noob throttle question

Hi all,

I have received my APM2.5 this week and have downloaded MP and had a play. I interfaced to my RC controller in preparation for a flight.

I have set up all the channels as recommended and flicking switches on the radio changes the APM's modes to manual/auto/RTL as expected. Also, in these modes, I can see the control surfaces moving, so almost everything is OK!

But.... in the Config>>Failsafe section I can see that APM does not want to control throttle. It won't bump the throttle and at all times it sits at zero.  I'm in armed mode. Not sure what else to check or enable?

You need to be a member of diydrones to add comments!

Join diydrones

Email me when people reply –

Replies

  • Thanks Richard. I took it out and launched in manual. Took it up to a good height and flicked to stabilise. The motor kept going (unlike the ground test) so this must be a safety feature.
  • I am as new to APM as you. I probably know even less. But... I am setting up my first APM in a fixed wing nitro plane and am having a similar issue getting the throttle min,max, and cruise set. It seems like you never know for sure what it's gonna do with the throttle in Auto or RTL modes etc. The only thing that comes to mind is I saw on you tube a guy who was testing out auto take off. The first time he turned it on it went full throttle and took off. Next time he hit auto take off there was a  pause before it did anything. . He tossed it and it didn't throttle up until too late and crashed bad. He commented that it seemed the APM would not [ most times but not always ] apply any throttle until it detected motion. For instance if he ran a bit it would throttle up then he'd let it go. But if it's sitting still... it was iffy what it would do. I have not had time to fly mine yet but have just about given up on the throttle settings on the ground. I don't think there is much more I can do until I get it in the air and just see / test what it does with the thottle. Just my two cents but perhaps you are having a similar issue. Either that or it's one of those hundreds of settings you've been staring at for hours like i have. LOL good luck

  • No it is switching to RTL according to MP. It's a plane not a copter. It will move the ailerons etc correctly but won't automatically apply any throttle, both in RTL and in Auto.
  • Developer

    So basically it's not switching to RTL when you turn off your transmitter right?

    Is your throttle above zero when you turn off your transmitter?  If you're in stabilize mode with throttle at zero when you turn off the transmitter it will immediately disarm the copter 'cuz it figures you must have been on the ground.  In your bench test switch to stabilize mode, raise the throttle, then turn off your tx and see what happens.

This reply was deleted.

Activity

DIY Robocars via Twitter
RT @a1k0n: Did I get rid of hand-tuned parameters? Yes. Am I still hand-tuning more parameters? Also yes. I have a few knobs to address the…
8 hours ago
DIY Robocars via Twitter
RT @a1k0n: I'm not going to spoil it, but (after charging the battery) this works way better than it has any right to. The car is now faste…
8 hours ago
DIY Robocars via Twitter
RT @a1k0n: Decided to just see what happens if I run the sim-trained neural net on the car, with some safety rails around max throttle slew…
14 hours ago
DIY Robocars via Twitter
Saturday
DIY Robocars via Twitter
RT @SmallpixelCar: @a1k0n @diyrobocars I learned from this. This is my speed profile. Looks like I am too conservative on the right side of…
Saturday
DIY Robocars via Twitter
RT @a1k0n: @SmallpixelCar @diyrobocars Dot color is speed; brighter is faster. Yeah, it has less room to explore in the tighter part, and t…
Saturday
DIY Robocars via Twitter
RT @a1k0n: I'm gonna try to do proper offline reinforcement learning for @diyrobocars and throw away all my manual parameter tuning for the…
Friday
DIY Robocars via Twitter
RT @circuitlaunch: DIY Robocars & Brazilian BBQ - Sat 10/1. Our track combines hairpin curves with an intersection for max danger. Take tha…
Thursday
DIY Robocars via Twitter
RT @SmallpixelCar: Had an great test today on @RAMS_RC_Club track. However the car starts to drift at 40mph. Some experts recommended to ch…
Sep 11
DIY Robocars via Twitter
RT @gclue_akira: 世界最速 チームtamiyaのaiカー https://t.co/1Qq2zOeftG
Sep 10
DIY Robocars via Twitter
RT @DanielChiaJH: Always a good time working on my @diyrobocars car at @circuitlaunch. Still got some work to do if I’m to beat @a1k0n howe…
Sep 10
DIY Robocars via Twitter
RT @SmallpixelCar: My new speed profile for @RAMS_RC_Club track https://t.co/RtLb7TcgIJ
Sep 10
DIY Robocars via Twitter
RT @SmallpixelCar: Practiced at @RAMS_RC_Club today with my new @ARRMARC car https://t.co/AEu2hCx89T
Aug 28
DIY Robocars via Twitter
Aug 24
DIY Robocars via Twitter
RT @gclue_akira: 柏の葉で走行させてるjetracerの中身 #instantNeRF #jetracer https://t.co/giVvuE4hP7
Jul 4
DIY Robocars via Twitter
Cool web-based self-driving simulator. Click save when the AI does the right thing https://github.com/pncsoares/self-driving-car
Jul 4
More…