I connected to knob via the 2.4GHz dongle to my PC. It works but I am having some issue with the battery life which is about 2 days.
Looking at the manual, it appears that the dongle does not enter sleep mode, which should consume about 2uA. However given my battery life, the device appears to consume about 4-5mA. I did another experiment and set the led color to green via the software. The led never turned off, even though I unplugged the 2.4 GHz connector. (from the manual “Note: The Bluetooth/2.4G mode is to ensure wireless battery life. Therefore, the backlight will only light up when the connection is recognized. Wireless mode does not support constant light.“) So I guess this is anohter sign that the knob does not go into the sleep mode?
I also could not find a way to update the firmware. Therefore I would like to ask for some help here since I wanted to use the knob wirelessly.