Just got my hands on a RAK4630 with a 5005 running the meshtastic kit. I have done nothing but take it out of the packaging, plug in the antennas, and plug it into USB. Best I can tell its functioning, but I haven’t done anything with it one way or another. As such no problem with that.
However, I’m noticing a curious audible high frequency whine coming from the device at regular intervals. I’d guess it’s from whenever there’s a spike in power draw since it coincides with the LED lighting up. It’s not especially loud, but I can hear it easily enough when it’s sitting on my desk (~18 inches from ears?).
So, my question(s): is this normal? Has anyone else observed this noise and/or pinpointed where it’s coming from specifically? Assuming it isn’t indicative of some other issue, it’s not actually a problem, especially if it’ll live in a case. More so just a curiosity to me.
Otherwise, I’m quite a fan of what I’m seeing so far.