Replies to This Discussion

Permalink Reply by Gareth Rens on November 30, 2011 at 2:29pm

@ Martin: Anytime :) Always happy to help. Its what makes this whole drone thing fun :)

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Permalink Reply by Duran - SteadiDrone on December 1, 2011 at 4:57am

Martin, could you tell me what kin of current your octo board will handle ? I need something that can take a decent amount from 8 BIG motors.

 

?

Thanks.

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DistributorPermalink Reply by Dany Thivierge on December 1, 2011 at 8:53am

Guys the Hexa PDB that we sell from jDrones / Jani is ok to support octo but with the known limitation from APM... just like my updated product description says: 

http://www.canadadrones.com/product-p/jd-hexa-pdpcb1.htm

Power Distribution for Hexa, Octo and Y6 Copters

8 power outputs but only 6 signal outputs

NOTE that the APM 1.0 only support 6 ESC signal so if you want to control 8 ESC you will need hardware modification

Channel 1-4, 7, 8 are the only channels that can support fast pwm outputs. channels 5,6 can only output slow pwm signals

 

Dany -- www.canadadrones.com

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DistributorPermalink Reply by Martint BuildYourOwnDrone.co.uk on December 2, 2011 at 5:42pm

Hi Duran,

 

They are said to run 50 Amps from the packet, however you can add solder on the tracks to increase the capacity they will carry :)

 

Regards

 

Martin

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Permalink Reply by Christopher Cooper on November 30, 2011 at 3:05pm

What's the giant capacitor for?

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Permalink Reply by Gareth Rens on December 1, 2011 at 9:41am

@Dany: 1-4 are used for esc signals,

               5-6 for camera stabilization

               7-8 for more esc signals.

Then if you want to add 2 more motors (hex to oct)

You need to solder 2 wires directly to the IMU board as shown in the wiki.

 

All is moot now with the V2.0!!! W00t, just ordered one!

 

 

@Chris: Its a power capacitor to help filter DC voltage ripple (apparently) :)

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Permalink Reply by Tony H on July 2, 2012 at 3:00pm

What have people been doing to use the jDrones PDB on an octocopter?  Hooking two ESCs straight to the APM2?  I'm curious as to which ESCs are being used and if they have a BEC as well.

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DeveloperPermalink Reply by John Arne Birkeland on July 4, 2012 at 1:13am

I use this one, cheap and does the job. Power only, no servo connections. It has solder surfaces on both sides of the board, so for a heavy-lift octocopter I stacked and soldered together two boards, to make sure it could handle the current.

http://www.goodluckbuy.com/100a-multicopter-multi-quad-copter-power...

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Permalink Reply by surndliha on July 4, 2012 at 4:01am

I am also using this board (single one) on my 5.5kg octo fully loaded with tiger mt2814-10 770kv, 13x4.5 apc props, 40A hobbyking blueseries esc's and 2x5000mAh 30C 4S batteries and has worked just great.

More info and comparisons between pdb's over here - http://www.rcgroups.com/forums/showthread.php?t=1493738&page=3#...

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Permalink Reply by Tony H on July 8, 2012 at 6:07pm

Thanks for the info and link.  Are you hooking up every wire on all the ESCs up to the APM and paralleling the BECs?

I have the jdrones PDB and am looking at the Hobbywing FlyFun 40A ESC.  I'm debating between getting the 40A with built-in BEC or the 40A-opto.  Anyone have thoughts on that?

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