How do you run a motor with L293D?

Place the L293D in the center of the breadboard, with half of the pins on either side of the breadboard. Connect 5V to Enable 1 , Vss , and Vs on the L293D. Connect digital output pins (we’re using 6 and 7) to input 1 and input 2 on the L293D. Connect your Arduino’s GND to both GND pins on the same side of the L293D.

How does Arduino L293D control DC motor?

Connect Vcc1 pin to 5V output on Arduino. Make sure you common all the grounds in the circuit. Now, the input and enable pins(ENA, IN1, IN2, IN3, IN4 and ENB) of the L293D IC are connected to six Arduino digital output pins(9, 8, 7, 5, 4 and 3). Note that the Arduino output pins 9 and 3 are both PWM-enabled.

How does a L293D work?

The L293D IC receives signals from the microprocessor and transmits the relative signal to the motors. It has two voltage pins, one of which is used to draw current for the working of the L293D and the other is used to apply voltage to the motors.

How do you control the speed of a DC motor?

Thus, the speed of a DC motor can be controlled in three ways:

  1. By varying the supply voltage.
  2. By varying the flux, and by varying the current through the field winding.
  3. By varying the armature voltage, and by varying the armature resistance.


How does L293D control motor speed?

Control the Speed of Two Motors



The L293D will send power to the motors depending on the voltage applied to the enable pins. The higher the voltage applied to the enable pin, the more power will be supplied to the motor, and the faster it will spin.

How does Arduino code control DC motor?

Arduino Motor Control Setup

  1. Connect 5V and ground of the IC to 5V and ground of Arduino.
  2. Connect the motor to pins 2 and 3 of the IC.
  3. Connect IN1 of the IC to pin 8 of Arduino.
  4. Connect IN2 of the IC to pin 9 of Arduino.
  5. Connect EN1 of IC to pin 2 of Arduino.
  6. Connect SENS A pin of IC to the ground.

How do you control speed and torque of a DC motor?

To control DC motors torque, a DC drive will regulate armature current. The armature voltage is unregulated allowing the motor to operate at whatever speed is necessary to achieve the set current /torque level.

How do you control the speed of a brushless DC motor?

Speed of a brushless dc motor can be controlled by controlling the input dc voltage / current. The higher the voltage more is the speed. Many different control algorithms have been used to provide control of BLDC motors. The motor voltage is controlled using a power transistor operating as a linear voltage regulator.

Can any DC motor be variable speed?

A: In general if you don’t do anything special to it, a DC motor will have variable speed. The main factors are the DC voltage applied to the armature coil and the amount of torque load you are trying to drive. In order to make it into a constant speed DC motor you have to have some sort of electronic feedback.

Can a DC motor turn both ways?

DC motors, like AC motors, can be configured to turn in either direction. Their direction can be easily controlled by inverting the polarity of the applied armature voltage by reversing the armature leads.

How do you drive a DC motor?

Quote from the video:
Quote from video: So using a half bridge you can change the duty cycle to change the energy input to the motor. And control the speed.

Which DC motor has variable speed?

For applications where variable speeds are necessary, typically an AC motor with an Inverter or brush motors are used. Brushless DC motors are an advanced option due to their wide speed range, low heat and maintenance-free operation. Stepper Motors offer high torque and smooth low speed operation.

How do you control the speed of a 24V DC motor?

The easiest way to control a relatively low current 12-24V motor is by using a generic analog DC motor speed controller. This type of controller has a potentiometer to vary the speed of the motor. These controllers can be found with a wide range of power ratings.

How do you make a variable speed motor?

AC motors are constant speed devices but their speed can vary if you change the input voltage or frequency or the windings that make the motor rotate. The most common and efficient way of changing the speed is to vary the frequency by using an inverter as the power supply.