Materials

1 - 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 16 MHz ceramic resonator, a USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed to support the microcontroller and contains all the functions and the systems to control our robot

2 - LCD monitor = It was used as a feed-back, describing every function that the robot is doing.

3 - Ultrasonic sensor = It was used to avoid obstacles.

4- Line following sensor = We used two line following sensors, one on each side of the robot, to make it follow the black line on the floor.

5- Momentary Push-button Switch = We used four Momentary Push-button Switches to allow the operator to choose different pieces in different places.

6- RFID reader = Radio-frequency identification (RFID) is the wireless non-contact use of radio-frequency electromagnetic fields to transfer data, for the purposes of automatically identifying and tracking tags attached to objects. We used to read specific points during the track, avoiding any kind of mechanical contact.

RFID tag = The tags contain electronically stored information. They act as a passive transponder to emit microwaves or UHF radio waves. We used seven different tags to point the specific places where the robot must take different actions.

An RFID reader transmits an encoded radio signal to interrogate the tag. The RFID tag receives the message and then responds with its identification and other information. This may be only a unique tag serial number, or may be product-related information such as a stock number, lot or batch number, production date, or other specific information.

* Resistors = We used four resistors of 330 ohms to drain the power to the ground, avoiding the high signal to arduino.

7- Servo motor = This device is used to act as a hoist to toll the car containing the selected pieces.

8- H-brigde = we used two different H-bridge to control four wheels.

9- Battery(5V, 2.1 mAh) = We used a battery with 5V power on the arduino, LCD screen, the servo, as well all the sensors.

* Battery (9V )= We used the battery with 9V to power on the H-brigde  with de DC motors.

* DC motor = We used four DC motor to spin the wheels, giving movement to the robot.

* 4 wheels chassis = We used the four wheels chassis to support all the devices used in the robot.