fix baud rate for USB Serial

Author: Tekunalogy

examples/bno08x_simpletest_uart.py

@@ -12,11 +12,11 @@
 
 # uncomment and comment out the above for use with Raspberry Pi
 # import serial
-# uart = serial.Serial("/dev/serial0", 115200)
+# uart = serial.Serial("/dev/serial0", 3000000)
 
-# for a USB Serial cable:
+# for USB Serial (via FTDI cable):
 # import serial
-# uart = serial.Serial("/dev/ttyUSB0", baudrate=115200)
+# uart = serial.Serial("/dev/ttyUSB0", baudrate=3000000)
 
 bno = BNO08X_UART(uart)