# Need 2 GPI interrupt inputs on VOXL 2 Mini

Source: https://forum.modalai.com/topic/4381/need-2-gpi-interrupt-inputs-on-voxl-2-mini
Category: VOXL 2 and VOXL 2 Mini (https://forum.modalai.com/category/26/voxl-2-and-voxl-2-mini)
Tags: voxl-2-mini
Posted: 2025-04-28 15:14:26 UTC by dougmiller
Replies: 1 · Views: 542

## dougmiller · 2025-04-28 15:14:26 UTC

Hello,

We are designing a system that needs to respond to two external digital signals, ideally generating an interrupt. J10:7 PGIO_64 is designated for interrupt, but I don't see a second such designated pin. In a separate post I see mention of GPI_46 on some versions of the VOXL 2, but nothing for the Mini. Can I configured GPI_46 to generate an interrupt in the VOXL 2 Mini? Or other recommendations?

## Reply by Vinny (ModalAI staff) · 2025-04-29 17:59:36 UTC

Hi @dougmiller 
If your VOXL 2 Mini is TrustZone Configured for UART over J10, then yes, there are 2 pins available as inputs.
https://docs.modalai.com/voxl2-mini-connectors/#j10---external-uart
You can see GPIO_40, GPIO_46 and GPIO_64 are input capable.
GPIO_40 and GPIO_64 are able to be configured to do wake events in the SoC so they have extra configuration to route to a power manager. Depending on how you write your IRQ routine, that may or may not help.
Hope this helps!