Android application lets you configure and calibrate soil moisture sensors your device.
When installing application you have to allow application to use your phone’s USB port.
You need USB-OTG connector - adapter in your phone side - Micro-USB or USB-Type-C and Micro-USB charging cable to connect device to USB OTG phone adapter.
Before connecting to your phone you have to remove battery from device to reset device.
After connecting device android phone will ask you to allow connect to USB, approve it.
Wait while application shows USB Connected in main page.
Click read in main page to read sensor values.
Switch to settings tab to setup your device