# M0201 gimbal passthrough pinout

Source: https://forum.modalai.com/topic/4673/m0201-gimbal-passthrough-pinout
Category: General Questions (https://forum.modalai.com/category/2/general-questions)
Posted: 2025-08-13 14:08:19 UTC by jon
Replies: 3 · Views: 1167

## jon · 2025-08-13 14:08:19 UTC

Hi, what is the order of the pins for the i2c passthrough on the M0201 board? Assuming something like 5V - SCL - SDA - X - X - GND, but would just like to ask to make sure. I don't believe it's documented anywhere either

## Reply by smiley · 2025-12-08 14:19:58 UTC

Currently facing the same challenge, since I would like to make the changes according to the guide: https://docs.modalai.com/M0153/

@jonathankampia did you figure the pin order out? Or maybe @Alex-Kushleyev could assist us here? :)

Thanks for the help already in advance!

## Reply by Zachary Lowell 0 · 2025-12-08 16:47:50 UTC

@jonathankampia said in [M0201 gimbal passthrough pinout](/post/23445):
> M0201

https://forum.modalai.com/topic/4735/m0201-m0153-j2-pinout/3

Please refer to this post for the pniout guide on the m0201

## Reply by Alex Kushleyev (ModalAI staff) · 2025-12-08 21:33:43 UTC (in reply to Zachary Lowell 0)

@Zachary-Lowell-0 and @smiley ,

I just updated the docs to include more info on this https://docs.modalai.com/M0153/#misc-connector-pinout

Also verified that i could ping a i2c device connected to M0201 J4 and M0201 itself is connected to VOXL2 J7 via M0181 (there are other options how to connect M0201 to VOXL).

IMU -> [JST GH cable] -> (M0201 J4) .... (M0201 J2) -> [MIPI COAX cable] -> (M0181 J1) .... (M0181) -> (VOXL2 J7)

```
voxl2:/$ i2cdetect -r -y 4
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00:          -- -- -- -- -- -- -- -- -- -- -- -- -- 
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
30: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- 
60: -- -- -- -- -- -- -- -- 68 -- -- -- -- -- -- -- 
70: -- -- -- -- -- -- -- --
```

(able to ping an i2c IMU board connected to /dev/i2c-4).

Please let me know if you have any additional questions.

Alex