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Has anyone used the L293D Motor Driver Shield & Arduino?

I am having issues loading the UNO with the firmware. Can anyone tell me what software I can load onto the UNO in order to operate the L293D? I tried to use the SelectorFirmwareMK4.ino.with_bootloader.hex but I continue to get and error. "Arduino can only open its own sketches and other files ending in .ino or .pde.".

30 comments

30 Comments

Jared Rementer

Apr 10

I also found this doc that helps explain the pin out. https://playwithcircuit.com/l293d-motor-driver-shield-arduino-tutorial/ So the question becomes are we programming the pins on the Arduino or the L293 Motor shield? And what are they looking for regarding the label of the pin. Found this code on another site. Looks like the L293 has a forward and backward pin out. Is that what chameleon has as well?

Edited

Liam Pulido

Apr 10

Replying to

So here are a few clarifications that may be helpful:

1) The motor shield is an "extension" of the arduino, so the arduino is the only thing getting programmed, and all the shield does is allow the arduino to control the motors. The shield itself does not get programmed.

2) The shield can drive 4 DC motors OR 2 stepper motors, which makes finding online diagrams somewhat confusing.

3) The code you will need to modify the pinout on can be found here: https://github.com/3DChameleon/3DChameleonMk4/blob/main/SelectorFirmwareMk4/SelectorFirmwareMk4.ino

I may have more information about this soon, so stay tuned!

(or you could just replace the l293d with a $4 CNC v3 shield from aliex, so I can give more helpful instructions. This shield looks quite a bit more complicated, so you do you)