Comments on: Arduino – Control DC Motor via Bluetooth

By: Nadav Gordon

Nadav Gordon — Tue, 25 Apr 2023 16:46:00 +0000

Hi there, whenever I do the motor off command through the bluetooth it prints properly, but when I input 1 or 2, it only prints M or Mot, and nothing happens to the motor itself, what should I do?

By: TAShah

TAShah — Thu, 17 Nov 2022 12:02:39 +0000

Hi, I just wanted to know what should i do if i want to turn off the motor even though i have already given it a command?

By: Sara Santos

Sara Santos — Tue, 12 Oct 2021 09:55:20 +0000

In reply to Anvith.

Hi.
You can connect the external power source (+) to pin 8 of the L293D IC.
Connect the external power source (-) to one of the GND pins, for example pin 4.
Search for the LD293D IC pinout before making any connections.
Regards,
Sara

By: Anvith

Anvith — Mon, 11 Oct 2021 15:22:10 +0000

In reply to Sara Santos. mit app inventor and I solved that problem and can u tell how to add an external power source for the motor i have a 9 volt one Thank you

By: Sara Santos

Sara Santos — Thu, 07 Oct 2021 21:06:18 +0000

In reply to Anvith.

Hi.
How are you controlling the pump?
Regards,
Sara

By: Anvith

Anvith — Thu, 07 Oct 2021 17:02:15 +0000

In reply to Rui Santos. Hi sir, I am doing a project in which i want to turn on and off a 9v waterpump using mit app inventor. I am able to turn on the pump but i cant off it.Can u tell some fix's for it

By: Sara Santos

Sara Santos — Sun, 28 Apr 2019 13:31:08 +0000

In reply to Kalel Sourabh.

Hi.
Unfortunately, we don’t have any guide about RemoteXY.
You can read the introduction of this tutorial: https://randomnerdtutorials.com/esp32-dc-motor-l298n-motor-driver-control-speed-direction/ to learn how to wire the motors using the L298N motor driver and 9V power source.

By: Kalel Sourabh

Kalel Sourabh — Sat, 27 Apr 2019 17:08:58 +0000

I have project almost same as the above one, additionally I’ll be using 9V battery to power. I wanted to ask how should make the right connections and is it possible that I work this out with RemoteXY so that I can have dedicated interface and buttons to make it more user friendly in place of Blueterm. Please guide.
Thank you.

By: Sara Santos

Sara Santos — Sun, 16 Dec 2018 10:27:50 +0000

In reply to bryan czaya.

Hi.
I don’t think this is the most appropriate tutorial to build a garage door opener.
Regards,
Sara

By: bryan czaya

bryan czaya — Fri, 14 Dec 2018 11:51:23 +0000

Hi, I would like to know how I can apply this in an electric garage door motor. And if there is a way to stop it without crashing