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 # ExternGnss
 
+Display smartphone GNSS data and external GNSS from a serial module via OTG. Show distance between the both fixes. 
+
+## Used Libs
+[https://github.com/mik3y/usb-serial-for-android](https://github.com/mik3y/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.
+- [https://www.ebay.com/itm/165323481324](FTDI FT232R)
+- [https://de.aliexpress.com/item/4000597350406.html](Ublox NEO 8 GNSS)
+
+## 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