Added additional Troubleshooting point

[Serzhs]

I attempted to configure my LED panel along with a DHT22 sensor on my Raspberry Pi 1 B. However, I encountered an issue where the DHT22 sensor failed to provide any data whenever the LED panel was enabled. This predicament had me puzzled for quite some time. Fortunately, I eventually identified the root cause, which brought me a great sense of relief. Consequently, I submitted a pull request to ensure that fellow developers do not encounter a similar problem in the future.

My project:

[hzeller]

So was this something that didn't work on a say Raspberry Pi 3 but worked on a Pi 4 ?

When reading that you connected a sensor it sounds like you might've used GPIO pins that were used in by the panel (and which you then would use to route to pins in the hardware-mapping.c)

[Serzhs]

@hzeller I initially used a super old Raspberry Pi 1, and it didn’t work. However, when I tried the same thing on a Raspberry Pi 3, it worked automatically.