The IR receivers on Libre Computer boards are supported through the standard Linux Infrared Remote Control (LIRC) stack.
Below are some resources on setting up LIRC.
To get raw signals to quickly test the IR, run evtest.
Hello, I’ve been trying to get the IR receiver to work. Does it need to be enabled, like on the raspberry pi? I couldn’t find any documentation on what I would need to enable. evtest runs, but it doesn’t seem to pick up my remote.
Which board are you using?
The Le Potato AML-S905X-CC
This works out of the box. You need to select the right device with evtest.
I’m running evtest on a fresh install of Raspbian. It says that it’s testing and waiting for input, but pointing an IR remote at the receiver and pushing buttons yields no results.
You have to select the right device with evtest. Make sure your remote is IR and not some other protocol like BT.
/dev/input/event6, which is meson-ir.
The remote is the remote from an older television. It is definitely IR and not Bluetooth
It has to be a supported carrier frequency and remote code. Make and model?
CurtisMathes Tronics
- Do you know the remote works?
- How do you know it’s IR remote and not RF?
- Take your cell phone and check if you see anything when you press on the remote to check if it is IR. CMOS sensors are somewhat IR sensitive so you should see flickering if there’s a working IR LED in the remote.
The remote works to turn on the television it came with.
I know it’s IR because it’s an older remote and television from being IR was used in remotes, and also it has a bulb on the front and checking the bulb with my phone camera and pressing a button I can see it flashing in my phone’s camera app.
Test the voltage on the GPIO line from the IR. It should change with IR signal. Make sure you have all the keytables for IR enabled so it can detect as many protocols as possible.
How do I enable all the keytables for IR?