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servo jitter

Started this discussion. Last reply by Samuel Dec 16, 2010. 9 Replies 0 Likes

LED LIghts and GPS Lock

Started this discussion. Last reply by Michael Dean Sep 8, 2010. 7 Replies 0 Likes

another newbie question.i am getting the following lights on the boards;IMU solid orange, occasionally drop out then back solidSolid blue, again occasionaly drop out then back solid, GPS lock after a…Continue

newbie testing phase

Started this discussion. Last reply by Michael Dean Sep 2, 2010. 4 Replies 0 Likes

i am trying to conduct the tests before i fly my skywalker.i have test flown my plane without any gear and have now just installed all the ardupilot.on the test page…Continue

ardupilot questions.

Started this discussion. Last reply by Graham Dyer Aug 24, 2010. 2 Replies 0 Likes

hello all, i am just setting up my ardupilot and i have some questions (maybe a dumb one)1) ardupilot takes the throttle, ailerons and elevator. is it possible to plug a rudder and pan and tilt…Continue

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Samuel replied to Michael Dean's discussion 'servo jitter'

I have the same problem. When i switch to stabilize the servo starts to jitter a bit. It does not happen in the 2.6 version, but in that version the servo reacts very dull, so i want to stick with the 2.7 version. Even if i dont change anything in…

Dec 16, 2010

Michael Dean replied to Michael Dean's discussion 'servo jitter'

i gave 2_6_2 ago and its working fine .. no jitter.

Sep 19, 2010

Michael Dean replied to Michael Dean's discussion 'servo jitter'

could the gain on the IMU have anything to do with it, in particular this part // LPR530 & LY530 Sensitivity (from datasheet) => 3.33mV/º/s, 3.22mV/ADC step => 1.03 // Tested values : 0.96,0.96,0.94 #define Gyro_Gain_X 0.92 //X axis…

Sep 19, 2010

Michael Dean replied to Michael Dean's discussion 'servo jitter'

so should i give 2.6 a go ?

Sep 18, 2010

Richard Green replied to Michael Dean's discussion 'servo jitter'

I have exactly the same problem with version 2.7 (the servos are rock steady in version 2.6). I raised an issue here http://code.google.com/p/ardupilot/issues/detail?id=19&can=1 concerning it. Jason thinks that it is a resource issue that can…

Sep 17, 2010

Michael Dean replied to Michael Dean's discussion 'servo jitter'

makes it worse on Type 1 ( not to mention goes full throttle when u click the switch up one :D ) disconnected the motor and gave it a few goes, stabilization is worse, fly by wire has less jitter. i read somewhere in the manual i should be TYPE 0…

Sep 17, 2010

Chris Anderson replied to Michael Dean's discussion 'servo jitter'

Can you try #define RADIO_TYPE 1 Also, just want to confirm that you've soldered your underboard jumpers as described here.

Sep 17, 2010

Michael Dean replied to Michael Dean's discussion 'servo jitter'

files attached

Sep 17, 2010

Chris Anderson replied to Michael Dean's discussion 'servo jitter'

Hi Michael, If you use the optocouplers, you need an independent power supply for the servos. That's why they don't work on the board to servo side. Please upload your config file and I'll try to diagnose your setup.

Sep 17, 2010

servo jitter

hi all again :)i am getting a lot of servo jitter on my middle switch. i have them setup as #define POSITION_1 MANUAL #define POSITION_2 STABILIZE#define POSITION_3 FLY_BY_WIRE_Amanual is fine, rock solidi get a lot of constant jitter and twitch on stabilize and the imu is very stilland a little bit not as bad jitter on fly by wirei have tried the servo optocoupler im an not 100% sure i am using it correct.i put it between the RX and the ardupilot board and i am still getting jitter, i tried…See More

Discussion posted by Michael Dean Sep 17, 2010

9 Comments 0 Likes

Michael Dean replied to Michael Dean's discussion 'LED LIghts and GPS Lock'

thanks chris. got it working straight away. just gotta reverse a few servo's.

Sep 8, 2010

Chris Anderson replied to Michael Dean's discussion 'LED LIghts and GPS Lock'

Michael, you've got your configuration file wrong. If you're using the IMU (which handles the GPS parsing) you should select IMU (3) for GPS Protocol. Also, are you using a shield on your ArduPilot board? If not, select -1 for the shield…

Sep 7, 2010

Michael Dean replied to Michael Dean's discussion 'LED LIghts and GPS Lock'

anyone ?

Sep 7, 2010

Michael Dean replied to Michael Dean's discussion 'LED LIghts and GPS Lock'

these are the files i am using

Sep 5, 2010

Michael Dean replied to Michael Dean's discussion 'LED LIghts and GPS Lock'

ive got the latest Ardupilot code 2_7_02 and the latest Ardu imu code from here http://code.google.com/p/ardu-imu/downloads/list V1.7 i have tested the IMU on the ArduIMU Test V1.1.17 by happykillmore, i selected the plane and with a few reverse…

Sep 5, 2010

Nathaniel Caner replied to Michael Dean's discussion 'LED LIghts and GPS Lock'

Hello Michael, What revision of code are you using for both the IMU and the ArduPilot boards? Should be rev 136 for the IMU and at least 2.7.02 from the download section for the ArduPilot board. Have you run any of the Debug_SubSystem functions? I…

Sep 4, 2010