Out of the Box Starling 2 Max Configuration
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Hi,
Is there recommended default configuration for out-of-the-box Starling 2 Max's for generic outdoor flight?
We've been experiencing the following problems across 1 LTE drone and 5 non-LTE drones, intermittently. The primary symptom was originally unreliable altitude/height measurements on the LTE drone. Sometimes reporting height wrong by 10m+ or more, or negative altitudes. There also has been consistent "Preflight fail: height estimate unstable" and similar messages, though the LTE drone manages to arm more often with these displayed errors.
After swapping to the non-LTE drones we had some crashes. Here are the two flights we had that crashed, and despite being able to arm, they were fighting against control inputs from the pilot once in the air and seemed like they had little or no GPS fix based on our review of the logs:
- https://logs.px4.io/plot_app?log=ec33a5ca-db61-4b26-a72a-d0678973d501
- https://review.px4.io/plot_app?log=fa945bd6-3734-4f78-8567-c008234c8042
starling2-max (D0012):~$ voxl-version system-image: 1.8.04-M0054-14.1a-perf kernel: #1 SMP PREEMPT Mon Mar 24 22:31:58 UTC 2025 4.19.125 hw platform: M0054 mach.var: 1.0.1 SKU: MRB-D0012-4-V2-C29-T9-M28-X0 voxl-suite: 1.5.0Thank you for any guidance or support
-
Hi,
Is there recommended default configuration for out-of-the-box Starling 2 Max's for generic outdoor flight?
We've been experiencing the following problems across 1 LTE drone and 5 non-LTE drones, intermittently. The primary symptom was originally unreliable altitude/height measurements on the LTE drone. Sometimes reporting height wrong by 10m+ or more, or negative altitudes. There also has been consistent "Preflight fail: height estimate unstable" and similar messages, though the LTE drone manages to arm more often with these displayed errors.
After swapping to the non-LTE drones we had some crashes. Here are the two flights we had that crashed, and despite being able to arm, they were fighting against control inputs from the pilot once in the air and seemed like they had little or no GPS fix based on our review of the logs:
- https://logs.px4.io/plot_app?log=ec33a5ca-db61-4b26-a72a-d0678973d501
- https://review.px4.io/plot_app?log=fa945bd6-3734-4f78-8567-c008234c8042
starling2-max (D0012):~$ voxl-version system-image: 1.8.04-M0054-14.1a-perf kernel: #1 SMP PREEMPT Mon Mar 24 22:31:58 UTC 2025 4.19.125 hw platform: M0054 mach.var: 1.0.1 SKU: MRB-D0012-4-V2-C29-T9-M28-X0 voxl-suite: 1.5.0Thank you for any guidance or support
@brandon from the factory, it is typically configured for VIO flight. You should configure for GPS as VIO may not be well tuned for your outdoor flights
You can find some helper parameter files here: https://gitlab.com/voxl-public/voxl-sdk/utilities/voxl-px4-params/-/tree/master/params/v1.14/EKF2_helpers?ref_type=heads
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@brandon from the factory, it is typically configured for VIO flight. You should configure for GPS as VIO may not be well tuned for your outdoor flights
You can find some helper parameter files here: https://gitlab.com/voxl-public/voxl-sdk/utilities/voxl-px4-params/-/tree/master/params/v1.14/EKF2_helpers?ref_type=heads
@Moderator Thanks for the quick response!
Which helper would you recommend for outdoor flight configuration with GPS? I see there are several available for different variations.
An added detail: we need good relative altitude measurements at low altitudes for our custom precision landing solution.
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