Microprocessor Systems Engineering – Week # 4 Lab 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:

o An IR distance sensor will detect the presence (through waving of a hand)

o 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.

o 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).

o 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.

Rules for lab submissions:

1. The lab document must be a Word document. PDF files are NOT accepted.

2. All screenshots must be included.

3. All Multisim screenshots must include the date/time stamp. See TOOLS AND TEMPLATES for the procedure to display the date and time.

4. Any and all Multisim files must be submitted.

5. Any equations used must be typed in Word. Copy and paste of equations from outside sources is prohibited.

6. No graphics are allowed in the Word document other than screenshots of circuits from Multisim and hardware if applicable, with the date/time stamp.

7. The lab template should be used. Specifically, it is brought to your attention that a summary MUST be provided explaining the results of the labs, the relationship of the results to expected results, and any challenges encountered.

8. Hardware portion of labs should include screenshots of the assembled circuit with your name and student GID number written on paper next to the circuit. There should be screenshots of the instrument readings with the date and time stamp on lower right corner clearly shown.

Any violation of the submission rules above will result in a grade of 1.

Grading Criteria	Maximum Points
Meets or exceeds established assignment criteria	40
Demonstrates an understanding of lesson concepts	20
Clearly presents well-reasoned ideas and concepts	30
Uses proper mechanics, punctuation, sentence structure, spelling and APA structure	10
Total	100