Questions tagged [l293d]

DC Motor Driver IC with two H-Bridges

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-3 votes
0 answers
26 views

How to run 4 DC motors off of an Arduino's uno R3 with two L293D's [closed]

Im trying to run 4 12V DC motors off an Arduino Uno with two L293D's and I think how I’m wiring it up is incorrect, I would appreciate the help if anyone can tell from the schematic. It’s using KiCad ...
Liam Hatala's user avatar
-1 votes
1 answer
41 views

Arduino works indefinitely without PC contact [closed]

I'm studying H-Bridge for DC motors. I have a 9V battery, DC motor (9v), Arduino Nano and L293D. I'm following Jeremy Bloom's book about Arduino. Well, the system works perfectly with a PC connected. ...
uckorka's user avatar
2 votes
1 answer
71 views

I would like to know why my four gear motors are rotating at different speeds when connected to 2 L293D motor drivers, controlled by the arduino

Ignore direction of the motors(for now). This is my connection diagram. Any and all improvements to this are welcome. Bottom left motor seems to run at 210-224 rpm Bottom right motor runs at 160-180 ...
Veeraja Veeraesh's user avatar
1 vote
1 answer
278 views

What are the Vs and Vss pins on an L293D chip for?

I made a simple test circuit to help me understand the L293D H-bridge that comes with the Arduino starter kit. Digital output pins of the Arduino are wired to the input pins on the H-bridge. Arduino ...
Jack M's user avatar
  • 123
1 vote
0 answers
125 views

I’m having trouble getting a motor to run for 10 seconds and then reverse direction every time push button is pushed down

i am brand new to arduino and was looking for a little help. i am looking to activate a motor once the button is pushed for 10 seconds and then have it stop. then the next time the button is pushed, ...
joe's user avatar
  • 11
0 votes
1 answer
430 views

How do I instruct the L293D to operate a motor at full speed when using 3.3V GPIO pins?

If the L293D enable and input pins expect [up to] 5V inputs; what is the best way to deliver full power to the output pins when using an ESP32 or any other microcontroller which uses 3.3V GPIO pins? I'...
HardlyNoticeable's user avatar
1 vote
1 answer
238 views

what is the maximum number of servo motors that can be connected to a l293d motor shield?

I have a requirement in which I need to run 2 motors and 6 servos. The motors and servos won't be running simultaneously at any given time. what best can I use. I Was hoping to use l293d shield as it ...
shubham bhuyan's user avatar
0 votes
1 answer
383 views

Adding L293D motor shield to Breadboard

Anyone knows how to attach the l293D motor driver shield on a breadboard? I need to put the shield on top of a breadboard and then use an Atmega328P as the main way of controlling it. Than you :)
August Exner's user avatar
1 vote
2 answers
184 views

I need a good battery reccomendation

I have simple project composed of an Arduino Nano, a HC-05 module, and a small toy DC motor controlled using a L293D driver, I want to be able to power this circuit entirely using a battery, here is ...
The Riser's user avatar
  • 123
2 votes
2 answers
477 views

L293D motorshield with batteries doesn't power Arduino

Recently I came across a video about a guy building a remote Bluetooth-controlled Arduino car and I was quite amazed. So I decided I wanted to build it too. I have no Arduino or electronics experience ...
Yestli's user avatar
  • 31
1 vote
0 answers
21 views

What do i do to get my bluetooth module to light up?

I'm very new to arduino and am doing my first project, a bluetooth run robot. When i plugged in my module to my laptop to upload the code, the module lights up, and afterwards, i was able to run it on ...
user69837's user avatar
1 vote
1 answer
148 views

Stepper motor not working as expected

Kunal Gupta: Guys plss help me .... I am having issues in using stepper motor I have tried both 28bjy with uln2003 and l293d .. giving it output supply of 5V . Motor is vibrating but its shaft is not ...
Kunal's user avatar
  • 81
1 vote
1 answer
81 views

L293D motor shield

I have the L293D motor shield on top of my Arduino UNO. The L293D has a servo attached of 5 volt and a motor of 12 volt there is an external power supply. If I remove the jumper of the board and power ...
Thibault Q's user avatar
1 vote
2 answers
2k views

L298N motor driver and battery issues

I'm trying to build an Arduino 4WD smart car. so i connected my l298N motor driver module with my v4 shield and used a 4 x 1.5v AA batteries to try and power my 4 motors up. i connected 2 of the ...
Ayanfe Adekanye's user avatar
1 vote
0 answers
164 views

How much power should I supply to L293d shield to run 4 tt gear dc motors and 1 servo sg90?

I'm new to Arduino. I am trying to making an obstacle avoiding car using Arduino Uno and L293d motor driver shield. Four tt gear dc motors and 1 servo motor were connected. How much power should I ...
Zishan ali's user avatar
1 vote
0 answers
291 views

motor driver shield covering ports for ultrasonic sensor

im new to arduino and am making an arduino car. the motor driver shield covers the ports (am connecting an ultrasonic sensor) and i know that we can connect it to the 'holes' on the motor driver ...
V2ube's user avatar
  • 11
0 votes
1 answer
74 views

How to wire L293D chip to a nodeMCU?

How do I wire an L293D motor controller chip to a nodeMCU? I have tried to follow the instructions from this tutorial: lastminuteengineers.com One problem. I don't have a 5v pin? Are there any ...
X Builder's user avatar
  • 111
0 votes
1 answer
698 views

Powering Arduino and L293D with the same Power Supply

I am relatively new to Arduino and plan to power an Arduino and an L293D Motor Driver with the same 9V power supply as in the diagram below. I tried to simulate this with Tinkercad, but it seems like ...
Marco's user avatar
  • 11
0 votes
0 answers
32 views

How to control 2 micro magnetic actuators with esp12e

i want to control two micro magnetic actuators (just two coil where I want to flow current in +to- and-to+ each motor for wifi airplane) with esp12e Do I need an h-bridge like l293d ? Also I will be ...
Anmol Kumar's user avatar
1 vote
1 answer
150 views

Motor does not work for a specific case when programming with L293D motor driver shield

I tried to make a car that moves using a 4x4 keypad. Pressing "12" unlocks the car and sets the motors to move forward. After that, if I press 4, the speed of the left motor is reduced to ...
Raghav Arora's user avatar
-1 votes
1 answer
617 views

Motor cutting out when using HC-05 Bluetooth module

I'm using an L293D motor driver chip along with an HC-05 Bluetooth module. The two work as expected separately - I can send a string via a Bluetooth terminal app on my phone to the HC-05 and I see it ...
javathunderman's user avatar
1 vote
1 answer
731 views

Input current for L293D shield

I am a newbie in arduino working on a bot with L293D shield. But I have a question as what would be the input current to drive all 4 dc motors and 2 servo motors. I can see that it can supply 0.6Amp ...
sdebarun's user avatar
-1 votes
1 answer
305 views

Why is my Arduino code for running a Bluetooth controlled robot with obstacle sensor not working as it should be?

I have created a Bluetooth based smartphone controlled robot (a 4 wheel car) earlier using Arduino and an obstacle avoidance robot. Now, I wanted to combine both of them. So, I combined their ...
Naved THE Sheikh's user avatar
1 vote
1 answer
131 views

Any possible way to stack Motor Driver shield L293D with Xbee Shield v03 on arduino?

So i am trying to stack these two shield on arduino, now the problem here is that i guess there is a conflict between the pins of arduino being used by both shields, so can anyone suggest a solution?
Ertugrul01's user avatar
0 votes
1 answer
628 views

Can you drive a stepper motor without the L293D

Can you drive a stepper motor without L293D. Don't awnser without giving explanations or saying it will be cheaper to buy the L293D. Thanks
mohamed azaiez's user avatar
1 vote
2 answers
429 views

DC motor phototransistor control

So basically I have a circuit with a phototransistor, and want to convert the phototransistor value into a PWM signal that can control the speed of the motor. The code I came up with is below, however ...
PythoniusNoobus's user avatar
-1 votes
1 answer
836 views

L293D with arduino's 5V

I am trying to use L293D with relay to power a 12V DC motor. Can I use arduino's 5V to provide L293D inputs 4 and 8 such as in the drawing? Or do I need to use a separate source, e.g. a power module?
atapaka's user avatar
  • 99
-1 votes
1 answer
868 views

How to properly run four DC motors with an Arduino?

I am working on a project where I have four DC motors that are controlled by two L293D motor drivers. Two of the motors act as the wheels of the robot, and the other two act as a mop. The Arduino ...
Lloyd Dominic's user avatar
0 votes
1 answer
58 views

State machine doesn't function

My goal is to make a logic controller for a cassette tape mechanism, right now I'm simply trying to get the mechanism to engage and disengage the pinchroller arm which is motorized, spin the reels/...
Kreation's user avatar
  • 121
2 votes
1 answer
894 views

2 Motor Robot Control with RC Radio

I am making a robot for a local robotics competition. One main function I need to do is move it forward, backward, right, left. Just like an RC car. I have programmed it to do that but it seems ...
Ethan J's user avatar
  • 35
2 votes
2 answers
3k views

State machine sketch to drive a DC motor with limit switches [closed]

I have a DC motor that will need to use two limit switches to detect end of travel in two directions. I've read that coding a state machine to do this task is the best method, however I have no idea ...
Kreation's user avatar
  • 121
-1 votes
1 answer
51 views

Arduino connection with Arduino

I have 3 Arduino boards, let's call them be A, B, C. I'm connecting A with a bluetooth module and I'm getting the input from the bluetooth module. Now I want to send output from A using the digital ...
Arko Biswas's user avatar
0 votes
1 answer
78 views

Use an L293D with Arduino [closed]

I am making a 2-wheeled Arduino car controlled by T.V. remote for a science fair tomorrow. I have found a tutorial for the IR part. I brought this L293D motor driver to control a 2-wheeled car. I am ...
infixint943's user avatar