Posts made by Vinny

Sorry @Jetson-Nano , this is not my area of expertise (anything software related, I'm just hardware). Hopefully someone else from the SW team can respond shortly for you.

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

Hope that helped!

Hi @Jetson-Nano
Let me try to clarify to help:
The "-3" Plug in board variant https://www.modalai.com/collections/expansion-board/products/voxl-microhard-modem-usb-hub does this:

• Power to MH Modem, USB Interface, USB Power to Downstream Peripherals, and interfaces all through the J3 interface to VOXL 2

However, the "-2" Standalone Module https://www.modalai.com/collections/modems/products/mdk-m0048-2

• brings only USB over the J7 4-pin USB Interface .
• There is not enough power over that VBUS to power the MH Module and downstream peripherals. That is where the red 2-pin JST J8 comes in... That connector provides power to the MH radio AND power to Downstream USB devices.

So, if you originally had a -1 variant that you plugged into VOXL 2's J3, and you want to remove that interface, you will need to switch over to the -3 hardware variant product.

I think that was the info you were looking for and I hope I clarified that for you.

Hi @Jetson-Nano
If you do not use the J3 from VOXL 2 to power your Microhard that is the "-1" variant, you cannot power peripherals. You'll need to use the -2 variant with the red connector: https://www.modalai.com/collections/modems/products/mdk-m0048-2

VBUS in to the MH is not used for powering downstream USB VBUS ports.

Hi @Jetson-Nano
Can you elaborate what you mean by "main" vs "aux"?
We provide 8 channels of PWM as you may know. Are you asking if we provide more than 8 natively?

Hi @FIREBIRD
I answered on your other post: https://forum.modalai.com/topic/4098/power-module

Hi @FIREBIRD
Our standard power module is the same for VOXL 2 and VOXL 2 Mini. We just change the voltage settings.
Here is the link and the best we have is a PCB step file for this design (board only, no cables):
https://docs.modalai.com/power-module-v3-datasheet/

Hope this helps!
Thanks!

Hi @Jetson-Nano
I think that can work. As long as your UART matches the voltage levels indicated here: https://docs.modalai.com/voxl2-connectors/ Voxl 2 does not know (or care) which carrier board you are using.
However, we cannot speak to the quality of that carrier board and if it can provide you all the features you desire, but we trust you know this already as a seasoned user

Hi @olearypa
I suggest trying it on this board first: https://www.modalai.com/collections/expansion-board/products/m0062-2
That socket is a UFS/uSD combo mode socket and has the UFS signals on it: https://docs.modalai.com/m0062-datasheet/#j7---usdufs-combo-card-slot

Hi @Peter-Milani
Yes, M0173 requires both J6 and J7 to operate as designed.
The uCoax connectors are from Hirose as documented here: https://docs.modalai.com/micro-coax-user-guide/

Hi @Hung-Pham
None of our image sensors have an EEPROM on them.
However, the I2C device address of the IMX412 on M0107 is 0x1Ah
Hope this helps!
Vinny

Hi @Jeremy-Frederick @valvarez
ModalAI has not designed any power supply reference voltages on JST connectors as a REF or Power Tap Off as capable of powering servos.
If you wish to power micro-servos then please do so at your own risk. However, you may likely damage your ModalAI hardware since we do not have any back EMF/Stall/Load dump protection on any of our JST connectors.

Servos need to have their independent supply from your system battery.
Apologies we have not made that clearer in our Tech Docs.

Thanks!

Hi @Zachary-Lowell-0 , @valvarez
ModalAI has no design capable of powering servos directly.
Every servo requires independent power.

Thanks!

Hi @cobbp
It's the 2.96V directly from the Snapdragon PMIC as you noted, and SD Cards from UHS I and onward negotiate their link speeds and I/O voltage. So, a proper 1.8V SD card will internally use that 2.96V and create the 1.8V I/O rail.
For cards that operate at "3.3V", they are claimed to be supported in the Snapdragon chipsets at this lowered ~3V rail.
The slot on M0062 actually accepts UFS or uSD.

For more details on just the SD portion, please see this design where we opened our Schematics. In this case, this is just uSD, but otherwise matches the M0062 exactly for uSD functionality: https://docs.modalai.com/voxl2-dev-test-board/

Hope this helps!

@Hung-Pham said in Pinout Description of Image Sensor 4k High-resolution for VOXL (MSU-M0024):

• what is the frequency of pin CAM_MCLK0_BUFF?
• Can I change the frequency of pin CAM_MCLK0_BUFF?

Thank you!

Most MCLKs are 24MHz.
No, unless you build the kernel on your own. It is not something we will be able to do by default. However, a few customers have contracted with us to do custom driver work.

Thanks!

HI @v_v_ramarao
Appreciate your feedback again. Should you wish to design any of your own adapters until ours are released, always reach out and we are happy to do any design reviews for you! It's a service I do as a thanks for your continued support.

Hi @Hung-Pham
Can you please share more details of your setup?
Pictures, hardware components, and other relevant configuration will help along with versions of all your SW using "voxl-version". From there we can see if I can help, or I need to pull in someone from SW team.
Are you using ModalAI based RB5 platform? We do not maintain third party support of other RB5 platforms.

As a reminder, here are our supported camera configs: https://docs.modalai.com/voxl2-supported-architectures/

Hi @groupo
I bumped this thread internally for you. Hopefully someone responds soon.
Sorry for the delays and thanks for your patience.

Hi @v_v_ramarao

(Talking of PCB layout one more thing needs your immediate attention. On Voxl2 mini with J6 and J7 one has to use your interposer (splitter) board, in which case you can't use that respective main board-mounting hole... It fouls. This is the case with either of the interposer boards, single /dual.. It is road-block to use even a single camera with mini. It is very surprising that the spitter boards are not redesigned yet... A minuscule task to address such a glaring fault, is not undertaken yet)

Thanks
Rama Rao

We appreciate your comments.
Please understand a few things about our one of our primary business models and goals. We help accelerate customer's time to market with their products, for their use case, by offering hardware and software solutions that let them develop and solidify their architectural needs. Then, when they have what they need functioning, they transition that into their custom final and elegant Industrial Design that meets their product constraints. Most often, this does not include any of our adapters, flexes, or cables. We cannot meet most customer's final goals, so oftentimes we just use what already works to meet those development goals and help you along. This is akin to any EVK/DK you buy now for any MCU, sensor, or auxiliary component when doing proof-of-concept work. In this case, yes, we know the camera splitters and adapters are not ideal for V2 Mini. They were designed for VOXL 2 (full size), not the Mini, but they function and help customers accelerate their plans. This is not an oversight nor a fault.

All that being said, VOXL 2 Mini is getting a refresh:

and we do expect volumes to pick up this next year, so we are making more adapters specifically for VOXL 2 Mini.
For example, we already have in our labs and functioning the equivalent to this coax breakout kit but for M0104/M0204: https://www.modalai.com/collections/image-sensors/products/m0173?variant=48528274391344
but we are just not ready to release it yet, even in Beta status.
We also have a single 40-pin + DF56 coax adapter (M0172) and ones for IR sensors on the horizon for VOXL 2 Mini. However, again, these are not just ready yet but expect to be live in the next couple of quarters.
These may be more suited to some customers applications since they better mate with V2 Mini and the mounting hole support.

We appreciate your feedback and let us know if there is anything we can do to help!
Thanks!

HI @TomP
Please remove all products off of the ESD static bags.
This bags are only used for unpowered storage/shipping when outside of a controlled ESD Work Area.
This site has a few good books you can try to pick up so your team is well prepared for ESD handling: https://www.techni-tool.com/category/Static-Protection/ESD-Training-And-Awareness-Materials