Setup Problems

[Sohan_2012]

Hi,

First Quadcopter Problems.

MultiWii SE V2.0
4 x Lulin ESC-30A
4 x 200W CDROM 1600kv motors
8045 props
2200 35C 3S Lipo
FS 9CH TR TX


Was hoping to get copter flying without programming from a PC

My motors arm fine, and Spin up, but they dont seem to go to full speed. I'm not getting trust to get off the ground..

I've tested the system by connecting all 4 ESC's to the throttle out of the TX with 3Aux's set to throttle. All motors spin up much faster and I get loads of lift that way

Connected to the MultiWii SE V2.0 I dont seem to be able to bring the motors up to full speed.. it seems to sit on the ground.. Motor directions and props are all on correctly.

I'm thinking I need to adjust the calibration of the min - max throttle range of the multiwii, can this only be done via the PC?

Thanks for any advice!

[PatrikE]

The engines is limited at 1850µs as default in config.
It's because there should be 150µs left for the controls.

It can be changed in the config but then you must upload new code to your Flightcontroller.

#define MAXTHROTTLE 1850

[Gimbal]

or you can calibrate esc with your tx at lowest settings possible

[Sohan_2012]

Thanks - I'll try this re-calibration of the ESC's using the RX first.

Not done anything with code or Arduino before. I'll have some learning to do before connecting up to a PC I think.

[Sohan_2012]

That kinda helped, Get more power to the motors now, but now the pitch is way out.

It just want to flip over, if I hold the yaw full up, it will just fly level..

Guess the ranges of my TR / TX are well out.. Is the best way to tune this via software?

[Gimbal]

use stick calibration, first calibrate acc then if needed calibrate with stick when not armed, on ground move the stick opposite way until its leveled

the yaw thing you are talking about sounds like the acc are not right or you could have mix connectors

[Sohan_2012]

Cant seem to calibrate ESC's to a small enough range, So decided I should look into the Gui.

Installed usbtiny drivers, installed Arduino sketch, but dont seem to be able to upload a sketch, nor read any sensors in the multiwii gui.. Watched serval youtube videos, have I missed something?

Installed Sketch
Installed Gui
Looked at the config sketch
uncommented card type, and changed min max throttle a little.
when try to upload I get cannot find card

When I try and connect via the gui, I get graph lines, which do not move, but no numbers are read

[PatrikE]

You need to use a ftdi programmer to connect your board to the computer.
It creates a Comport gui can connect to.

[Sohan_2012]

I have a CP2102 USB to UART programmer. Will that not do the tick?

Thansk for all the help so far everyone. Hopefully be flying soon. Well as soon as I get the correct programmer to connect up

[Rob]

If pin 28 DTR is connected. To produce the reset pulse by programming.
Toggle power to reset is also possible.

[PatrikE]

It's easiest to use one of theese.
https://www.sparkfun.com/products/9716
Can be found in several shops on the web.
Hobbyking,
Rctimer,
etc.