VOXL Accessories

Inquiry About 5G Modem Carrier Board (USIM & VPN Support)

taegyeong lee — Wed, 06 May 2026 00:47:10 GMT

Hello,

I am writing to inquire about your product.

I am planning to use the 5G Modem Carrier Board, USB Hub, and I/O Breakout for VOXL 2, and I have two questions:

Does the 5G Modem Carrier Board support USIM cards from Korean telecom carriers?
Does it support VPN functionality?

I would greatly appreciate your response.

Time of Flight Sensor to be used on RB5 and Starling 2 Max

Moderator — Mon, 20 Apr 2026 17:10:37 GMT

@ChrisB here is a system architecture to follow: https://docs.modalai.com/voxl2-d0014/

We do not support an RB5, that is a Qualcomm product

M0186 Camera DFOV

Windmill — Wed, 18 Mar 2026 17:24:16 GMT

@Alex-Kushleyev Thank you for the hint. We have fixed the issue by changing the resolution to 2704x1540 in the voxl-camera-server.conf. Now, the actual DFOV is 150°.

Voxl2 Thermal Throttling and Heat Dissipation Methods

Tanner Metzmeier — Sat, 14 Mar 2026 22:38:51 GMT

@Alex-Kushleyev I found that buying an off-the-shelf raspberry pi heatsink that is 14mm x 10mm (meant for the RAM chip) and combining with a fan works great for the underside of the SIP (on the opposite side of where the main board joins the Ethernet/USB board. Brought my temps down by at least 10-20 degrees even under intense load.

voxl io server

Alex Kushleyev — Wed, 11 Mar 2026 16:52:46 GMT

Hi @qubotics-admin ,

Our understanding is that the voxl2_io driver should present itself as a generic PWM output (up to 8 channels) and you should be able to map any function you need to it. Although we have not explicitly tested every function. Can you please clarify which version of voxl-px4 you are using and elaborate on the "limited options" that you have for selecting the PWM function (what are you expecting to be able to set and what are the options).

Alex

AR0144 Camera capacitor came off

Dronodev — Fri, 13 Feb 2026 13:38:50 GMT

@Alex-Kushleyev alright, thanks for the help!

Data Sheet Missing MSU-M0039-1-01

Horizon — Fri, 30 Jan 2026 21:29:30 GMT

Hello @Moderator

Looking for detailed info including lifecycle. There seems to be a broken link for the data sheet

https://www.modalai.com/collections/all/products/m0039?variant=45004449087792

404 Page Not Found https://docs.modalai.com/m0039/

GPS for Starling2

Nitin Varma Vegesna — Tue, 09 Dec 2025 06:34:49 GMT

@Zachary-Lowell-0 thanks.

Inquiry Regarding Propeller Guards / Safety Accessories for VOXL UAV

mamuncanada — Wed, 08 Oct 2025 19:35:01 GMT

@tom Thank you very much for your information.

M0202 Hadron640R adapter

emarcphera — Mon, 22 Sep 2025 18:01:18 GMT

@Alex-Kushleyev , Thank you, I successfully ordered the it.

M0201/M0153 J2 Pinout

Vinny — Thu, 11 Sep 2025 21:03:55 GMT

Hi @18257581
Sometimes our newer boards are lacking in full documentation, so thanks for your patience.
We have not publicly posted our uCoax pinouts and not sure yet if we plan to. For now it is required to use our full solution which is host adapters, cables, and sensor boards.
I'll bring it to the team. But, we are unlikely to open this up since in order for us to test the components, which are very fragile, they need to be bundled together and not separated, so it would actually cost us more (costing our customers more) to test units individually for customer designs.
Only the Coax cable we sell individually and that is pinned 1:1 with all 26 conductors present unlike some of the other COTS FPV systems.

However, for JST and other cable-to-board and board-to-board connectors, yes, we need to get that listed.
The pinout on J4 of M0201 (the replacement for M0153) is in the same Dronecode inspired format we use at ModalAI for UART + I2C, but in this case since it is not UART, it is 2 GPIOS.
So,
Pin 1 = 3.3V
Pin 2 = GPIO_1 (Undefined/Unavailable/Reserved for Future Use)
Pin 3 = GPIO_2 (Undefined/Unavailable/Reserved for Future Use)
Pin 4 = GIMBAL_I2C_SDA (3.3V Logic Levels, 2.2K pull-up resistor present)
Pin 5 = GIMBAL_I2C_SCL (3.3V Logic Levels, 2.2K pull-up resistor present)
Pin 6 = GND

Smallest/lightest USB to Ethernet adapter

Steven Girouard — Thu, 17 Jul 2025 05:33:26 GMT

Any recommendation on the smallest and lightest USBC to ethernet adapter? Most Anker and similar adapters are approximately 2 in x 1 in plus the pigtail. Is anyone using anything smaller? Thank you!

updating M0065

Alex Kushleyev — Fri, 27 Jun 2025 23:48:43 GMT

The latest firmware for M0065 can be found on gitlab here

or directly on voxl2 in /usr/share/modalai/voxl2-io-tools/firmware/

Once updated, the firmware will be detected as version 2. The previous version 1 is no longer supported due to several bugs.

Alex

VOXL 2 Ethernet and USB Hub Add-on with Doodle lab radio

AidanGallagher — Tue, 10 Jun 2025 15:20:14 GMT

@tom @shawn_ricardo Thanks very much - ill give that a try

Please send me an Invoice QTY:3 MCBL-00022-AC & QTY:2 m0153

tom — Tue, 15 Apr 2025 19:37:49 GMT

@FIREBIRD Please reach out here: https://www.modalai.com/pages/contact-us

Compatible ToF sensor setup with VOXL2 Mini

Alex Kushleyev — Wed, 09 Apr 2025 11:59:58 GMT

@Sarika-Sharma ,

The preview width and height parameters are always in the camera config file, so if you added them, they are duplicates (and will be ignored).

Please read through this thread as it has pretty detailed explanation how to configure the correct tof sensor (old or new) for a custom configuration.

Camera-server-config-helper is indeed helpful. If you use it correctly, you should not have to manually modify the resolution in the config file.

If you still cannot get this to work, please let me know what cameras you have plugged in (and which camera ports) on your voxl 2 mini.

Alex

VOXL 2 Ethernet Expansion and HUB Power issue

Jskim — Mon, 10 Mar 2025 00:41:15 GMT

@jakkkobo
Thanks for the quick reply.

JS, Kim

Clarification on Livox Mid 360 LiDAR Compatibility with VOXL 2 on Starling 2 Max Outdoor Drone

Raza Rizvi — Thu, 20 Feb 2025 15:45:04 GMT

@Thasindu-Wickrama Hey man, I am planning to do the same on a VOXL2 powered custom build drone.
Did you have any success?

VOXL2 Doodle Labs Nano Integration

Vinny — Tue, 10 Dec 2024 20:17:59 GMT

Hi @Jetson-Nano
Please see this cable page for more guidance.
https://docs.modalai.com/cable-datasheets/#mcbl-00085
Doodle is one of those applications which we give customers enough to start trying it, but we encourage a custom solution to fit your application(s).
Thanks!
Vinny

M0062 VOXL 2 Ethernet Expansion and USB Hub Missing User Guide

tom — Tue, 10 Dec 2024 08:54:26 GMT

@Morten-Nissov Likely should all be off, it's been a while since I've had one of these come across my desk. I'll see if I can find one to reference.

Microhard module integration with VOXL2

Vinny — Fri, 29 Nov 2024 13:07:15 GMT

Hi @Jetson-Nano
No difference in data rate on any MH board. They are all USB2 rates.

Hope that helped!

ELRS receiver keeps getting unbinded after a reboot

Jetson Nano — Mon, 28 Oct 2024 13:06:20 GMT

@Zachary-Lowell-0

Below is the output of what I get from executing
cat /etc/modalai/voxl-px4.confg

voxl2:/etc/modalai$ cat voxl-px4.conf #!/bin/bash # # voxl-px4 Configuration File # # GPS: # Tell PX4 which GPS to use. If there is no GPS unit use NONE. Otherwise # choose AUTODETECT and the startup script will attempt to automatically # configure the GPS, magnetometer, and status LED # Options include: [NONE, AUTODETECT] # # RC: # Tell PX4 which RC transmitter to use. # Use EXTERNAL when getting RC control from external Mavlink messages (e.g Via QGC) # Options include: [SPEKTRUM, CRSF_MAV, CRSF_RAW, M0065_SBUS, EXTERNAL, FAKE_RC_INPUT] # # ESC: # Tell PX4 which type of ESC to use. # Options include: [VOXL_ESC, VOXL2_IO_PWM_ESC] # # POWER_MANAGER: # Tell PX4 which power manager to use. # Use NONE for ModalAI Mini-ESC since the ESC driver handles PM. # Use EXTERNAL when not using the ModalAI APM power manager to power the board # This also just disables the voxlpm driver, same as the NONE option # Options include: [VOXLPM, EXTERNAL, NONE] # # DISTANCE_SENSOR: # Tell PX4 which distance sensor peripheral to use. # Note: The sensor will be started on the RC port so it is only # really possible to use it when using external RC. # Options include: [NONE, LIGHTWARE_SF000] # # OSD: # Tell PX4 whether to enable OSD (on-screen display). # Options include: [ENABLE, DISABLE] # # DAEMON_MODE: # Tell PX4 whether to enable daemon mode. # Options include: [ENABLE, DISABLE] # # SENSOR_CAL: # Tell PX4 where to source sensor calibration information. # Options include: [ACTUAL, FAKE] # # EXTRA_STEPS: # Optional field that allows a user to define custom commands to be run by PX4 on boot. # Must be a valid bash array as seen below # Example: EXTRA_STEPS=( "qshell gps start" "qshell commander mode manual" ) # # GPS=AUTODETECT RC=CRSF_RAW ESC=VOXL_ESC POWER_MANAGER=VOXLPM DISTANCE_SENSOR=NONE OSD=DISABLE DAEMON_MODE=ENABLE SENSOR_CAL=ACTUAL EXTRA_STEPS=()

Thanks for the follow-up. Here’s more information based on your questions:

Initial Binding: Initially, I ran voxl-elrs --bind, and it connected successfully to the transmitter without any issues. It would automatically reconnect after each power cycle as expected. However, after a period of use, this new behavior started happening where it no longer connects automatically after rebooting.

Controller Reboot: Rebooting the controller has not resolved the issue. When the drone is powered on, the receiver’s LED stays solid rather than blinking slowly as it should when searching for the transmitter, and rebooting the controller doesn’t seem to initiate the connection.

Intermittent Connection: Interestingly, there are times when, if I power on the drone before powering on the controller, the connection will establish without needing to reboot the receiver. However, this is inconsistent, and I still often have to physically unplug and replug the receiver to get it to connect.

Possible Driver Issue: As you suggested, it does seem like the driver might be getting stuck in the search process at times. Here’s the output you requested from cat /etc/modalai/voxl-px4.config

Hopefully, this helps to pinpoint what might be causing the issue. Thanks again for your assistance!

M0173 VOXL 2 Front End - Pinouts for STM VL53L1CX Rangefinder

Jetson Nano — Mon, 28 Oct 2024 06:45:19 GMT

I have been following the development of the M0173 COAX connector board. I'm planning to integrate a Rangefinder with my existing setup consisting of VOXL2 compute for reliable height estimation in constrained environments.

At present I'm using the Image sensors from Starling 1 for my indoor flight requirements. I'm planning to upgrade to the new sensors(AR0144 Tracking, IMX412 - Hires with COAX connectors) with the COAX Cables.

I was checking for development of STM VL53L1CX rangefinder along with Flir Lepton (M0157 -1) board as well. I have few queries on this,

Is the development for M0157 - 1 complete and when would it be released? Along with the new MDK-M0173 product would M0157 module also be available for purchase along with that in future?

The M0157-1 uses a 8 pin JST-GH type connector MCBL-00105-1 for connecting between M0173 and the board itself. The schematics for this cable connector is not yet mentioned? Could you share the schematics?

GCS setup with Doodle Labs

user1243 — Thu, 03 Oct 2024 13:40:54 GMT

Hi, I currently have a Starling 2 Max with the ethernet and USB hub add on so that I can connect the Doodle Labs radio to it. I'm now at the point of setting up the ground station. These instructions say to use the Helix modem breakout board but I can't seem to find this part. Could someone let me know where I can buy it? Or are there alternative ways of setting up the GCS with the Starling 2 Max? Will take other suggestions.

Add-on boards with support for Doodle Labs

Moderator — Fri, 20 Sep 2024 22:47:16 GMT

We have updated our docs here: https://docs.modalai.com/doodle-labs-user-guide/#voxl-2-10-pin-usb-add-on-boards