how to make a Obstacle Avoiding Robot using Arduino uno and L293d with HC sr04 Sensor

Code and Schematics :- [ Ссылка ]

This information is processed by the Arduino, L293D motor control shield and ultrasonic sensor hc-sr04. If the distance between the robot and the obstacle is less than 20cm, the Robot stops and scans in left and right directions for new distance using Servo Motor and Ultrasonic Sensor. If the distance towards the left side is more than that of the right side, the robot will prepare for a left turn. But first, it backs up a little bit and then activates the Left Wheel Motor in reversed in direction.

Components Details () {
Arduino Uno:- [ Ссылка ]
4 wheel robot car kit:- [ Ссылка ]
sg90 servo motor:- [ Ссылка ]
L293D motor control shield:- [ Ссылка ]
Ultrasonic Sensor Holder:- [ Ссылка ]
ultrasonic sensor hc-sr04:- [ Ссылка ]
Female to Female jumper Wires:- [ Ссылка ]
18650 Battery Holder – 2 Cell:- [ Ссылка ]
18650 Battery Cell 3.7V x 2:- [ Ссылка ]
}

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