Lab#4

1. Using Motors with the Arduino

Lab 4a:

Procedure:

• Watch the video:

• Tutorial 05 for Arduino: Motors and Transistors (https://www.youtube.com/watch?v=5bHPKU4ybHY)
• Construct the breadboard circuit and implement the program presented in the video and Chapter 4 (pp. 65-69) of your textbook to control a DC motor via a distance controller

Lab 4b:

Procedure:

• Design a circuit and Arduino program that accomplishes the following:

• An IR distance sensor will detect the presence (through waving of a hand)
• A H-Bridge circuit with 9V battery power will control the direction of the DC motor as described in Chapter 4 (pp. 70-79) of your textbook.
• When a hand is waved over the IR sensor, the motor moves in one direction (simulating opening a door). There is a 2 second pause, and then the motor moves in the opposite direction (simulating closing the door).
• The motor stops until another hand is waved over the IR sensor again.
• Please video record demonstrating the operations of the circuit with a hand motion near the sensor. Show the motion of the motor in both directions along with the pause in between. Take a screenshot of the program and the circuit board.
• Send your code file (.ino) of the lab completed and operational as well for credit.

Analysis/Discussion:

• Explain the process you used in this lab to arrive at the final design of both the hardware and the software portions to achieve the design objectives.
• What aspects of the data sheets were critical in order to properly interface the Arduino to the H-Bridge and the DC motor?
• Although not required in this lab, describe how you might expand on this lab to minimize any possible false openings of the door.
• Submit your answers with your video of your circuit in operation, the code, and any computer screenshots during its operation.