Hc-05 bluetooth module connection with L293d motor shiled with Arduino Uno

Using Arduino LEDs and Multiplexing
1

I want use L293d Motor shield with Arduino Uno and also want to connect a Hc-05 Bluetooth module with Arduino Uno Pin 0 and 1. But, L293d motor shield already take 0 and 1 PIN. Then, how I connect the Bluetooth module?

link for zoom view of the shield...

https://www.resistorpark.com/arduino-motor-shield-l293d/

L293d Motor shiled front.jpg
L293d Motor shiled front.jpg1280×960 446 KB

L293d Motor shiled bottom.jpg
L293d Motor shiled bottom.jpg1280×960 508 KB

2

But, L293d motor shield already take 0 and 1 PIN. Then, how I connect the Bluetooth module?

By using software serial.

3

Grumpy_Mike:
By using software serial.

I watched some video where they solder 2 jumper wire with the top of the l293d motor shield or bottom of the arduino board to connect 0 and 1 pin the Bluetooth. Is it possible to work ? And l293d motor shield takes all Arduino Uno's digital pins (except pin 2). So, how i use the "software serial" ?

4

So, how i use the "software serial" ?

Use the analog pins as digital I/O.

5

Raktim2000:
But, L293d motor shield already take 0 and 1 PIN.

No it doesn't. Shields always cover all pins, but not all pins are actually used.
But you shouldn't use pin 0,1 anyway.
Because pin 0,1 are already used by the USB<>Serial chip.

As Grumpy_Mike said, use SoftwareSerial on the analogue pins.
You can add a pinstrip to the shield holes marked A0-5 for easier connection with Dupond wires.
SoftwareSerial examples can be found in File>Examples of the IDE.
Leo..

6

Grumpy_Mike:
Use the analog pins as digital I/O.

Thank you Grumpy_Mike for helpe me...

Wawa:
No it doesn't. Shields always cover all pins, but not all pins are actually used.
But you shouldn't use pin 0,1 anyway.
Because pin 0,1 are already used by the USB<>Serial chip.

As Grumpy_Mike said, use SoftwareSerial on the analogue pins.
You can add a pinstrip to the shield holes marked A0-5 for easier connection with Dupond wires.
SoftwareSerial examples can be found in File>Examples of the IDE.
Leo..

Thanks wawa...

7

Grumpy_Mike suggest me to use SoftwareSerial and analog pin to use as digital pin. It's ok and one this is the another way.

But, if I placed the motor shield to Arduino uno. Just like this

800×800 116 KB

Then, can I solder some wire with the motor shield's 0 and 1 pin for serial communication ? Is It works?

8

Grumpy_Mike suggest me to use SoftwareSerial and analog pin to use as digital pin.

Only because in the original post you said:-

But, L293d motor shield already take 0 and 1 PIN

If this statement is not true, as it now appears not to be, then yes you can use those pins if you can get at them to make connections to them.

9

Grumpy_Mike:
Only because in the original post you said:-
If this statement is not true, as it now appears not to be, then yes you can use those pins if you can get at them to make connections to them.

Thank you