Comment by carlos heli Manosalva on February 17, 2013 at 4:51pm

Hi Tim

My name is Carlos and my project is very similar to yours. I have a frame dji naza bluetooth arduino mega 2560, imu fusion 2000 adx 345.
I wonder if your configuration is similar and you have added a bec the project and if so what is your reference for purchase. Also if you would be so kind as to tell me I'd appreciate it connects.

I congratulate you because you've come a long way

Comment by Tim Green on February 17, 2013 at 5:41pm

I've since removed the BEC, as I have no servos to power it with at present.  The BEC is a castlerc.com 10A switching BEC.  I've used them before on sailplanes.

Comment by Tim Green on February 17, 2013 at 5:49pm

The F450 frame is stock DJI, including the 30A ESCs and the 920kv motors.  The sonar is disconnected.  There's a stock 3DR APM2.5, with the PM.  I also have a battery alarm on it.  I fly with a Zippy 25c 3s 5800 mah LiPo, that gets me 20 minute flights - and not a second longer.  I'm using Futaba 12FG with  R617FS rcvr in 7 channel mode, (as 8 channel mode will screw with my PPM encoder, as I haven't updated it).  I've lowered the stab P from default 4.5 to 3.6, and I like it there very much.  I've only flown in alt-hold and stab yet.  I'm using 2.9.  I'll be trying loiter next, and then RTL, as weather permits.

Comment by Tim Green on February 17, 2013 at 5:49pm

Oh yeah - the Ublox GPS too.

Comment by carlos heli Manosalva on February 19, 2013 at 6:58pm

thanks for your response.

But my question is regarding how to connect the frame bec dji450 or speed controllers. since I have not found an explanatory diagram.

Comment by carlos heli Manosalva on February 19, 2013 at 7:03pm

forgot to say. I have no ArduPilot. instead I have a 3000 imu fusion adx 345 connected to arduino mega and the hoists and frame are dji naza esc. When you start the project ArduPilot not know existed.

Comment by Tim Green on February 20, 2013 at 7:37am

The two heavy ESC battery wires are soldered to pads on the base of the f450 (the lower panel). The ESC three wire control cable attaches to the flight controller. The ESC's 3 heavy motor cables with bullet conns connect to a motor.

Comment by carlos heli Manosalva on February 20, 2013 at 9:41am

Ok thank you for your reply.
another question, which is reached refresh to update the esc. This is done by pwm?. where in the code I can review this topic ArduPilot

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