Complete technical details can be found at the l293d datasheet given at the end of this page. This tutorial of robo india explains how to control dc motor using l293d ic motor. Output clamp diodes for inductive transient each output is a complete totempole drive circuit, suppression l293d with a darlington transistor sink and a pseudodarlington source. User can use this board for to build their dc or stepper motor based projects like a robotic arm, line follower, land robbers, maze followers and many other projects. L293d is a dual hbridge motor driver integrated circuit ic. Make a mini cnc plotter with old dvd players arduino and l293d. L293d motor driver module arduino tutorial dc motor control. L293d stmicroelectronics integrated circuits ics digikey. L293 optoisolated motor driver module open impulse. By pulsing the signals or using pwm the speed of the motors can be.
Hbridge is the simplest circuit for controlling a low current rated motor. The most commonly used motor driver ic s are from the l293 series such as l293d, l293ne, etc. It can simultaneously control the direction and speed of two dc motors. See the l293d datasheet for more information on connecting to the arduino and to the motor. This shield can drive two stepper motors at the same time and two servo motors. L293d dual h bridge motor driver ic l293d is quadruple highcurrent halfh driver.
L293d is a monolithic integrated, high voltage, high current, 4channel driver. In the circuit an arduino uno is used as the platform. I propose in this article to realize a mini plotter by realizing the mechanical elements by 3d printing. L293d motor driver and controlling motor using pwm nodemcu. Please read the user manual for information about appropriate power supplies. Vcc1 vcc2 control a control b 4, 5, 12, gnd thermal shutdown motor 16 3 3 6 11 14 4y 3y 2y 1y 1,2en 1a 2a 3,4en 3a 4a 15 10 9 7 2 1 figure 2. L293d has 4 outputs which makes it suitable for 4wire stepper motors. Solder the pins and wires carefully as mentioned below. L293d hbridge driver is the most commonly used driver for bidirectional motor driving applications. A h bridge is an electronic circuit that allows a voltage to be applied across a load in any direction. The l293 and l293d devices are quadruple highcurrent halfh drivers. In the tutorial introduction to l293d, i have shared all the necessary details about l 293d motor controllerdriver which includes its pinout diagram, applications, features, functional and logic diagram, packages etc. Pricing and availability on millions of electronic components from digikey electronics.
What we like most about this particular driver is that it comes with built in kickback diodes internally so you dont have to worry about the inductive kick damaging your project or driver theres a pwm input per driver so you can control motor speed. For controlling motor speed more than 100% on or off, you must use a pwm enabled pin on the arduino for the l293d enable pin ie. Motor drivers can be connected to the microcontroller to receive commands and run the motor with a high current. Motor driver ics act as an interface between microprocessors in robots and the motors in the robot. The l293d motor driver s output channels for the motor a and b are brought out to pins out1,out2 and out3,out4 respectively. I am planning on using my setup in an rc vehicle however the 5v supplied from my arduino is too low. The controller is build around the ic l293d that can. The l293 is designed to provide bidirectional drive currents of up to 1 a at voltages from 4. Basically this means using this chip you can use dc motors and power supplies of up to 36 volts, thats some pretty big motors and the chip can supply a maximum current of 600ma per channel, the l293d chip is also whats known as a type of hbridge. Here is a brief description of the functionality of each pin in ic pin 1 enable 1,2 this pin is set high in order to enable output at pins 3 and 4 i. Basically you can use dc motors and power supplies of up to 36 volts, thats some pretty big motors and the chip can supply a maximum current of 600ma per channel, the l293d chip is also whats known as a type of.
Motor driver and hbridge basics generally, even the simplest robot requires a motor to rotate a wheel or performs particular action. As mentioned earlier, a motor driver ic consists of two hbridge circuits which can be used for controlling two motors simultaneously. As mentioned earlier, a motor driver ic consists of two hbridge circuits which can be. Buy l293d dual h bridge motor driver ic online in india. We will be referring the motor driver ic as l293d only. Two phase motor driver, block diagram of l 293d application for two phase motor is given in the figure shown below.
I am planning on using a 12v power supply then with a lm7805 voltage regulator step down the voltage to my nano to 5v. The l293d is a dualchannel hbridge motor driver capable of driving a pair of dc motors or single stepper motor. Vcc1 v cc2 16 8 1,2en 1 1a 2 2a 7 3,4en 9 3a 10 4a 15 control a control b 4, 5, 12, gnd thermal shutdown motor 1y 3 2y 6 3y 11 4y 14 figure 3. Drivers are enabled in pairs, with drivers 1 and 2 enabled by 1,2en and drivers 3 and 4. Need the current provided by the mcu is of the order of 5ma and that required by a motor is 500ma. Interfacing dc motor with pic microcontroller using l293d. Driving a dc motor with an arduino and the l293d motor driver. The l293d motor driver chip is a two channel hbridge motor driver which can control two separate motors. Revised november 2004 8 post office box 655303 dallas, texas 75265 application information 5 v 24 v 10 k. Oct 11, 2017 in this motor driver circuit, we have used four l293d motor driver ics for driving motors.
Dual hbridge motor driver l293d ic building the circuit part ii. Jul 11, 2017 two phase motor driver, block diagram of l 293d application for two phase motor is given in the figure shown below. Each half of the driver chip uses two input signals from a picaxe to control whether the related motor is stopped, or moves backwards or forwards. Hbridge motor control circuit using l293d motor driver ic. Nov 01, 2016 it means that we can control two dc motor with a single l293d ic. Diy arduino uno cnc plotter machine project with code and. L293d motor driver ic used in robots buy online india. Learn about the motor driver ic l293d with the pin diagram. The mechanical construction and more particularly the pencil holder can be difficult. Dont bother writing up uploading code or wiring up motors if the led doesnt. The motor driver is a module for motors that allows you to control the working speed and. Its control pins allow us to do the equivalent of swapping over the motor terminals to. Controlling a dc motor using l293d motor driver board. L298n is an integrated circuit multi watt 15 package and capable of giving high voltage.
These ics are designed to control 2 dc motors simultaneously. L293d is a simply a motor driver ic which allows dc motor to drive on either direction. Direction and speed control of dc motor in msp430g2553 using l298n l293d and potentiometer. This video explains the detailed working of the l293d motor driver ic.
Direction and speed control of dc motor in msp430g2553 using l298nl293d and potentiometer. The l293d is designed to provide bidirectional drive currents of up to 600ma at voltages from 4. L293d motor driver arduino robo india tutorials learn. The secret l293d motor driver ii t ereer 1 suspiciously small red printed circuit board pcb.
In this article, we want to take a deeper look at l293d ic. Feb 08, 2016 this video explains the working of a motor driver l293d and how to use it in a robotic project. H bridge motor control circuit using l293d ic hbridge circuit. L293d bipolar motor driver parallel 16powerdip from stmicroelectronics. It is a nice project and ideal to start with its arduino. Gear motor is connected to arduino uno via motor driver ic l293d. A motor driver ic named l293d is used here for interfacing the gear motor with arduino. The l293d is a 16pin motor driver ic which can control up to two dc motors simultaneously, in any direction. L293d motor driver ic pinout, equivalent ics, features and. A motor driver ic like l293d or l298 is used for this purpose which has two hbridge drivers. Motor driver ic technology robotix society, iit kharagpur. L293d output clamp diodes for inductive transient suppression l293d openinnew find other brushed dc bdc motor drivers description. 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.
The arduinobased circuit is using the atmega328 microcontroller, two l293 motor driver ics and an usb to serial module. 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. I have used a marker to mark the pins to avoid confusion. L293d motor driver ic l293d pin diagram working and. The hbridge is typically an electrical circuit that enables a voltage to be applied across a load in either direction to an output, e. Control b 4, 5, 12, gnd thermal shutdown motor 1y 3 2y 6 3y 11 4y 14 figure 3. It is a dual hbridge motor driver ic and can control two motors simultaneously. This is lesson 15 in the learn arduino adafruit series. This is designed to provide bidirectional drive currents at voltages from 5 v to 36 v.
Go to the following link and download the datasheet of the ic l293. L293, l293d quadruple halfh drivers slrs008b september 1986 revised june 2002 post office box 655303 dallas, texas 75265 7 application information 5 v 24 v 10 k. Mar 23, 2018 this video explains the detailed working of the l293d motor driver ic. But the numbering is different for different specs and company. Its control pins allow us to do the equivalent of swapping over the motor terminals to reverse the direction of the motor. L293d is one of the most popular motor drivers to run dc motors with up to 1a current load. What is the difference between ic l293, l293d, and l293b.
The dc motor speed in general is directly proportional to the supply voltage, so if reduce the voltage from 9 volts to 4. Therefore, we must control motors using controllers logic circuits or. This gives us a clue as to how the l293d chip works. Hello there, i am currently using a single l293d motor driver to control 2 12v dc motors. It means that we can control two dc motor with a single l293d ic. To measure this directly on your real circuit, use a multimeter in ampere mode to measure current, and volt mode to measure the voltage on the motor terminals when it is on. L293d motor driver shield for arduino the l293d is a monolithic integrated, high voltage, high current, 4channel driver module. The ground connection should be left unconnected since the motors are bipoplar type. L298n motor driver ic pinout, features, applications and example. Oct 23, 2010 need the current provided by the mcu is of the order of 5ma and that required by a motor is 500ma. This module also features an optocoupler, in order to protect the mcu from electromagnetic interference. The l293d is a monolithic integrated, high voltage, high current, 4channel driver.
You can easily make it with the arduino uno board and an breadboard. This video explains the working of a motor driver l293d and how to use it in a robotic project. L293d is a 16pin ic which can control a set of two dc motors simultaneously in any direction. In this motor driver circuit, we have used four l293d motor driver ics for driving motors. This l293d ic allows dc motor to drive on either direction. The most commonly used motor driver ics are from the l293 series such as l293d, l293ne, etc. The arduino board contains a 10bit analog to digital converter. L293d is a suitable device to use for stepper motors, gear motors etc. Feb 12, 20 picaxe crashes when running l293d motor drive. This higher current signal is used to drive the motors.
L293d motor driver ic l293d, is a motor driver ic which allows the motor to drive on either direction. Drivers are enabled in pairs, with 2 applications drivers 1 and 2 enabled by 1,2en and drivers 3 and 4 stepper motor drivers enabled by 3,4en. Think of stmicroelectronics 4channel l293d stepper motor driver the next time you would like to automate your existing hydraulic pump or linear actuator. Arduino gear motor interface using ic l293d motor driver. This board is capable to drive 8 dc motor or 4 stepper motors at a time. Hc06 to print your texts or images wirelessly through your computer bluetooth connection. An l293d has 4 input pins, 4 output pins, 2 enable pins, vss, vcc and gnd. Allows controlling up to 6 motors or 3 motors if you want to control the rotation of the motors. Insert the l293d motor driver shield onto the arduino uno board. Each channel on the ic can deliver up to 600ma to the dc motor. Hence, motor cant be controlled directly by mcu and we need an interface between the mcu and the motor. The l293d uses 5v for its own power and external power source is needed to drive the motors, which can be up to 36v and draw up to 600ma. As the name suggests it is mainly used to drive motors. Since motors require more current then the microcontroller pin can typically generate, you need some type of a switch transistors, mosfet, relay etc.
You can connect two dc motors having voltages between 4. Feb 08, 2016 hi, i want to control movement of my robot through motor driver ic. Add a red wire or any color to connect pin9 to enable pin. The l293d is a 16 pin ic, with eight pins, on each side, to controlling of two dc motor simultaneously. L293d motor driver ic pinout, equivalent ics, features and datasheet. It is a high current dual fullbridge driver that is designed to accept standard ttl logic levels. In order to use an l293d motor driver board you must first understand the fundamentals of how the ic works. L293d contains two inbuilt hbridge driver circuits. This driver module is based on the l293 dual motor driver chip which is designed to provide bidirectional drive currents of up to 1 a at voltages from 4.