Subcategories

• FPV Drones

  Stinger Vision FPV
  10
  Topics
  42
  Posts

  T

  Hi support,

  I am a PhD student, and I am very new to robotics. We have 4 starling 2 drones in the lab, and right now, I have two of those drones being prepared for RMA. The drones keeps getting damaged because I don't have the right knowledge about drones. I looked up the technical documentations online, but there are still so many things I don't know. For instance, one of my drone crashed when i toggled the switch to hold mode (and it hasn't done that ever since I got it),it shot straight up very fast. I keep getting height estimate not stable (I don't even know what to do to fix that error). Also, the last working drone also drifts around when you toggle the controller to hold (the middle position). At this point, I cant even fly the drones because I might crash them again. And eventually I will get in trouble with these. Can you help with documentations that will make a beginner get all the necessary knowledge. Right now, I am just working on the drone blindly. I will be grateful if you can help with the situation.

  Thanks,
  Taiwo

• VOXL Accessories

  Microhard Modems Cellular Modems Power Modules Image Sensors
  272
  Topics
  1520
  Posts

  G

  @Capstone-0 Our drone crashed and we ditched our project but has ModalAI added support for AT commands for the 5G (I assume EM9291) modem yet? If not, I figured out how to do it and posted instructions here

  https://forum.modalai.com/post/19131

  Once you get those commands, you can set up a service to query the modem for its signal strength and pump the output somewhere. Someone else in that forum discusses it a bit.

• VOXL Compute & Autopilot

  Product related questions and answers

  VOXL 2 Mini VOXL 2 VOXL Flight VOXL Flight Core v2 Flight Core VOXL 2 IO Flight Core - ArduPilot
  929
  Topics
  4895
  Posts

  F

  I fix this issue.
  switch the Pin1 & Pin4 of MCBL-00010 cable is OK

• VOXL Dev Kits

  Product related questions and answers

  VOXL-CAM VOXL Flight Deck
  169
  Topics
  806
  Posts

  N

  @kabumei
  Hello, my name is Naoki, I am keen on this project, could you send me a detail to major.gits501@gmail.com?

• VOXL Dev Drones

  Product related questions and answers

  PX4 Autonomy Developer Kit Starling & Starling 2 Sentinel VOXL m500 Reference Drone Qualcomm Flight RB5 5G Drone Seeker
  573
  Topics
  2947
  Posts

  E

  @Hunter-Scott When you swapped in the power module board did you update the px4 configuration file in /etc/modalai/voxl-px4.conf? In that file, how is POWER_MODULE set? For the power module it should be POWER_MANAGER=VOXLPM. For standard Starling 2 Max configuration it should be NONE. Can you stop voxl-px4 running as a service systemctl stop voxl-px4, wait a few seconds, then run voxl-px4 from the command line in non-daemon mode with voxl-px4 -d and let the startup script run through. At the command prompt type ver all and qshell voxl_esc status and then include all of the output here? In the log that you sent that did have battery_status, where did that come from? A different drone?

• ESCs
  86
  Topics
  682
  Posts

  박

  Hello Modal AI team,

  I'm currently testing Ardupilot firmware on the Flight Core v2, and I am trying to use the VOXL Mini 4-in-1 ESC in PWM mode (not UART)
  The motors do spin, but I'm facing two criticla issues:

  1. PWM min/max values do not match the ESC range
  Even after setting standard values:

  SERVO _MIN = 1000 SERVO _TRIM = 1000 SERVO _MAX= 2000 MOT_PWM_TYPE = 0(Nomal) ※If I change this parameter for 6(Dshot600), Motor don't spin well.

  the ESC does not respond correctly.
  It looks like the ESC expects a different throttle calibration range, and the output from Ardupilot is not lining up with the ESC's internal min/max mapping.

  2. Motors keep spinning even after Disarm
  Even when the vehicle is disarmed, the motors continue spinning at a low RPM.
  However, the ESC still keeps the motors running, which makes me suspect that the ESC interprets the "idle PWM" differently from standard hobby ESCs

  3. Questions
  3-1. Does the VOXL Mini 4-in-1 ESC require a specific PWM range or calibration sequence when used outside PX4/VOXL?
  3-2. Is there a recommended PWM frequency or pulse width range for compatibility with Ardupilot?
  3-3. Are there known limitations when using ESC in PWM mode with Ardupilot(instead of the UART protocol it was designed for)?
  3-4. Is there any way to explicitly set the ESC's zero-throttle PWM value?

  4. Test Environment

  FC : Modal AI Flight Core v2 ESC : VOXL Mini 4-in-1 ESC (PWM input pins used) Firmware : Ardupilot Copter GCS : Mission Planner MOTOR : T-Motor Air2216/kv920 Controller : SIYI FT24 (Sbus) Battery : 3S 5,300mAh LiPo

  Any guidance or documentation on the correct PWM range, calibration method, or expected behavior would be greatly appreciated.

  Thank you!