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README.md
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README.md
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# ExternGnss
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Display smartphone GNSS data and external GNSS from a serial module via OTG. Show distance between the both fixes.
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## Used Libs
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[https://github.com/mik3y/usb-serial-for-android](https://github.com/mik3y/usb-serial-for-android) as the OTG serial driver.
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## External GNSS module
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For testing a Ublox NEO 8 was used with a FTDI FT232R. Just connect the TX/RX pairs and select 5V for the module.
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- [https://www.ebay.com/itm/165323481324](FTDI FT232R)
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- [https://de.aliexpress.com/item/4000597350406.html](Ublox NEO 8 GNSS)
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## Tip for USB-free ADB connection
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- connect the device via USB
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- set the adb server to network debugging: `adb tcpip 5555`
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- get the device IP address: `adb shell ip addr show wlan0`
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- connecy the device via network: `adb connect ip-address-of-device:5555`
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- verify the network connection: `adb devices`
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- unplug the USB cable from device
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- the device should still be attached via network to adb
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