2. ARDUINO UNO The Arduino uno is a microcontroller board based on the ATmega328. It has 14 digital Input / Output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16MHz ceramic resonator, USB connection, a power jack, an ICSP header and a reset button. It contains everything needed to support the microcontroller; simply connect it to computer with a USB cable or power it with a AC-to-DC adapter or battery to get started.

3. SG-90 SERVO MOTOR A servomotor is a rotary actuator that allows for precise control of angular position, velocity and acceleration. It consists of a suitable motor coupled to a sensor for position feedback. Servomotors are used in applications such as robotics, CNC machinery or automated manufacturing. A servomotor is a rotary actuator that allows for precise control of angular position, velocity and acceleration. It consists of a suitable motor coupled to a sensor for position feedback. Servomotors are used in applications such as robotics, CNC machinery or automated manufacturing.

4. Ultrasonic Sensor HC-SR04  Ultrasonic ranging module HC - SR04 provides 2cm - 400cm non-contact measurement function, the ranging accuracy can reach to 3mm.  The modules includes ultrasonic transmitters, receiver and control circuit.  The basic principle of work: (1) Using IO trigger for at least 10us high level signal, (2) The Module automatically sends eight 40 kHz and detect whether there is a pulse signal back. (3) IF the signal back, through high level, time of high output IO duration is the time from sending ultrasonic to returning.  Test distance = (high level time×velocity of sound (340m/S) / 2.  Ultrasonic ranging module HC - SR04 provides 2cm - 400cm non-contact measurement function, the ranging accuracy can reach to 3mm.  The modules includes ultrasonic transmitters, receiver and control circuit.  The basic principle of work: (1) Using IO trigger for at least 10us high level signal, (2) The Module automatically sends eight 40 kHz and detect whether there is a pulse signal back. (3) IF the signal back, through high level, time of high output IO duration is the time from sending ultrasonic to returning.  Test distance = (high level time×velocity of sound (340m/S) / 2.

5. Microcontroller (Arduino UNO) The Arduino Uno is a microcontroller board. It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz crystal oscillator, a USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started. The Uno differs from all preceding boards in that it does not use the FTDI USB- to-serial driver chip. Instead, it features the Atmega8U2 programmed as a USB-to-serial converter.

6. Design of dual Ultrasonic RADAR antenna & Design of rotating mechanism for antenna 1.At first Vero board is cut in small segment. 2.Socket pins are soldered to the board. 3.Multiple wires were soldered accordingly for two different sensors in such a manner to minimize the no. of wires. 4.Finally, two sensors were plugged to the corresponding sockets and the board was mounted on the SG-90 servo motor. 1.At first Vero board is cut in small segment. 2.Socket pins are soldered to the board. 3.Multiple wires were soldered accordingly for two different sensors in such a manner to minimize the no. of wires. 4.Finally, two sensors were plugged to the corresponding sockets and the board was mounted on the SG-90 servo motor.

7. Circuit diagram of DUAL RADAR sensor to Arduino

8. Circuit diagram