micromouse maze solving robot chang yuen chung universiti ...

153.4.1 Stepper MotorsFigure 3.3 Stepper MotorsStepper motors have been chosen as the actuators for the robot because of thestepping effect of the motor. This can easily for counting the movement for the robotin terms of distance inside the maze. Two units of LINIX 42BYGHD439 steppermotors will be used with hold torque of 2.5kg.cm and step angle of 1.8 degree/step.Figure 3.3 shows a pair of stepper motors being used in the project.3.4.2 SensorsFigure 3.4 Analog Distance SensorSensor was like the eye for the robot and it is important when exploring forthe maze. Research found that using normal IR sensor might cause problem whileexploring the maze due to the environment infrared intensity. So in order to avoidthis problem, analog distance sensor had been chosen. This sensor had been choosebecause it can only receive the signal with frequency emit by it own self without alter