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ArduPlane User Group

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Initial setting for Turnigy 9X transmitter

Started by Ard Surspec. Last reply by Ravi on Saturday. 1 Reply

Hello everyone,I'm a complete beginner with zero experience in building planes and in the process of learning (via youtube/and this forum). My first project is going to be a skywalker X5, all parts…Continue

CUAir - Cornell Autonomous Aerial Vehicle Team

Started by CUAIR. Last reply by CUAIR on Thursday. 4 Replies

Hey everyone,I just wanted to give a little background on our team, CUAir, Cornell’s Autonomous Aerial Vehicle team. We compete in the AUVSI SUAS competition (…Continue

Tags: catapult, auto takeoff, Auto landing, composites, Competition

mission planner displaying "bad gyro" and "disarmed" when 2.77 arduplane code is burned

Started by darshana unnikrishnan. Last reply by Manuel Ribeiro Apr 17. 8 Replies

I am a newbie in this field and would like to get some help related to the PILS setup.I have been burning 2.68 code into APM 2.6 board and performing PILS and no error was got. But the same was done…Continue

Tags: mission planner, disarmed, arduplane, arducode 2.77, bad gyro

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Comment by Ard Surspec on March 4, 2015 at 11:50pm

Hello everyone,

I'm a complete beginner with zero experience in building planes and in the process of learning (via youtube/and this forum). My first project is going to be a skywalker X5, all parts are ordered and in the house.

My first question is with regard to setting up a Turnigy X9 transmitter & what to set/not to set under the FUNC options. There are a couple of dozens different items there and I have no clue what most of them were.

What I'm looking for is some basic numbers/parameters  to be set to start with.
Hope that makes sense. TIA for your help.


Developer
Comment by Bill Bonney on January 10, 2015 at 10:14pm

You need to set the ARSPD_PIN parameter = 65 for it to work 

Comment by healthyfatboy on January 10, 2015 at 7:40pm

Great to know! I guess I forgot there's also I2C on the APM2.


Developer
Comment by Andrew Tridgell on January 10, 2015 at 1:25pm

The I2C digital airspeed sensors do work with APM2.

Comment by healthyfatboy on January 10, 2015 at 11:33am

If you don't currently have an airspeed sensor, you have to turn that off in the optional hardware menu. You're seeing junk data because it's reading whatever noise is on the analog pin and interpreting whatever it sees.

You can't calibrate something that's not there and dial it in. The board is just seeing a bunch of noise.

The APM2.6 can't use the digital airspeed sensor. Just get an analog one and follow the Wiki/Manual and it'll tell you how to get it connected and set up. Then go to the airspeed tuning section of the manual and get that going as well.

Comment by Patrick O'Neill on January 10, 2015 at 10:40am

Thanks for the responses guys! So turn off Airspeed Sensor in MP where? and I do want to know my AS indicated and have only seen the analog sensor by 3DR and  pitot tube variety. Please link me the "digital" ASs unit option.

So then...what would cause my current AS to be so way off and jumping round-aboutly. Can I manipulate the params to dial it in or is there possibly an outside interference of sorts to consider?

Thanks again, Patrick

Comment by Gustav Kuhn on January 10, 2015 at 1:30am

Coming from a gliding background, yes, the airspeed sensor is almost essential in a plane.

Secondly, APM 2.x and all it's clones uses the analogue sensor.

As does the old APM 1.x, yes, I still fly those !

Comment by Josh Welsh on January 10, 2015 at 1:21am

Are you certain the digital airspeed sensor works with the APM?  I thought that was Pixhawk and above..


Developer
Comment by Grant Morphett on January 9, 2015 at 9:04pm

Hi Patrick.  An Airspeed Sensor is a good idea as without it the APM is "estimating" the airspeed from the other sensors.  Make sure you get a digital one though.

Thanks.  Grant

Comment by healthyfatboy on January 9, 2015 at 6:31pm

If you don't have an airspeed sensor, you can't calibrate it. Just turn off the airspeed sensor option in MP and those readings and warnings will go away.

For the best performance, it's good to have an airspeed sensor but you can get by without one as well.

 
 
 

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