This robot consists of a PIC 16F877A microcontroller interfaced with the motor controls of a DC gear motor. This microcontroller is responsible for decoding the correct control signals when given a control byte, and sending these control signals to the motor controls. In addition, to these two sensors are also connected to the microcontroller. These sensors are placed to measure temperature and humidity. Remote communication to the AMWR is accomplished using zigbee. The remote control module using zigbee is connected to a pc using a serial cable (RS-232) at baud rate 9600.In order to provide feedback from the robot; an android mobile phone camera is attached to the robot. A 2.4 GHz wireless link provided, along with the camera used to communicate with the controlling PC. PLC software running on the controlling computer is responsible for converting instruction given by a user into a byte code, and sending it to the zigbee module via db9 serial port of the PC.
The major objectives of the robot are embedded control of a robot, atmospheric condition measurements, zigbee based communication, live video feedback, and PC-based direction. Zigbee can penetrate walls and be used in places where a wired network is either not suitable or cannot be established. The advances in the wireless technology have made it possible to establish a network just by placing the communicating nodes at the required places and switching on the transmitters in them. It is possible to have great transfer rates even at long ranges. With such usefulness and many more features, a wireless network is the surely needed in places where it is not possible to establish a network using wires. Also, in case of cave-ins, or an explosion the wire may get damaged making the entire network useless.
