# Doodle Add-on board for VOXL2

Source: https://forum.modalai.com/topic/3687/doodle-add-on-board-for-voxl2
Category: ESCs, Sensors and Accessories (https://forum.modalai.com/category/15/escs-sensors-and-accessories)
Posted: 2024-07-29 16:49:43 UTC by dlee
Replies: 5 · Views: 1861

## dlee · 2024-07-29 16:49:43 UTC

Hello, 

I'm going to buy Doodle radios to attach to them on the Sentinel (VOXL2) drones.
A few months ago, I got "[VOXL 1 USB Expansion Board with Fastboot v2](https://www.modalai.com/products/m0078?_pos=2&_sid=21f1ad5c9&_ss=r) - M0078" on the ModalAI website.
But, you aren't selling them, now. So, what boards do I purchase for the doodle-voxl2 connection?  

I can find some options here.
1. VOXL 2 USB3.0 / UART Expansion Adapter ([link](https://www.modalai.com/collections/expansion-board/products/m0125?variant=47083939791152))
2. VOXL 2 I/O Expander Board ([link](https://www.modalai.com/collections/expansion-board/products/voxl2-io?variant=40610514206771))
3. VOXL 2 Ethernet and USB Hub Add-on ([link](https://www.modalai.com/collections/expansion-board/products/m0062-2))

Thank you

## Reply by modaltb (ModalAI staff) · 2024-07-30 15:31:39 UTC

@dlee 

You can use option 1:

Note, we've seen two connection types from Doodle (legacy and the newer one with multiple JST connectors).

We use this on another product of ours, and from USB3 port, MCBL-00085-1 should suffice:

![7e59c1c9-7779-46e3-b94a-36024fd0fe41-image.png](https://forum.modalai.com/assets/uploads/files/1722353434334-7e59c1c9-7779-46e3-b94a-36024fd0fe41-image.png)

## Reply by dlee · 2024-07-30 16:16:46 UTC (in reply to modaltb)

@modaltb Thanks a lot. It was really helpful.

## Reply by dlee · 2024-08-06 08:07:21 UTC (in reply to modaltb)

@modaltb Is it able to connect a doodle radio to voxl2 with a uart port?

## Reply by Vinny (ModalAI staff) · 2024-08-06 21:06:36 UTC (in reply to dlee)

Hi @dlee 
All of our Doodle configs are only using USB2, not UART.
Hope that answers your questions.
Thanks!

## Reply by dlee · 2024-08-07 02:20:59 UTC (in reply to Vinny)

@Vinny Thanks a lot.