L293d is one of the most popular drivers in the market. It can drive 4 dc motors on and off, or drive 2 dc motors with directional and speed control. Interfacing dc motor with atmega32 avr microcontroller. You can find it in many toys such as rc cars, helicopters etc. It means that you can control two dc motor with a single l293d ic.
To understand the working of l293d, we first need to know about a component called hbridge. L293d is a 16 pin ic which can control a set of two dc motors simultaneously in any direction. L293d motor driver ic l293d, is a motor driver ic which allows the motor to drive on either direction. There are several reasons which make l293d the preferred driver to the users, such as, cheap price compared to other drivers, proper shape and size, easy control, no need for protective circuit and diodes, no need for heat sinks and good resistance to temperature and highspeed variations. Although ive only used 1 motor, it is possible to use 2 motors on a single l293d chip, of course you then have to compensate on the current accordingly to ensure enough juice for both motors under peak load. As the shield comes with two l293d motor driver chipsets, that means it can individually drive up to four dc motors making it ideal for building fourwheel robot platforms. The l293 pinout diagram is as shown in the picture below. I am going to use channel1 of l293d motor driver ic. When you feel everything is right but the circuit is still not working, just tighten the motor driver chip on the breadboard. Depending on this 4 pin combination your motor will run. L293d motor driver shield for arduino open impulseopen. Driving dcmotor in both directions forward and reverse. You can connect second dc motor to driver pair 2 according to your needs. This video is a detailed explanation on l293d motor driver ic.
L293d is one of the most popular motor drivers to run dc motors with up to 1a current load. The l293d pinout diagram is as shown in the picture below. We can control 4 motors with the shield so there are two l293d ics used. It can simultaneously control the direction and speed of two dc motors. Pin description of stepper motor circuit diagram for stepper motor control using uln2003 module. Motor driver l293d driver module is a medium power motor driver perfect for driving dc motors and stepper motors. Stepper motor drivers dc motor drivers latching relay drivers. Check out a some projects related to l293d h bridge motor controller and 89c51, arduino and stm32. Connect this with 4 pins of your micro controller and give supply to ic to drive motor. The l293b and l293e are quad pushpull drivers capable of delivering output currents to 1a per channel. The l293 and l293d models can drive current up to 1a and 600ma respectively. Motor drivers can be connected to the microcontroller to receive commands and run the motor with a high current. In the tutorial introduction to l293d, i have shared all the necessary details about l 293d motor controller driver which includes its pinout diagram, applications, features, functional and logic diagram, packages etc.
L293d is a 16 pin motor driver ic consist of quadruple half h drivers. L293d ic is a typical motor driver ic which allows the dc motor to drive on any direction. A motor driver is an integrated circuit chip which is usually used to control motors in autonomous robots. We think this shield would be a good start for beginners because of its versatility for its price range. Two phase motor driver, block diagram of l 293d application for two phase motor is given in the figure shown below. L293 and l293d h bridge motor driver ic pin out and working. L293d motor driver ic pinout, equivalent ics, features and. Buy l293d motor driver module online at the best price in. Thereby it is a suitable device for obtaining variable dc by controlling the motor speed. Each channel is controlled by a ttlcompatible logic input and each pair of drivers a full bridge is equipped with an inhibit input which turns off all four transistors. Connect all the components as shown in the diagram below when using uln2003. The l293 motor shield is a great and quick way to control dc motors, servos or even stepper motors. The input3 and input4 controls second motor in the same way as listed above for input a and b. This video is a small introduction to l293d dual h bridge dc motor driver ic with pin diagram.
L293d dc motor driver ic pin diagram and description. The l293d is a 16 pin ic, with eight pins, on each side, to controlling of two dc motor simultaneously. The l293d motor driver uses hbridge circuit configuration which outputs required current to motor. The driver is an interface circuit between the motor and controlling unit to facilitate driving. Two push buttons are used to select the direction of motor. How to interface two l293d motor driver ic with atmega8. T he h bridge circuit is for controlling low current rated motor. Arduino dc motor control with l293d motor driver ic youtube. It has the capability of controlling up to 2 stepper motors, 4 dc motors.
L293d motor shield is een zeer nuttige shield met standaard componenten. Before we get started you should understand that l293d motor driver have 16 pins with functions in anticlockwise direction as shown in the image above. In this tutorial, dc motor operation will be demonstrated with atmega16. The spinning direction of a motor can be controlled by applying either a logic high5 volts or logic lowground to these pins. L293 datasheet and pinout h bridge motor driver chip. Many diy kits are available in market to start working with l293d. This circuit is a basic circuit for understanding the way of l293d h bridge dc motor control with arduino. Below, youll see a pin diagram of the l293d note the location of each of the pins. The amount of rotation per step is determined by the motor structure.
Dc motor interfacing with avr atmega16atmega32 avr. Hbridge motor control circuit using l293d motor driver ic. Interfacing dc motor with atmega32 microcontroller. Dc motor interfacing with atmega32 and l293 microcontrollers lab. Interfacing stepper motor with avr microcontroller atmega16. We can drive two dc motors with one l293d, in this example we are using only the first pair of drivers to drive one dc motor. However, you need to know functions of every pins before it can work better for you. To interface the dc motor with a microcontroller we need to use a driver circuit or driver ic. In this tutorial we will interface 28byj48 stepper motor with atmega16 avr microcontroller using atmel studio 7. It means, by using a l293d ic we can control two dc motors. Both are pin to pin similar to each other, quad halfhbridge motor drivers, capable of driving high voltage motors using ttl 5v logic levels. Its just simple study l2938 it h bridge ic need to provide input q1,q2,q3 and q4. How to use l293d module motor shield with arduino make. L293d motor driver module arduino tutorial dc motor control.
Motor driver act as an interface between arduino and the motors. This is designed to provide bidirectional drive currents at voltages from 5 v to 36 v. L293d motor driver arduino robo india tutorials learn. L293d is a dual hbridge, high current motor driver integrated circuit. L293d motor driver ic l293d pin diagram working and. L293d datasheet and pinout h bridge motor driver shield. L293d is a motor driver 16 pin ic which can be used to run a set of two dc motors at a time. Pins on the left hand side of the chip are for controlling second motor. L293d motor driver shield for arduino this motor driver shield is based on l293d motor driver chip which is designed to provide bidirectional drive currents of up to 1. L293d is used in many circuits, it is popular in toy industry.
Pin 1, 1,2en, enable driver channels 1 and 2 active high input pin 2,7,10,15, 14a, driver inputs, noninverting pin 3,6,11,14, 14y, driver outputs pin 9, 3,4en, enable driver. A microcontroller alone cannot provide adequate current for operating a dc motor. This ic consists of 16pins which are used to control a set of two dc motors instantaneously in any direction. Motor shield l293d 4dc2step motors for arduino assembled. Motor supply is given to the vs pin of l293d and motor is connected to the first pair of drivers, which is enabled by connecting en1 to logic high. This shield can control servos, dc motors and stepper motors.
Het bevat twee l293d motor drivers en een 74hc595 schuifregister. The l293d ic has 16 pins and 8 pins on each side for simultaneously control two dc motors. Interfacing dc motor with pic microcontroller using l293d. Control a dc motor with arduino and l293d chip use. L293d is a suitable device to use for stepper motors, gear motors etc. There are four input pins, four output pins and two enable pins for each motor. These ics are designed to control 2 dc motors simultaneously. To power itself it requires 5v voltage through vcc1 and can deliver up to 12 volts through vcc2. You may download this code arduino sketch from here.
L293b pushpull four channel drivers stmicroelectronics. L293d motor driver will be used to reverse the direction of the current thus the direction of movement. Enable1 controls the output of output1 and output2. It provides control to motor1 input pins of the l293d motor driver which rotate motor. I have also found some people who look for its replacement. Motor driver ic technology robotix society, iit kharagpur. In this instructable i will show you the pin diagram of l293d motor driver. To know about the l293d motor controller go through the previous blog on interfacing d.
For information about adc in atmega16 and how to use it, refer the topic adc in atmega16 atmega 32 in the atmega inside section. An external unit is required to control the function of the l293d motor driver, like microcontroller, fpga etc. Interfacing dc motor with avr microcontroller atmega16. Motor drivers are one of the most important component almost used in all of the projects. Interfacing dc motor with atmega32 avr microcontroller using l293d. But, some motors, transistors, or motor driver chips are unable to switch on and off that quickly. We are going to use l293d motor driver ic to control dc motor movement in both directions. Learn about the motor driver ic l293d with the pin diagram. Arduino l293d motor driver shield tutorial arduino project hub. The l293d motor driver consists of an h bridge circuit. Avr atmega dc motor interfacing with atmega 1632 avr atmega.
Functioning of l293d motor driver electronics club, iit. We will be interfacing the stepper motor with both the motor drivers uln2003 and l293d. We are using porta of atmega16 to interface stepper motor for both the motor drivers. Similarly we will be interfacing it using l293d in next step. Vdd and vss of the pic microcontroller is not shown in the circuit diagram. L293d is a motor driver ic used to control motors with a microcontroller. As the name suggests it is mainly used to drive motors.
Tutorial by roboindia on motor control hardware require. For this tutorial we will be referring the motor driver ic as l293d only. Four io ports are connected to the four inputs of l293d ic as follows. Increasing the frequency above 20 khz may silence the motor whining. Driving a dc motor with an arduino and the l293d motor driver. I will interface it with a pic18f4550 microcontroller and demonstrate its working to drive a dc motor. The most commonly used motor driver ics are from the l293 series such as l293d, l293ne, etc. L293d motor driver ic pinout, equivalent ics, features and datasheet. The l293d is a dualchannel hbridge motor driver capable of driving a pair of dc motors or single stepper motor. Control signals is given by using atmega32 microcontroller which operates at 5v, hence vss is connected to 5v. Complete technical details can be found at the l293d datasheet given at the end of this page. Hbridge is the simplest circuit for controlling a low current rated motor.
The l293d can drive small and quiet big motors as well, check the voltage specification at the end of this page for more info along. It acts as a current amplifier as it takes a low current input signal from. First, lets hook up the components on the breadboard. As well, this ic can drive small and quiet big motors.