quiz 1 computer interface motors

what is a DC motor

A motor that converts electrical energy into mechanical energy through magnetic fields and current

What power source do DC motors typically require?

Battery pack or external power supply

What is a key component required to control a DC motor with an Arduino?

Motor driver circuit

What is the maximum bidirectional drive current for the L293D motor driver IC?

600 mA

What is the purpose of an H-Bridge in motor control?

To allow the motor to be driven in both directions

Which function in Arduino code is used to set pins as OUTPUT?

pinMode

What is the maximum PWM value used for motor speed control?

255

what happens when the ENABLE pin on the L293D IC is set to LOW

motor stops

what is a stepper motos

A motor that converts electrical pulses into discrete mechanical movements

What is the typical step size for a 200-step stepper motor?

1.8

Which library is used in Arduino to control stepper motors?

stepper

What does the variable stepsPerRevolution represent in the Stepper motor code?

number of steps for one full revolution

What type of control system do stepper motors typically operate in?

open-loop

What is holding torque in stepper motors?

The torque that maintains the motor's position when no movement is required

Which library is required to decode infrared signals in Arduino?

IRremote

Which device is used to receive infrared signals from a remote control?

IR receiver module

What is the role of the translateIR() function in the infrared remote control program

To interpret received IR signals into commands

Which remote control protocol is commonly used in Arduino projects?

NEC

Which signal modulation technique is used to avoid interference in IR communication?

Signal modulation

What does the rotary encoder do in motor control applications?

Converts rotational motion into digital signals

What is the purpose of the attachInterrupt function in a rotary encoder program?

To monitor when the rotary encoder is rotated

Which function is used to send PWM signals in Arduino to control motor speed?

analogWrite

What value does analogWrite function expect to control PWM?

0 to 255

What is the maximum drive voltage for the L293D motor driver?

36v

In the stepper motor program, what does myStepper.setSpeed(15) do?

Set the motos speed to 15 RPM

In the IR receiver program, what is the main purpose of the irrecv.resume() function?

to resume receiving the next IR signal

which of the following does not require feedback to control position

stepper motor

what happens when both switches S1 and S4 are closed in an H-Bridge circuit

motor rotate forward

which pins on a rotary encoder are responsible for detecting direction

PinA and PinB(?)

what is the typical step size for a 360-step stepper motor

4(?)