What is an L293D chip?

The L293D is a popular 16-Pin Motor Driver IC. As the name suggests it is mainly used to drive motors. A single L293D IC is capable of running two DC motors at the same time; also the direction of these two motors can be controlled independently.

What is L293D motor driver board?

The L293D is a popular motor driver IC designed to provide bidirectional drive currents of up to 600-mA at voltages from 4.5 V to 36 V. This can control 2 DC Motors, their direction using control lines and their speed using PWM. Features. Wide Supply-Voltage Range: 4.5 V to 36 V. Separate Input-Logic Supply.

How do I use the L293D motor driver module?

You’ll need an Arduino UNO to control the motor driver.

1. All the Enable pins are connected to the 5V pin on the Arduino.
2. Ground Pins should be shorted and connected to the Gnd pin on the Arduino.
3. +ve side of the battery should be connected to pin 8 of the IC and the -ve to the Gnd of Arduino.

What is the function of the L293D for MC DC motor control?

L293D is a dual H-bridge, high current motor driver Integrated Circuit. It acts as a current amplifier as it takes a low current input signal from the microcontroller and provides high current output to the motor.

How many motors can a l 293 motor driver control?

two motors
The L293D is a dual-channel H-Bridge motor driver capable of driving a pair of DC motors or one stepper motor. That means it can individually drive up to two motors making it ideal for building two-wheel robot platforms.

How many ground pins are in L293D IC?

16 Pins
L293D has 16 Pins in total which are as follows: Pin # 1 is Enable 1 which is used to turn ON or OFF the first H-bridge. Pin # 2 is Input1, which is the first Input for Motor1. It should be connected with a Microcontroller.

How do you power a L293D motor shield?

Start by plugging the shield on the top of the Arduino. Next, connect power supply to the motors. Although you can connect DC motors having voltages between 4.5 to 25V to the shield, in our experiment we are using DC Motors that are rated for 9V. So, we will connect external 9V power supply to the EXT_PWR terminal.

How do I connect my Arduino to L293D?

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 motor driver chip work?

Motor drivers acts as an interface between the motors and the control circuits. Motor require high amount of current whereas the controller circuit works on low current signals. So the function of motor drivers is to take a low-current control signal and then turn it into a higher-current signal that can drive a motor.

What happens when en1 pin of L293D is enabled?

L293D IC Pin Out There are 4 INPUT pins, 4 OUTPUT pins and 2 ENABLE pin for each motor. Pin 1: When Enable1/2 is HIGH, Left part of IC will work, i.e motor connected with pin 3 and pin 6 will rotate.

Why does the L293D have two ground pins?

Multiple pins are used for heat sinking when the extra thermal conductivity is needed. However the amount of heat may not justify such a heat sink when adding a few extra pins will do the job.

What is the advantage of interfacing DC motor with 8051 microcontroller?

The main purpose of DC interfacing with 8051 microcontroller is for controlling the speed of the motor. The DC motor is an electrical machine with a rotating part termed as a rotor which has to be controlled.