Like i dont understand tat why are their two ports of one 12v and 5v? Pleade explain me the uses of them.
Also i heard that if we supply around 7 - 12 volts to 12 volt port then we can run even arduino with it.
So i thought that i can use my powerbank which supplies 5v and use step up dc converter to convert the 5v of the powerbank to around 8 volts
So that i can run motors and arduino from one supply itself.
Is it possible? If so is it a good idea.
By the way, i will be using a hc 05, sd card module, 6 ohm- 9 watt speaker, two bo motor, one servo motor totally.
If you can suggest a good power sirce it would be great!
To start off with I suggest you use two separate power supplies with a common GND. That way you are much less likely to run into problems. When it works with separate power supplies you can (if necessary) investigate using a single power supply knowing that your program and the first set of wiring connections works.
Anvay:
Ok i understood the first part of the question.
But what about the second part?
Many motor driver boards include a 5v regulator which can be used to derive a 5V
rail from the motor rail. If this regulator output is brought out to a connector you
can use it to power the Arduino. Details differ, you have to check.
You should post details of the 298 hardware you have: it's not clear (to me) if you have a loose 298 chip or a module with a 298 and other stuff on it, and if so, which one (there are loads of different makes).
There's a surface mount device that's probably a 5V regulator in the middle of that board.
Can't see the markings for the 3-row terminal block at the front, but thats probably ground and the
two supplies, and the jumper behind it to select between external and on-board regulator for the
logic supply to the L298.
A bit more detective work is needed to confirm this.
