But, L293d motor shield already take 0 and 1 PIN. Then, how I connect the Bluetooth module?
By using software serial.
So, how i use the "software serial" ?
But, L293d motor shield already take 0 and 1 PIN.
Use the analog pins as digital I/O.
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..
Grumpy_Mike suggest me to use SoftwareSerial and analog pin to use as digital pin.
But, L293d motor shield already take 0 and 1 PIN
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.