Questions tagged [l293d]
For questions about the L293D quadruple half-H driver integrated circuit.
53
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Information needed about Atmega8 development board
This is the image of the dev board consisting of an Atmega8-16PI chip and an L293D motor driver chips .It was was given to me by a friend and I am really curious on how to use it but I didn't find any ...
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1
answer
143
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What is causing one particular L293D chip to overheat?
I'm working on a device that controls three stepper motor actuators, one servo motor and a DC motor/encoder. The stepper motors and DC motor are run at 6V and are controlled by an Arduino Nano's GPIO ...
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1
answer
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ESP8266 WeMos L293D explode
I tried to use an L293D to drive 24 V passive buzzer using WeMos ESP8266. But for an unknown reason the L293D explodes or burns even without any load. I'm using 24 V power supply and an MP1584 step ...
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vote
1
answer
648
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Motor rotates well in one direction but runs slower in other with L298N and L293D [closed]
I connected two motors with an L293N driver. When I control it with my joystick, one motor works fine (Out 1 and 2 of driver). It rotates in one direction and the other very smoothly.
The problem ...
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2
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How to Limit Current Using L293D?
I’m designing a circuit to control 4 electromagnetic coils and subsequent orientation of a sphere (pic attached below). I’m new to EE but thanks to this forum I’ve learned what and how to utilize PWM ...
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I’m using the L293D IC as a driver, controlled by an Arduino board. Should I be worried about setting both inputs low?
Should I be worried about setting both inputs high? It seems that the simulation I made with Tinkercad doesn’t care of a short circuit happening, that’s why I need a word from an expert
I posted the ...
0
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2
answers
173
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Problem interfacing stepper motor with Atmega 32
I have been trying to interface a bipolar stepper motor with an ATmega32 controller using AVR assembly, but it just keeps clicking without movement or just move back and forth in the same step.
Here ...
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3
answers
384
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Using relay instead of L293d
I want to control a dc motor that I have . I don't need any speed or direction control just plain on/off. I was wondering if using a 5v dc relay is better or worse. My only requirement is to have as ...
0
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1
answer
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L293D Logic Current leak
I connected my arduino to L293d and then to a small water pump. I noticed that even when motor power suppply was off, the motor was running at low speed possibly drawing current from Arduino pins. ...
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3
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Can L293D be used for this motor? [duplicate]
Specs for the motors:
At 3VDC we measured 150mA @ 120 RPM no-load, and 1.1 Amps when stalled.
At 4.5VDC we measured 155mA @ 185 RPM no-load, and 1.2 Amps when stalled
At 6VDC we measured 160mA @ ...
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2
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L293D and PWM speed control
I'm using L293D to control a motor. The motor input pin of L293D is controlled by output pins of HT12D IC. To control the speed of the motor I have a PWM signal from Arduino, but to which pin of L293D ...
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2
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108
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Driving a 6v 250ma motor by using 12v 2A adapter
I am trying to use 4 motors(3-6V 250ma) controlled through 2 L293D Motor drivers. I have a 12V 2A adapter to supply VCC to the motor drivers. I am looking for a way to power my motors without damaging ...
2
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1
answer
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Circuit power issues causing LCD to change brightness when motor operates
My apologies I'm still getting to grips with the more advanced aspects of electronics, so apologies if this is a stupid question!
I'm building a sensor device with a Raspberry Pi, and have got ...
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1
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Arduino obstacle-avoiding car
I have built an Arduino obstacle-avoiding car.
After uploading the code, the car does not move.
It beeps for three seconds, waits three seconds and repeats continuously.
I am using a 9V battery ...
0
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2
answers
655
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Why use L293D if you don't need to reverse the motor?
Basic question about L293D, which I could not find a clear answer by searching the internet.
Still learning with my arduino project. The examples are good at describing how to use things and how to ...
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1
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Connecting different DC grounds to a single motor driver IC
I'm building a simple robot and have a L293D motor controller (details here and diagram below on the left). It takes two positive input voltages - one for powering the IC and one for driving the ...
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L293D (Motor Driver sheild. ) Overheating issue [duplicate]
I really do have a doubt. Actually I'm making Vplotter and for that I'm using 333nNm 0.31 A Stepper motor NEMA 17. And I'm giving an external supply of 5V and 1 A to motor driver sheild. Will L293D ...
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1
answer
183
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Bi-directional motor control with 3 push buttons [duplicate]
I am trying to create a system where there are 3 input buttons (PTM) and a dc motor output. The motor needs to be bidirectional.
The 3 buttons are: forwards, stop and backwards.
once the forwards or ...
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2
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This L293D just blew up. Can someone please help me figure out why?
I was using a motor driver breakout board with a L293D IC on it, along with a 7805 voltage regulator and a couple of capacitors.
I have been using it for 4-5 months and the wire connections stayed ...
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6
answers
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Why do we use capacitors in parallel with DC motors?
Below is the circuit diagram of an L293D motor driver IC driving 2 12V DC motors.
What I don't understand is the use of the capacitors marked 104 in parallel with the motors.
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L293E, voltage difference exists between output 1 and output 4, yet it can't drive a small motor
I'm using L293E to drive one motor in two direction.
Output 1 and output 4 are connected to the motor and I alternate Input 1 (1A) and Input 4 (4A) between VCC and GND. (never input1 == input4).
Vs ...
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1
answer
852
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Attiny85 crashes when I run a motor through an L293D
I'm trying to run a motor through an L293D turned on and off by an Attiny85. The Attiny85 has the micronucleus bootloader on it, which is why pin 3 is connected to a pull up resistor.
On the Attiny ...
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1
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Why ACS712 is abruptly dropping its voltage output?
I have built a board as shown in the images and the schematic below. I know that according to the datasheet when no current is flowing through the ACS712 it should output something around 2.5V always. ...
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2
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1k
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L293D DC motor affecting LCD display
In the circuit below, I have noticed that when the DC motor (12V) is disconnected, everything works nice. The LCD correctly displays what arduino sends to it. But ...
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2
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123
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Can a L293D H-bridge be used for this application?
I'm building a circuit that is needed for a logging device we have. With some of our sensors the current is going in one direction and with others the other way around. That means that we have a ...
0
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0
answers
487
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Microcontroller resets with motor driver (L293D)
I am making a simple robot with 2 BO motors driven by L293D on ATmega328P (took out from Arduino Uno). The robot when tested on Uno works fine. But when I put it on the board that I have designed (as ...
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votes
1
answer
408
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Two 9 V batteries in parallel
I don't know where else to ask this question and I think this is the best place so I'll ask here.
I'm making a remote controlled boat that uses two DC motor controlled by a L293D motor driver chip. ...
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vote
1
answer
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What is this triangle symbol representing?
I am getting started with electronics and decided to learn about the inner workings of the L293D. However, I found a symbol I don't recognize, which is the triangle with 3 connections. There are four ...
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2
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326
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L293D all inputs high
I want to use the L293D to control 2 motors forward/backward. My question is if I set all inputs (A) high, do I have a short circuit? Because the driver gets really really hot.
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Can't get L293D to work with Raspberry Pi Zero W
I have the following
When i turn
GPIO 17: high
GPIO 22: high
GPIO 27: low
or
GPIO 17: low
GPIO 22: high
GPIO 27: high
...
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1
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1
answer
195
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L293D for 24 volt circuit [closed]
simulate this circuit – Schematic created using CircuitLab
I am using a L293D to light up LED's.
I provide a 24 volt To light up my LED's.
Courant comsuption of each LED is 30 mA.
The maximum ...
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1
answer
883
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Control a dosing pump with raspberry pi zero w
Hi i have a few "Peristaltic Pump Dosing Pump 6V DC Motor" with the following specs:
DC: 6V
Non-load current: 100mA
So the idea was to control it with a ...
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3
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1k
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Is it possible to drive a 12 VDC motor with an XL6009?
I am a beginner in robotics. I am planning to drive a 12 VDC motor from a Raspberry Pi 2 B. I know the Pi does not have the capacity to drive such a device, so I am using an L293D motor driver to ...
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Control of 12V stepper motor using L293D dual H-bridge
I've been trying to get a new 12V stepper motor to turn using the circuit below. I connected the 12V to the IC but this led to my Arduino smoking and burning out.
I'm thinking that the 12V is being ...
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1
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Connect Multiple L293D Motor Controllers to Arduino
I would like to connect 3 L293D Motor controllers to an Arduino Uno with the hopes of powering 6 different dc motors. I was just wondering how to wire this being that one motor controller (which ...
2
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1
answer
809
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L293D and PWM on enable pin: TTL voltage drops to 4 Volts
I'm building a simple motor shield for Arduino based on the L293D bridge driver. I'm doing some tests on a breadboard everything is fine as long as I drive the motor at full throttle with DC inputs (...
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3
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Arduino is not getting power from adapter or Vin
Hi I am very much new to electronics, specially micro controllers and stuff. I am a Java/Android programmer by profession. I am currently creating a autonomous robot but I am stuck due to a problem.
...
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1
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ESP8266 controlling RC car. Voltage drop, ESP shuts down when I increase motor speed
I am preparing remotely controlled RC car using Android phone and ESP in TCP client/server configuration. I power it using 4x AA 1.2V batteries (2500mAh). The problem occurs when I try to accelerate ...
0
votes
1
answer
423
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Connect LM324 to L293D [closed]
I would like to control the motor direction using an LM324(as a window comparator) & an L293D. the two output pins of my LM324 go to the Logic input pins of the L293D. The output voltage of the ...
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2
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L293D Voltage & Current Ratings
According to the L293 Datasheet, the Maximum Supply Voltage(VCC1)(supply for internal logic translation) is 36V. It is also mentioned that Max Input Voltage(V1)=7V whereas the Max High Level Input ...
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0
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How to set up L293D - correct solution? [duplicate]
I want to control DC motors with L293D IC using my Raspberry Pi. I wanted to set it up similarily to this:
But then I found one article on Instructabiles, which said that it would work, but correct ...
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1
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Enable-A and Enable-B of H-Bridge L293D (or L298N)
I am using both L293D and L298N for controlling the stepper motor NEMA17. It rotates and stop as expected. I am not sure about the usage of Enabling provided by the L293D bridge. In this attached file ...
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1
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Does controlling 2 or more motors needs a regulator?
I have successfully controlled my stepper motor with a L293D and Arduino.
Now I want to add more motors (up to 3) each with it's own L293D driver.
I'm using a single separate power supply for the ...
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953
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L293D Motor driver 'braking' using input pins
I read the following on Wikipedia:
Using pins 2 and 7 ( 15 and 10) to determine motor START/STOP or PWM duties it's dangerous, since there wouldn't be high impedance outputs: Current would flow ...
0
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1
answer
535
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Trouble Driving a Solenoid with a LiPo Battery
I am having trouble getting enough current to drive a bi-directional solenoid with two leads. I am using a half of a L293 (Quadruple Half-H Driver) to drive the solenoid back and forth. The solenoid ...
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0
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1
answer
803
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Motor not strong enough to move buggy
For my A2 final project, I am making a buggy that can be programmed using an onboard control panel.
I have a GENIE E18 PIC Microcontroller to control the ins and outs, with an L293D Motor Driver to ...
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1
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Does VSS (Logic Supply Voltage) on a L293D need to be connected for the IC to work?
Here is my breadboard using an L293D . Pin 16 (VSS) is at the top right. I'm trying to have my project operate in sleep mode drawing as little current as possible. When I added the IC, my draw ...
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3
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967
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What type of diode?
I'm using raspberry pi 2 for driving a motor,, using motor driver L293d, through gpio pins of RPI.
My question is,if some short circuit happens between input and output of L293d,,12v goes to RPI,and ...
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2
answers
106
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Replacing 5 V pin with battery not working
I have a small breadboard that has a L293D motor controller and 2 DC motors. The board is hooked up to a Nordic DK and everything on the PWM side is fine. The breadboard is powered by the development ...
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1
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502
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driving 10A motor [closed]
I have made a wireless robot with ht12d/e and l293 ic and i have used two type of motors. first motor(plastic geared) was working ok with l293(i.e it was working at 1A)
second motor(johnson geared ...