Comments on: Control a DC motor with Arduino and L293D chip

By: LASER Projector | Mtaram's Daze

LASER Projector | Mtaram's Daze — Fri, 04 May 2012 07:40:39 +0000

[...] Next was this LASER Projector (pattern generator to be precise). It involves two DC motors and L293D as a motor driver. [...]

By: sannan

sannan — Wed, 11 Apr 2012 14:45:38 +0000

how can you control two motors???

By: MotorMan

MotorMan — Sat, 07 Apr 2012 17:12:59 +0000

Check out this guide for a variable speed motor controller called GOduino II. It seems the designer based his work on your project.

GOduino II = Arduino + L293D Variable Speed Motor Controller
http://www.instructables.com/id/GOduino-II-Arduino-L293D-Variable-Speed-Motor-/

By: amit

amit — Thu, 29 Mar 2012 10:34:39 +0000

the opreating voltage should be 9 v.

By: amit

amit — Thu, 29 Mar 2012 10:29:35 +0000

hi please help me .. i want to control 2 dc motor with l293d with arduino uno .how can i control the rotation of motors clockwise n anti-clockwise. please write a program.

By: uz

uz — Tue, 27 Mar 2012 12:45:33 +0000

hi…its really such a nice tutorial…
actually i am driving 2 dc motor with l293d and i am using arduino uno…my question is that when i am giving the power supply its automatically starts and its speed is very high…how to control the speed?????
actually i was trying to move it with voice command

By: sannan

sannan — Sat, 24 Mar 2012 12:41:16 +0000

How did you connect that 10microfarad capacitor??? I really appreciate your work…. thanks in advance

By: villkomme

villkomme — Thu, 22 Mar 2012 17:11:17 +0000

how if i want to control 3 dc motor do i need 2 L293D? L293D support only two motor.if yes how about it connection?

By: Paul B.

Paul B. — Thu, 22 Mar 2012 04:56:05 +0000

Larry, thanks for posting this information. It has been most helpfull. I have a few questions though. The stepper motors I have require 24 volts. Would this circuit work the same way if the 6V power supply was changed out for 24 volts?

The other question is what is the advantage of driving the motors with this L293D vs. using a few transistors and controlling the steps with the Arduino?

I have a circuit with an Arduino controlling some LEDs with how I want to drive the 4 leads of the stepper with full steps and half steps. Then I have a circuit with divided voltage with 4.5 volts going through some momentary switches into the base of some transistors to switch the full 24 volts going to the stepper motor. so if I push the buttons in the right order the motor starts stepping forward. But my questions are aimed at combining the two circuits without frying my Arduino.

thanks!
Paul

By: preet

preet — Sun, 18 Mar 2012 22:51:24 +0000

hey,
i mtrying to compile this program in c but thisone is giving me some errors.