METHODOLOGY

This project is divided into two parts. First is the hardware design and second is the software design. This project activity must be done step by step. It begins with searching and collecting information from scientific perspective. The review is about mechanical structure design, body, tyre, and motor, electronic circuit design, sensors and actuator, also software programming implementation. The project was begun by finding the concept and idea related to this title.

The robot depending on how it will be programmed should implement all the behaviours like moving, picking fetching and so on successfully next proceed research on electrical part and mechanical design. A survey concerning prices, availability, and choices had been done on the components that will be used.

The circuitry, data sheet and others information were gathered, seeking for the most appropriate selection of components. Then, research on mechanical design where how does base, and others mechanical part look alike. Just after completing the design of mechanical and electronic parts, it proceeds to build and construct the Printed Circuit Board for the electronic circuit followed by developing the software in C programming. Trouble shoot will always be done as long as there is an error in final testing to get the final product.

By using proteus as simulation software, I design the circuit diagram to run the program in PIC by refer to our own block diagram.  In our block diagram, there have two inputs such as sensor A and sensor B. Both input are using infrared sensor that is detect the obstacle only 7 cm of length.  The PIC that we used is PIC16F877A as a CPU that connecting at switching circuit (L293B) to drive the Outputs.