LAB 3 Objective:
LAB 3
Objective:
Use Tinkercad to construct a circuit that controls the rotation of a DC motor.
Equipment:
Tinkercad (www.tinkercad.com)
Procedure:
1. To perform this lab, please go the Tinkercad
...
LAB 3 Objective:
LAB 3
Objective:
Use Tinkercad to construct a circuit that controls the rotation of a DC motor.
Equipment:
Tinkercad (www.tinkercad.com)
Procedure:
1. To perform this lab, please go the Tinkercad tutorials first. The tutorials are provided
under the "Tinkercad" content area posted on the Blackboard.
2. The start of the story: You and your team are building a robotic arm that consists of a
DC motor rated at 16530 RPM (this is the model of the DC motor that exists in the
Tinkercad library).
Figure 1: Block diagram of the control model3. Create a new Tinkercad project in your provided account, and title it "Lab 3 - DC
Control"
4. Build a circuit based on the block diagram shown in Fig. 1. This is the Tinkercad model
of the situation presented in step 2. Here is more information on what an H-Bridge motor
controller is: https://blog.digilentinc.com/what-is-an-h-bridge/.
5. Write a general code for the Arduino Uno R3 to run the DC motor at any desired RPM
(speed). This means that:
a. The Arduino takes an integer input from the Serial Monitor and converts it to its
corresponding PWM (Pulse-Width Modulation) number using the "map()" function.
b. It then sends this PWM number to the DC motor using the "analogWrite()" command
through the H-Bridge driver.
Question 1: What do you think is the maximum PWM value? Why? Please explain in detail.
c. The result is that the DC motor rotates at an RPM of approximately the input integer
(the RPM is shown on the rotating motor).
The input integer and the PWM number sent to the H-Bridge should be displayed in the
Serial Monitor
LAB 5
Objective:
Use Tinkercad to advance the control of DC Motors using sensors.
Equipment:
Tinkercad (www.tinkercad.com)
Procedure:
~Part I~
1. Duplicate your Tinkercad project from Lab 3 and rename the duplicate to "Lab 5: Drill".
This part will be done here.
2. The story comes to a halt: You and your team conclude that this motor rotates at
very high RPM values, and therefore it may not be a good fit for a robotic arm; especially
that the motion of the motor is continuous. Thus, you decide to use what you have built for
another application: an automatic industrial drill.
3. Revise your circuit based on the block diagram shown in Figure 1.
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