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README.md

ExternGnss

Display smartphone GNSS data and external GNSS from a serial module via OTG. Show distance between the both fixes.

Used Libs

usb-serial-for-android as the OTG serial driver.

External GNSS module

For testing a Ublox NEO 8 was used with a FTDI FT232R. Just connect the TX/RX pairs and select 5V for the module.

Tip for USB-free ADB connection

  • connect the device via USB
  • set the adb server to network debugging: adb tcpip 5555
  • get the device IP address: adb shell ip addr show wlan0
  • connecy the device via network: adb connect ip-address-of-device:5555
  • verify the network connection: adb devices
  • unplug the USB cable from device
  • the device should still be attached via network to adb