# RPi /boot/config.txt

dtparam=audio=on
max_usb_current=1
dtparam=i2c1=on
dtparam=i2c1_baudrate=400000
dtparam=i2c_arm_baudrate=400000

# move RPi3 Bluetooth off of hardware UART to free up connection for GPS
dtoverlay=pi3-miniuart-bt