Originally Posted by Boykintom

Are you absolutely sure that you have the right props on the right motors and that they right side up?

Thanks for the reply Boykin. Yes, I have the props and motors going the correct. direction.
I have included a capture of the gui.

Originally Posted by menace69

What blades did you go with and what's your motor and esc combo?

Hobbywing skywalker 20A esc, 1000kv motor, with gws 9x5 three blade props. Just a little disclaimer about the props, I got eight props shipped in a bubblewrap envelope so some of the blades were bent. Their tracking is terrible, but I balanced them anyway and they seem to work so far.

Originally Posted by MuddyWulf

Thanks for the reply Boykin. Yes, I have the props and motors going the correct. direction.
I have included a capture of the gui.

When you throttle up with the gui running, does the display for throttle go all the way up to ~1900?

Take the props off first, then do this with it armed, just for a second. What do the motor outputs show? Do they go all the way to the top?

Originally Posted by TS00

First, you're going to need to upgrade to 2.0 (or 2.1). But that will only take a few minutes.

In order to use cheap seial gps modules (e.g. Ublox), you need a way to convert this signal to I2C. This is done with an arduino nano. Search or the Crius Nano board.

You'll be able to position hold and RTL. No waypoints with multiwii.

Thanks,
Can't I use a gps module that works over UART, without an arduino? For example this one? http://www.alibaba.com/product-gs/51...t_spi_i2c.html

or how can I do that with an arduino nano?

Thanks

I don't know about using a uart gps, a few people have mentioned it but I've never seen one implemented.

This is a good writeup on interfacing an i2c gps with the multiwii. You can use a number of different processors to proces the signal, this one uses an ATTINY4313.

http://www.multiwii.com/forum/viewto...s+howto#p16661

Originally Posted by TS00

When you throttle up with the gui running, does the display for throttle go all the way up to ~1900?

Take the props off first, then do this with it armed, just for a second. What do the motor outputs show? Do they go all the way to the top?

I gave it another try before work today. When connected to the gui, the throttle level was up to 2003. The individual motor values bounced up and down a little but stayed very close to 2000. I'm not sure what else to try but I'm guessing it is a minute issue that denies me the pleasure of flying. Willing to try other suggestions. Thanks.

Just had a thought - you're not using a 2S battery, are you?

Thanks TS00

Originally Posted by vineet_p

Thanks TS00

You're welcome. I think it's worth going the i2c route, i2c is very simple and robust.

I'm playing around with an optical flow sensor at the moment, for low altitude position hold, as in this thread:

http://www.multiwii.com/forum/viewto...t=optical+flow

It's very neat.

Originally Posted by TS00

Just had a thought - you're not using a 2S battery, are you?

No 3s 30c.

Originally Posted by MuddyWulf

No 3s 30c.

When you throttle up, do you think the motors are reaching their full rpm? Do they sound like they're doing a few thousand rpm?

My money is still on two of your props or motors sucking instead of blowing :-)

The print or embossing should face up, on the props.

Originally Posted by TS00

When you throttle up, do you think the motors are reaching their full rpm? Do they sound like they're doing a few thousand rpm?

My money is still on two of your props or motors sucking instead of blowing :-)

The motors turn in the correct direction. when on the ground and powered, the quad's movement is in agreement with my stick position. It just seems that there is more power to be gained through some other config I may have missed. It wants to hover but needs a bit more power. This is with the stick at full throttle. Maybe I will restart again. Any clue about the debug 1 on the gui I posted? Thanks.

Originally Posted by MuddyWulf

The motors turn in the correct direction. when on the ground and powered, the quad's movement is in agreement with my stick position. It just seems that there is more power to be gained through some other config I may have missed. It wants to hover but needs a bit more power. This is with the stick at full throttle. Maybe I will restart again. Any clue about the debug 1 on the gui I posted? Thanks.

There's definitely something fishy going on. There isn't anything else to adjust to squeeze out more power.

Tell you what, take a closeup photo of the top of the machine, getting all the props in shot. Make it as well focussed and high-res as you can. Maybe also do a second one looking down at a 45 degree angle.

Post the photos and I'll take a close look.

Debug1 - ignore that, it is just a number that the multiwii devs are outputting. The number's origin changes from release to release, as they add new features. It doesn't indicate an error.

Originally Posted by TS00

There's definitely something fishy going on. There isn't anything else to adjust to squeeze out more power.

Tell you what, take a closeup photo of the top of the machine, getting all the props in shot. Make it as well focussed and high-res as you can. Maybe also do a second one looking down at a 45 degree angle.

Post the photos and I'll take a close look.

Debug1 - ignore that, it is just a number that the multiwii devs are outputting. The number's origin changes from release to release, as they add new features. It doesn't indicate an error.

Thanks TS00. Will do when I get home.