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Questions tagged [l293d]

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0
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0answers
15 views

Producing Bi-Phasic Constant Current Pulse using L293 IC

I am trying to convert a current source output into the bi-phasic pulses. I thought maybe using L293 IC might help to change polarity of the currents. Here is the picture of design: as can be seen ...
0
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1answer
69 views

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 ...
1
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1answer
41 views

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. ...
0
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2answers
115 views

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 ...
0
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2answers
57 views

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 ...
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0answers
64 views

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 ...
2
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1answer
121 views

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. ...
1
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1answer
303 views

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 ...
0
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2answers
57 views

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.
2
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0answers
187 views

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 ...
1
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1answer
87 views

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 ...
0
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1answer
306 views

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 ...
0
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1answer
189 views

Is it possible to drive a 12V DC motor with XL6009?

I am a beginner in robotics. I am planning to drive a 12V DC motor from Raspberry Pi 2 B . I know Pi does not have that capacity to drive such a device , so I am using L293D motor driver to control ...
0
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1answer
1k views

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 ...
-1
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1answer
72 views

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 ...
1
vote
1answer
335 views

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 (...
0
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3answers
500 views

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. ...
0
votes
1answer
331 views

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
1answer
272 views

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 ...
0
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2answers
9k views

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 ...
1
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0answers
35 views

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 ...
0
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1answer
338 views

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 ...
-1
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1answer
59 views

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 ...
0
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1answer
536 views

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
votes
1answer
246 views

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 ...
0
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1answer
492 views

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 ...
1
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1answer
1k views

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 ...
2
votes
3answers
501 views

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 ...
0
votes
2answers
87 views

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 ...
-2
votes
1answer
311 views

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 ...
2
votes
1answer
1k views

Pin with no driver - Kicad

I'm new to Kicad and I'm having some problems using Eeschema. Every time I connect a power source to an IC pin, in this case the L293D, I get the following error: ...
2
votes
0answers
1k views

L293D 2 Phase Bipolar Stepper Motor

I have an M35SP-11NK stepper motor that I would like to be able to drive with an L293D driver chip. The circuit below is how I've got it wired up so far. I've derived this from numerous sources on the ...
30
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2answers
9k views

L293, L298 and SN754410 H-bridge drivers on low voltage power supply

This question is about the following three integrated H-bridge drivers: - L293 or L293D (D = protection diodes added) SN754410 (protection diodes included) L298 (no protection diodes) Time after ...