GPIO IR Receiver Setup - UP4000

PimpDiCaprio

Hello all,

I have search the forums and all over the internet for an answer and have found nothing. I am attempting to set up a simply IR Receiver for use in a python program I am working on. I have tried setting it up through LIRC, through serial connection on each UART pin and have gotten nowhere. If anyone else has any input to help me get this working it would be greatly appreciated.

Board: UP4000
OS: Ubuntu 22.04
IR Receiver: DF Robot (DFR0094)

HarryChiu

Hi @PimpDiCaprio

The IR receiver uses 5V, and the UART uses 3.3V.
The voltage levels are different and cannot be used.

Best Regards,
Harry Chiu

PimpDiCaprio

As helpful as it is to rule out UART as a possible input for the IR receiver, it doesn't help with actually getting the IR setup and functioning.

It was my understanding that this board was supposed to be similar to the Raspberry Pi in functionality, but when it comes to setting up a simple IR receiver I am at a complete loss. On the Raspberry Pi it is as simple as opening /boot/config.txt and assigning gpio-ir to a specific gpio, but there is no documentation on how to accomplish this with the UP4000.

It would be greatly appreciated if someone were able to provide some insight on how to set this up.

HarryChiu

Hi @PimpDiCaprio

I checked the spec of Digital IR Receiver Module (SKU:DFR0094).
https://mm.digikey.com/Volume0/opasdata/d220001/medias/docus/2139/DFR0094_Web.pdf

I didn’t see the signal level from this spec.
Our HAT40 currently only accepts 3.3V.

Best Regards,
Harry Chiu