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Gimbal power problems with APM 2

Started Jul 22, 2012 0 Replies

Hey folks, I'm hoping someone can help me debug a very weird problem I've been having with the APM 2 and my 2-axis gimbal on my quad.Basically, whenever the gimbal servos are plugged in the APM 2…Continue

Tags: 2, APM, debugging, power

Arducopter altitude hold details

Started this discussion. Last reply by jasonshort Jul 11, 2012. 4 Replies

Hey guys, I'm trying to understand what exactly is happening when you change the throttle in altitude hold and I'm hoping someone can explain the details to me.Baometric altitude hold works great for…Continue

Tags: hold, altitude

 

H H's Page

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H H posted a discussion

Gimbal power problems with APM 2

Hey folks, I'm hoping someone can help me debug a very weird problem I've been having with the APM 2 and my 2-axis gimbal on my quad.Basically, whenever the gimbal servos are plugged in the APM 2 exhibits very strange behavior, ranging from refusing to boot entirely to booting but not responding to inputs from the RC. This has actually resulted in some flights where the quad took off fine, then just stopped responding to commands but continued to fly and self-stabilize until running into a…See More
Jul 22, 2012

Developer
jasonshort replied to H H's discussion Arducopter altitude hold details
"You're exactly right about the lag in the baro. There is a small filter and this add some more lag. There is also a bad random walk in the baro which is what you're seeing as the bad behavior. APM2 is much much better, but the noise being…"
Jul 11, 2012
Aaron replied to H H's discussion Arducopter altitude hold details
"Yea, i'm not sure either, I do know that 2.5.4 and below, it was rock solid, as soon as the throttle was neutralized, so was the quad... "
Jul 11, 2012
H H replied to H H's discussion Arducopter altitude hold details
"Ok! I figured it out. The control code does do what you'd expect, which is it lets you ramp up the throttle in altitude hold, and when you go back to neutral it sets the hold altitude as the current altitude estimate. So you do change the…"
Jul 11, 2012
Aaron replied to H H's discussion Arducopter altitude hold details
"I have noticed the same behavior from my quad.. I was assuming it was my home built frame (slightly heavy). I have raised throttle_p and Alt_hold_p (I think) with the same results.. Usually it will settle LOWER than the previous hold I raised it…"
Jul 11, 2012
H H posted a discussion

Arducopter altitude hold details

Hey guys, I'm trying to understand what exactly is happening when you change the throttle in altitude hold and I'm hoping someone can explain the details to me.Baometric altitude hold works great for me when I try to hover at a set height, but changing the setpoint seems really unintuitive. When I push the throttle up the quad climbs, but when I put the throttle back to neutral instead of holding its altitude the quad comes way back down.Playing with the sim reveals that when you push the…See More
Jul 11, 2012

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I'm interested in building and flying autonomous quads!

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