Questions tagged [l293d]

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11 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 ...
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2answers
90 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 ...
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0answers
28 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 ...
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1answer
32 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 ...
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1answer
720 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 ...
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1answer
97 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 ...
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0answers
22 views

Motor not working with L293d shield

My code uploads to Arduino but the motor is not moving when I connect it to the L293d motor driver shield. I am supplying 12V 2A to the shield through an adapter, connected to dc motor at M2. tThis is ...
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1answer
20 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 ...
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0answers
26 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 ...
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0answers
16 views

Ultrasonic Sensor and Motor Driver Shield [duplicate]

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 ...
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0answers
41 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 ...
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1answer
40 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?
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1answer
48 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 ...
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0answers
20 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 ...
1
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1answer
38 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 ...
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1answer
45 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 ...
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2answers
116 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 ...
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1answer
132 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 ...
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1answer
237 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
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1answer
200 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?
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1answer
329 views

How to properly run 4 DC motors with an Arduino?

I am working on a project where I have 4 DC motors that is controlled by 2 L293D motor drivers. 2 of the motors act as the wheels of the robot, and the other 2 act as a mop. The Arduino board is ...
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0answers
368 views

Powering Arduino and L293D shield using a single power supply

I am a making a line follower with two dc motors. I am using a L293D motor driver shield with Arduino Mega. Specification of the BO motors I am using: Working voltage : 3V to 9V 30gm weight ...
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1answer
45 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/...
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2answers
2k 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 ...
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1answer
46 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 ...
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1answer
73 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 ...