@Hector-Gutierrez thanks for the suggestion. However, I have now seen this unstable behavior in all modes (manual, altitude, position and offboard), both indoor and outdoors. I suspect that qvio is failing and trying to reset mid flight (Error: Not stationary was observed multiple times on the qvio_overlay page on VOXL portal). I don't think the GPS is even being used (QGC reports 100 HDOP and 0 satellites). The only mode where the UAV is controllable is Manual, but the qvio error is still present. @Alex-Kushleyev would you be able to share some insight into what could be happening? How can we resolve this issue? Thanks, George

@tonygurney , I am assuming that you are using the ESC hardware version M0134 (you can confirm using voxl-esc scan tool. Here is the datasheet for M0134. https://docs.modalai.com/modal-esc-datasheet/ This ESC has an option (via installing a 0 ohm resistor) to provide 3.3V to pin 1 of J3. This is the same voltage that is used for the MCUs that run on the ESC and should be used with caution (if this voltage rail is brought down by overloading, the ESC will shut down). Please see image below that shows where 0 ohm resistor should be (carefully) installed to enable 3.3V on pin1 of J3 (marked in red) [image: 1753107113526-m0134-diagram.jpg] If you actually wanted 5V (VAUX), that is available on the other side of the board via two test points at the edge of the board. This voltage rail is provided by a separate switching regulator. See the following section : https://docs.modalai.com/modal-esc-datasheet/#neopixel-led-support If you REALLY need 5V to be present on pin1 of J3, then you can add a small wire jumper from the VAUX test point directly to the pin1 of J3 (which is marked with a white dot). This pin 1 of J3 is normally disconnected. Please only do this if you are comfortable performing this type of soldering and we cannot guarantee the results :). Alex

@Alex-Kushleyev - thanks, I submitted the RMA request, will let you know after I have the chance to replace and test the replacement parts. Thanks, Hector

@mrawding good afternoon, i see that your topic is quite old, but I am struggling with px4 firmware build and was wondering if you ever managed to successfully build your px4 firmware ? If you have done it recently, I would appreciate a helping hand in this topic: https://forum.modalai.com/topic/4539/voxl2-hitl-sim-with-gazebo-in-docker-vtol-frame-support/13?_=1751379111988

@Ligma We designed the VRX to be compatible with any off the shelf HDMI input display. We have used HDZERO goggles with the VRX so you should have no issues there

@Eric-Katzfey - Brilliant idea- thank you.

@justin-sentinel By default the stinger won't have an IP connection out of the box, it would take a bit of tweaking to get it enabled. Can you send a link to the page you're referencing to make sure I'm understanding the context?

@Hector-Gutierrez Point a small fan at the VOXL 2 while you have it on your desktop. You need to have air flow. When it is on a drone and flying you get a lot of airflow from the propellers but on the desktop you should have a small fan.

@taiwohazeez No problem, it would also be helpful to know what SDK version is loaded on your drone. You can check this with voxl-version

@tom - that solved the problem . The solution was to download and build using voxl-cross:V2.7 Thanks for the very prompt response ! regards, Hector

@Moderator When you mentioned different WiFi adapters, do you mean that the Starling 2 is able to support newer WiFi adapters that are WiFi 6E capable too? Or only those that are listed here?

So this wouldn't be a scenario where the GPS is failing entirely, potentially making it in violation of FAA Remote ID, but would just be a weaker signal?

@wrossi17 , Starling 2 Max uses two 2S batteries connected in series, using the two xt30 connectors. If one of the batteries is not plugged in, the circuit is incomplete and the drone will not be powered. If you want to use a power supply to power the Starling 2 Max, with the drone we ship a special plug that plugs into one of the xt30 connectors, shorting it, so that the other xt30 can be powered with a single source. Please check the packaging of the drone for the plug (it may be in a small envelope) or you can make your own plug. Please let me know if you need more details about that. If you use a power supply, use a 3-4S (12-16V) to power Starling 2 Max for bench testing and it is not advised to try to arm while connected to a power supply. Alex

@wifa799 @Viktor-Gal You can use any CRSF (ELRS) receiver with the VOXL 2 and it will work. While we don't support flashing upstream builds of ELRS from the VOXL, if you update it yourself it will work without requiring any additional modification or patches. The patches from ModalAI just include some extra utilities for managing the receiver with the voxl-elrs tool such as the "unbind" command and pwm configuration from the VOXL. I'll see if I can provide a build for the betafpv receiver which matches the 3.5.3 version provided for our in-house M0184 receivers, but in the meantime you can definitely use firmware from the upstream ELRS repo.