# Voxl2 GPIO linux control

Source: https://forum.modalai.com/topic/4534/voxl2-gpio-linux-control
Category: General Questions (https://forum.modalai.com/category/2/general-questions)
Posted: 2025-06-23 14:04:56 UTC by tonygurney
Replies: 0 · Views: 485

## tonygurney · 2025-06-23 14:04:56 UTC

Hello ModalAI Team,

I’m currently trying to test the output of GPIO pin 46 on the VOXL and haven’t seen any voltage change using a multimeter.

Here’s what I’ve tried so far:
echo 1 > /sys/class/gpio/gpio1146/value
echo 0 > /sys/class/gpio/gpio1146/value

I also tried using the VOXL utility commands:
voxl-gpio -w 46 1 and voxl-gpio -w 46 0

I have also check that the pin was set output

In all cases, there was no measurable voltage change observed on my multimeter.

Is there something I may be missing in the configuration, or is there an initialization step required for GPIO 46?

Thank you for your help!