Have been reading many articles showing how to connect DC motors to the Raspberry Pi and of course a DC Motor Driver Chip/Board is needed to come between DC motors and the Raspberry Pi GPIO Pins to be able to control the motor.
In many diagrams, they show how to connect batteries pack using a breadboard and a DC Motor Driver Chip/Board hooked up on the breadboard.
And a DC Power 5V pin and a GROUND pin of the Raspberry Pi are also connected to the DC Motor Driver Chip/Board through the breadboard.
None of the diagrams show that the Raspberry Pi itself is connected to the power source through its own micro USB or USB port. And the Raspberry Pi needs max 5V power to start up. Not more than 5V.
I plan to use
L293DNE Dual H-Bridge Motor Driver. My question is:
Besides controlling DC motors, is
L293DNE Dual H-Bridge Motor Driver Chip/Board itself also a 5V voltage regulator/converter which can be used to power the Raspberry Pi up from AA batteries?
Because it does not make sense to me if DC motors use a batteries pack and the Raspberry Pi uses another separate power source?