No Readings on Raspberry Pi 4 GUI

[jkchien]

I've tried multiple modes (v3, BLE, and WiFi AP), and up till this point, I can only get readings from the WiFi AP mode. According to the documentation, in v3 mode, connected to a Raspberry Pi, it should be ready to run after I install and run the GUI successfully on the Raspberry Pi. I think this Processing 3 code is just the GUI, so it shouldn't affect the readings anyways.