Easy to Build Nodemcu ESP8266 Robot Car controlling with Android via WiFi

Tutorial : https://www.instructables.com/id/Arduino-Robot-Car-Bluetooth-Controlled-and-Program/

This app is designed to make it easy for you to build a basic Wifi robot car. The app allows you to control an ESP8266 based robot car over Wifi (on AP/STA mode), and also you can upload Arduino sketch/code directly from your Android phone to ESP8266 via USB OTG or Wifi OTA (Over-theAir).\n\nPlease be advised that this app contains ads and potential in-app purchase to improve next app development.

Features:

- Simply remote control interface

- Upload firmware via USB OTG or WiFi OTA directly from Android phone

- Remote control mode

- Obstacle avoidance with servo mode

- Line follower mode

- Object follower mode

- Available Arduino source code