hence the question... whats the smallest FC that supports true octo flight. best i've seen have 6 sets of pins... not 8
hence the question... whats the smallest FC that supports true octo flight. best i've seen have 6 sets of pins... not 8
well i think you would have to go with something like the CC3d atom.. but the issue comes with brushless motors.. so you are stuck with what has been built with brushed motors in mind. so until super small burshless mmotors hit the market.. you are stuck with 4 motors. and i think the CC3d atom is plenty small for that.. but you did say a proto x? the atom would be to big for that id think tho.. but if you talking nano qx the cc3d atom would work i bet.
chris.
Mr. Cleanflight himself is currently working on his own board in the same size as the 'standard' we're seeing with the other acro units available, and it is supposed to have the provisions for what you're looking for . Just keep your ears open and we'll see how long it takes to become a production unit.
Brushed motors are much easier to drive than brushless, the ESC's for them are pretty easy to make, it's basically just a mosfet and some resistors.
AlienWii has a board in development for an octo but who knows when it will be ready: http://alienwii.com/alienwii-brushed-stm32-octo-fc/
Afromini and CC3D Atom both only support 6 outputs (I know the afromini only supports 6, I'm 90% sure the Atom only supports 6)
So right now your best bed would be something like a nanowii or even an acro Naze32. Then making your own board for the motor drivers. It's a pretty simple circuit and oshpark could crank out a couple boards cheap. Heck you could design the frame as the board and get them cut...but the price for the board goes up as it gets bigger.
I'd suggest reading through woodsturning's thread about his frames on RCGroups: http://www.rcgroups.com/forums/showthread.php?t=2136987 And the Afromini thread on RCGroups http://www.rcgroups.com/forums/showthread.php?t=2163400 I'm pretty sure there was an octo or two in woodsturning's thread and the Afromini thread has some discussions and sample circuits for motor drivers.
Brushed motors are much easier to drive than brushless, the ESC's for them are pretty easy to make, it's basically just a mosfet and some resistors.
AlienWii has a board in development for an octo but who knows when it will be ready: http://alienwii.com/alienwii-brushed-stm32-octo-fc/
Afromini and CC3D Atom both only support 6 outputs (I know the afromini only supports 6, I'm 90% sure the Atom only supports 6)
So right now your best bed would be something like a nanowii or even an acro Naze32. Then making your own board for the motor drivers. It's a pretty simple circuit and oshpark could crank out a couple boards cheap. Heck you could design the frame as the board and get them cut...but the price for the board goes up as it gets bigger.
I'd suggest reading through woodsturning's thread about his frames on RCGroups: http://www.rcgroups.com/forums/showthread.php?t=2136987 And the Afromini thread on RCGroups http://www.rcgroups.com/forums/showthread.php?t=2163400 I'm pretty sure there was an octo or two in woodsturning's thread and the Afromini thread has some discussions and sample circuits for motor drivers.
11:23:09 PM peabody124 in could be diminishing returns. physical latency from blades w/o having a control loop in the ESC is probably still capped in the 10-20+ms range. taking control loop down another 0.5 ms might not make tangible differences, but it would be fun to try and doesn’t cost any logic on the FC side
11:23:34 PM peabody124 plus then you can easily play music while flying by tweaking the PWM output period
11:23:45 PM peabody124 FLYING A-TEAM THEME FTW
11:24:33 PM Simon-- yes!
11:24:42 PM Simon-- that would solve the flash space problem
11:24:48 PM Simon-- plus you could then have 4ch playback
11:25:11 PM peabody124 oh man. so many chiptunes
11:25:27 PM peabody124 solve the flash space problem = create it caues not enough on board music
11:25:30 PM Simon-- somebody is going to make a 5.1 copter
11:25:36 PM peabody124 we can stream music over telemetry even
11:25:41 PM Simon-- haha
11:25:44 PM peabody124 starts designing taulink with audio in
11:25:48 PM sfabris lol
11:25:53 PM acceleroto streamed chiptunes would rule.
11:26:01 PM sfabris Killer feature...
11:26:08 PM peabody124 oh crapola. i can even do that on brushed sparky already
11:26:15 PM acceleroto haha
11:26:16 PM acceleroto DO IT
11:26:22 PM acceleroto Think of the press
11:26:23 PM peabody124 in that case only 2 timer banks so just stereo music
11:26:27 PM peabody124 good enough though
11:26:30 PM sfabris lullaby for kids directly from quadcopter
11:26:37 PM peabody124 i’m going to bed before i think this is a finish-before-morning project
One question.. where are you getting all of your info?