Read & Write Arduino from Android Using Kodular Via USB Serial Communication

Arduino with blynk app using USB Serial

Use usb-serial-for-android app to send data from your phone to arduino or any serial device

Control USB Serial ANDROID en ARDUINO

SHORT TEST - Android - Arduino Communication via USB Serial Connection

Android USB Serial Monitor and Plotter

Setting up OTG communication with MIT app inventor

Servo USB APP INVENTOR 2 Arduino at 115200 bauds