posts by heli-yeah
Flying Monkey
heli-yeah's Avatar
Quote:
Originally Posted by Enthlapy View Post
BTW: Its already been done
Is there any video available?

I already have SimonK flashed to the ESCs on my current Acro Quad, and it would be nice to not have to wait for Hardware to become available +$$, if an improved FW could be a simple solution!
Old Mar 12, 2013, 11:27 PM
hexa is offline
Find More Posts by hexa
Registered User
hexa's Avatar
can this reverse code be modified for bls gimbal control ?
Old Mar 13, 2013, 03:05 AM
Enthlapy is offline
Find More Posts by Enthlapy
Team White Llama
Enthlapy's Avatar
SimonK Reversible ESC Firmware (0 min 19 sec)



Waiting for weather to clear up to get something a bit more fancy.


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Discussion Hexacopter vs Quad copter vs 18 mph wind wordupmag Multirotor Electronics 14 Nov 18, 2013 02:43 AM
Hex copter and quad copter for trade packarman2000 Non R/C Items (FS/W) 1 Mar 04, 2013 04:02 PM
Sold 2 - ATG 600 Folding Frame Quad-copters SOLD traccer750 Aircraft - Electric - Multirotor (FS/W) 0 Jan 03, 2013 09:31 AM
Sold F-30A SimonK esc's and RCTimer SimonK esc's and programer hallstudio Aircraft - Electric - Multirotor (FS/W) 2 Oct 14, 2012 02:01 PM
Help! Quad-X MultiWii w/ SimonK ESCs brettwal Multirotor Talk 8 Jun 10, 2012 08:30 PM