Where to find code L293D

Projects Programming
1

There is a page showing a L293D H-Bridge controller using only 2 processor pins control.

Are there any code examples for this arrangement, thanks

2

Probably the 2 pin option to Stepper library?

Anyway that's probably the wrong circuit for nearly all steppers you can buy these
days which are low-impedance and need a chopper-driver chip, not DC motor driver.

3

Thanks, however it does exist and does work but how to drive from an Arduino I don't know. Will carry on asking around. Why would it be shown on Arduino page?

Appreciate any else out there that might know. Regards

4

Another link

https://itp.nyu.edu/physcomp/lessons/dc-motors/stepper-motors/

Anyone tried?

5

Thanks UnoWatt. I will now give it a try, have a good week

6

Thanks again. It's a very small bipolar motor 26 ohm coils, 5 volts. It did run okay on a 4 pin input from a Picaxe, so worth trying on Arduino 2 pin input. Lets see

7

Oh 26 ohms is probably fine - you won't get huge speeds of course. Checkout the 2 wire options for
Stepper and AccelStepper libraries to see if they are the right thing.

8

Thanks Mark, I will look for the libraries, regards

9

Cannot see 2 wire stepper codes in AcelStepper library or Steppers? Any ideas? Thanks

10

There are 4 wire stepper motors, 5 wire stepper motors, 6 wire stepper motors, and 8 wire stepper motors. A two wire motor is NOT a stepper motor, unless it has a built in controller.

Post a link to the device that you think is a two wire stepper.

11

As said in beginning, its bipolar, 4 wires. Wanting to drive with L293D using only 2 pins. 2 wires crept into terminology of wording. Not a problem, always difficult to follow threads.

12

Pigs want to fly, too. You need the proper hardware to drive a stepper motor. A L293D is NOT the proper hardware.

13

PaulS:
Pigs want to fly, too. You need the proper hardware to drive a stepper motor. A L293D is NOT the proper hardware.

I really do wish you would at least make an attempt to READ and UNDERSTAND the questions before firing off your insulting responses. He clearly does NOT have a "2-wire motor". He made that clear more than once. And a L293D is a perfectly reasonable chip to use to drive a small stepper motor - it's been done, quite literally, millions of times. His motors are obviously small, and well-suited to use of an L293D driver. Simply Googling "L293D stepper will give you tens of thousands of examples. If you're not familiar enough with the L293D to know what it can and cannot do, then just DON'T ANSWER. It is better to remain silent, and be thought a fool, than to speak up, and remove all doubt.

Regards,
Ray L.

14

???

15

Thanks Ray. Best regards