Today many industries are using robots because of their high level of performance and reliability and that is a great help for humans. Obstacle Avoidance Robotics is used to detect obstacles and avoid collision. This is an autonomous robot. The obstacle avoidance robot design requires the integration of many sensors according to their task. The detection of obstacles is the primary requirement of this autonomous robot. The robot obtains information from the surrounding area through sensors mounted on the robot. Some detection devices used for detection of obstacles such as bump sensor, infrared sensor, ultrasonic sensor, etc. Ultrasonic sensor is more suitable for obstacle detection and is low cost and has high capacity capability. Arduino robot that can be controlled by a mobile android or tablet, with the help of an Android application that can be downloaded from the Google Play Store. The android application connects to the Bluetooth module and sends the desired commands.