08-10-2021, 10:42 PM
That light shows the TxRx activity of the Serial port of the MCU controlling the device. It holds no bearing on any of the MIDI communications on the MRCC. The NDLR has one too, and I'm constantly having to tell people it's not sparks shooting out of the machine (which is a perfectly viable fear, mind you, just not what is happening here).
Jesse
Jesse