With this app only, you can display lap time measurement using GPS, display speed and logging.

With the external Bluetooth GPS DG-PRO1, it is possible to measure very high precision and trace the line. You can buy DG-PRO1 from amazon.co.jp
https://www.amazon.co.jp/dp/B07LGQKXF6/ref=cm_sw_em_r_mt_dp_U_WLCjCbBRS89HM

# When measuring lap time with app only
1. Open Drogger settings.
(Please swipe down the meter screen. The gear mark at the top of the screen is "Drogger settings".)
2. Select [Lap time].
3. Enable [Prioritize GPSLap Sensor].
4. Please read the following article and add the circuit.
http://drogger.hatenadiary.jp/entry/2018/11/07/180351

Please see the following for app details.
http://drogger.hatenadiary.jp/entry/2017/10/16/091101


Note: If you using "Drogger GPS", an external GPS app for Android, this app start "Drogger GPS service "automatically.
https://play.google.com/store/apps/details?id=jp.bizstation.drgps

Using an optional sensor unit, you can log engine RPM, wheel speed, water / oil temperature, air temperature, suspension stroke, throttle position, A/F value, voltage and so on.
Information of the sensor connected to the sensor unit is transmitted to Android by Bluetooth, and display / logging is done with this app.

More detail...
https://www.bizstation.jp/en/drogger/
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What's New

Ver 107
- Fixed a bug that white theme do not works.

Ver 106
- Added setting guidance for Bluetooth stability.
- The setting items were reviewed..
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Additional Information

Updated
September 19, 2019
Size
3.7M
Installs
5,000+
Current Version
2.0
Requires Android
4.1 and up
Content Rating
Everyone
Permissions
Offered By
BizStation Corp.
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