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Old Apr 02, 2011, 09:33 AM
kinderkram is offline
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Quote:
Originally Posted by Goofy23 View Post
A BMA 020 is selled by Kinderkram for very cheap.
Nah! The next batch of ELV BMA020 bobs will be back in 10 weeks according to the ELV shop:
http://www.elv.de/3-Achsen-Beschleun.../detail2_28515

And I don't take pre-orders on items that I don't know when I'll get them...
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Old Apr 03, 2011, 04:21 PM
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Thanks Kinderkram, just wanted to mention it for completenes.
Old Apr 03, 2011, 05:13 PM
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Probably a dumb question but I want to be sure I understand this right... the flyduino can control a hex and even okto setup without requiring a PPM sum receiver unlike the pro mini?
Old Apr 03, 2011, 06:44 PM
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yes at least a hexa is possible atm without ppm reciever, i know ppm is nice, but i also use a hitec which is a nice RC but have no PPM Reciever.
With the Flyduino its possible.
We will may have a octo confg in the future (which is also possible without PPM and also driving Servos), alex said is basicaly no problem, but there will be some work involved for him.
Old Apr 04, 2011, 01:53 PM
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does somebody know where to connect the ppm sum receiver?

it doesnt work on the throttle pin [2] like with the pro mini.
a normal receiver works.
Old Apr 04, 2011, 01:59 PM
kinderkram is offline
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Quote:
Originally Posted by warthox View Post
does somebody know where to connect the ppm sum receiver?

it doesnt work on the throttle pin [2] like with the pro mini.
a normal receiver works.
Then why not use a "normal" Rx? It's a Mega, ya know?
Old Apr 04, 2011, 02:04 PM
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Originally Posted by kinderkram View Post
Then why not use a "normal" Rx? It's a Mega, ya know?
i know, but i wanna use a ppm sum receiver one wire, 8 channels....
and i have only a normal 4channel receiver left. thats not enough.
Old Apr 04, 2011, 02:11 PM
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Quote:
Originally Posted by warthox View Post
i know, but i wanna use a ppm sum receiver one wire, 8 channels....
and i have only a normal 4channel receiver left. thats not enough.
More than 4 ch? Don't tell me you wanna fly with auto levelling, altitude hold and stuff!

Nah, seriously: if you choose the Mega in the code the pinout changes completely. Dunno if it's easy to tailor the Mega code for PPM SUM.

Is Alex still around?
Old Apr 04, 2011, 02:56 PM
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Quote:
Originally Posted by warthox View Post
does somebody know where to connect the ppm sum receiver?

it doesnt work on the throttle pin [2] like with the pro mini.
a normal receiver works.
in MEGA Boards PPM_SUM is connected to PIN 19 = RX1

I'm not sure if this pin is available in Flyduino boards

I think Alex can change code to use analog 8 instead.
Last edited by mgros; Apr 04, 2011 at 03:02 PM.
Old Apr 04, 2011, 06:22 PM
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That would be great, i think it shouldnt be a problem to do it in software.
Input 8 would be a god choice but may input 15 is also a good choice, cause not used right now and brought out as 3 pin header.
PIN19/RX1 is on my JST connector
Its really not ment to be used as PPM in right now.
But you may have a JST Cable laying around?
Otherwise with some good soldering skill you can solder a very thin wire to it.
Last edited by Goofy23; Apr 04, 2011 at 06:59 PM.
Old Apr 04, 2011, 06:24 PM
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Are you waiting for more testing before starting the first production batch?
Old Apr 04, 2011, 08:52 PM
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i am pretty sure there will be some more results soon
Old Apr 05, 2011, 03:11 AM
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Quote:
Originally Posted by mgros View Post
in MEGA Boards PPM_SUM is connected to PIN 19 = RX1

I'm not sure if this pin is available in Flyduino boards

I think Alex can change code to use analog 8 instead.
thanks for this info.
i try to find the lines in the code to change it to pin 8.
i think it should be the THR channel because its the same on the pro mini.


Quote:
Originally Posted by Goofy23 View Post
i am pretty sure there will be some more results soon
there will.
Old Apr 05, 2011, 04:51 AM
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ok i looked at the code and its not as easy to change as i thought. im not a coder.

can somebody help to get the ppm sum input on the throttle pin [A8]?
any suggestions?
Old Apr 05, 2011, 07:15 AM
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Originally Posted by warthox View Post
ok i looked at the code and its not as easy to change as i thought. im not a coder.
can somebody help to get the ppm sum input on the throttle pin [A8]?
any suggestions?
AFAIK, you can't - [A8] is not an interupt port and can thus not be used as a ppm input port...

Ref. http://www.arduino.cc/en/Reference/AttachInterrupt

someone correct me if I'm wrong...
/a


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