r/ardupilot

So currently, me and my team about to build a large size drone(2m±), with 100kv brushless motors, and I'm not really good on tuning pid, especially when building from scratch, I never purely tuning a pid before, so basically it's my first time. any advice on how to tune a large size drone's PID? like the methods or something like that. my best option is using a drone gimbal rig test(but it's 50/50 chance of using it, depend on the budget). I'm planning to use cube orange pixhawk as the FC.

Hello guys! I was hoping you could help me with an issue I have while doing simple autonomous missions with arducopter. The quad does the mission perfectly well when im using a radio controller, but as soon as i try to do the mission via the mission planner gcs using an elrs backpack the quad started yawing constantly(during takeoff, during the waypoints and during rtl as well) and on the last leg of the mission it even enters in some weird spin on landing. I changed the AUTO_OPTIONS bitmask to "ignore pilot yaw input in auto" and the yawing dissapeared on all parts of the mission(takeoff, waypoints, rtl) except on the landing phase of the rtl. I proceeded to change LAND_REPOSITION to "ignore pilot yaw input" and the yaw spin calmed down a lot during the landing phase but it is still there. Do you know what causes my landing yaw problem and how can i fix it?

I should add that loiter and althold work perfectly fine with a radio. Haven't tested them with only mission planner tho. I will add a video demonstrating my problem and logs from the last few flights. Thank you! https://we.tl/t-XOoFKHGcpbHUUYaq

Logs: https://we.tl/t-dB6NWFVxMRPm7uH5

I'm trying to learn Ardupilot with a simple project - running navigational sensor fusion via ardupilot's EKF3 using the IMU, and a Raspberry Pi as a companion computer doing velocity based visual flow (OpenCV).

I've just got a wheeled rigid frame to demo this on instead. Im not trying to fly, I just want to see the EKF doing its thing.

Which board would you recommend, H7 or Pixhawk 2.4.8, for an beginner? I read that the Pixhawk doesn't support all source parameters for EKF3. I'm not sure if thats a project killer or not yet.

Thanks!

I’ve run into a problem: when switching from auto mode to cruise mode, my airframe isn’t maintaining the speed I set in TRIM_ARSPD_CM. Upon reviewing the logs, I noticed that TRIM_ARSPD_CM doesn’t match the actual TECS.spdem. I have already checked all the TECS limits for climb rate, roll, pitch and so on. My glider is flying at a dangerously low speed.

Hi, i m currently building a drone and i would like to buy a stack for it (FC+ECS) what are some great ones you guys would advice me to choose compatible with ArduPilot.

Because last one i bought wasnt very compatible with ArduPilot.

Thanks you really much !